RoRo Door

medium 48 models total

A RoRo door closes an opening in the hull or superstructure that vehicles drive through, and unlike a ramp it is not meant to be driven over, so its design is built entirely around watertight or weathertight sealing and reliable operation under load from wind and sea.

What sets a RoRo door apart

Within RoRo equipment, ramps carry vehicle weight while they are open, but a RoRo door's only job is to seal an opening once vehicles have passed through it, closing off a bow, stern or side opening that would otherwise be exposed to the sea. Bow and stern doors close large openings that may sit at or below the freeboard deck, and their integrity is a direct line of defence against flooding, which is why door failures have historically been among the most serious causes of RoRo vessel loss.

RoRo door, closed position — Side elevation of a RoRo door closed into its hull opening, showing the coaming, the door panel, the top hinge, the hydraulic operating cylinder, the perimeter sealing gasket and the locking cleats at the bottom edge.

Main components

Door leaf

A single or split-leaf steel structure, hinged or sliding, sized to the vehicle deck opening and stiffened to resist sea pressure when closed.

Hoisting or hinging mechanism

Hydraulic cylinders or wire hoists that raise, lower or swing the leaf, typically with a mechanical locking system that takes the load once the door is closed so the hydraulics are not left holding the seal under sea pressure.

Sealing arrangement

A rubber gasket compressed by the closing and locking sequence, running the full perimeter of the opening, backed by cleats or wedges that pull the door tight against the gasket.

Position indication and interlocks

Sensors on the bridge and in the cargo control position showing door and lock status, interlocked where required with propulsion or departure checklists so the vessel cannot proceed with a door not fully closed and locked.

Selection and sizing

Opening size and location, driven by vehicle turning circles and the freeboard deck arrangement.
Design head of water the closed door and its securing must withstand at the relevant damage or intact draught.
Operating method, hydraulic ram, wire hoist or a combination, matched to available power and redundancy requirements.
Indicator and alarm integration with the vessel's existing bridge monitoring system.

Regulations and class

SOLAS Ch. II-1 sets specific structural strength, securing and indicator requirements for bow, stern and side doors on RoRo ships, following amendments introduced after major casualties involving door failures. Requirements cover positive indication of door and securing device status on the bridge, independent of the hydraulic system, plus periodic operational testing and class survey of the securing and locking arrangements. Watertight and weathertight door classifications carry different sealing and testing standards depending on the opening's position relative to the freeboard deck.

Typical faults

Fault	Consequence
Gasket perished or compressed out of shape	Loss of watertight or weathertight integrity at the seal
Locking device not fully engaged before departure	Door held only by hydraulic pressure, at risk under sea load
Position sensor misaligned or faulty	False closed indication on the bridge while the door is not secure
Hinge or hoist wire corrosion from salt exposure	Uneven closing, increased gasket wear, mechanism seizure

What to look for in a supplier

Type approval for the securing and indication system matching current SOLAS requirements, not a design predating the post-casualty amendments.
Independent, hard-wired indicator circuits separate from the hydraulic control system.
Demonstrated servicing support for gasket replacement and hydraulic component overhaul in the vessel's trading area.
Clear documentation of the design head of water the door and locks are certified to withstand.

Bridge indicator lights only report what the sensor sees, so a closed-and-locked signal is worth confirming visually at the door during the first voyages after any maintenance on the securing devices, not just trusted on the panel.

Inspector Mode Show All 48 total

4 manufacturers · 48 models

ALMAC Marine

ALMAC Marine Bow Door Small unverified

Type

Bow Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage from hoses, seals or cylinders, typically indicated by slow movement, pressure loss or visible oil leakage
Hinge, bearing or wire/chain wear from high loads and corrosion, typically indicated by jerky movement, abnormal noise or misalignment
Locking device or cleat malfunction from wear or poor adjustment, typically indicated by failed secured indication or inability to achieve full closure
Seal damage or compression loss from ageing and mechanical damage, typically indicated by water ingress or failed hose/watertightness test
Limit switch or control fault, typically indicated by incorrect open/closed indication, interlock failure or interrupted movement

Service: Inspect structural members, hinges, wires/chains, cylinders, hydraulic leaks, locking devices, seals, drainage, limit switches and indication/interlocks; verify emergency operating arrangements and test closure according to approved procedures.

Spare Parts: Carry seal sections, hydraulic hose/oring kits, limit switches, solenoid valves, locking-device wear parts and critical control components appropriate to the installed ramp or door.

Use Cases: Used on RoRo ships, RoPax vessels, ferries, vehicle carriers and multipurpose ships with vehicle-deck access. This entry applies specifically to the RoRo Door variant identified as ALMAC Marine ALMAC Marine Bow Door Small.

Datasheet

ALMAC Marine Bow Door Medium unverified

Type

Bow Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage from hoses, seals or cylinders, typically indicated by slow movement, pressure loss or visible oil leakage
Hinge, bearing or wire/chain wear from high loads and corrosion, typically indicated by jerky movement, abnormal noise or misalignment
Locking device or cleat malfunction from wear or poor adjustment, typically indicated by failed secured indication or inability to achieve full closure
Seal damage or compression loss from ageing and mechanical damage, typically indicated by water ingress or failed hose/watertightness test
Limit switch or control fault, typically indicated by incorrect open/closed indication, interlock failure or interrupted movement

Spare Parts: Carry seal sections, hydraulic hose/oring kits, limit switches, solenoid valves, locking-device wear parts and critical control components appropriate to the installed ramp or door.

Datasheet

ALMAC Marine ALMAC Marine Bow Door Large

ALMAC Marine Bow Door Large unverified

Type

Bow Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage from hoses, seals or cylinders, typically indicated by slow movement, pressure loss or visible oil leakage
Hinge, bearing or wire/chain wear from high loads and corrosion, typically indicated by jerky movement, abnormal noise or misalignment
Locking device or cleat malfunction from wear or poor adjustment, typically indicated by failed secured indication or inability to achieve full closure
Seal damage or compression loss from ageing and mechanical damage, typically indicated by water ingress or failed hose/watertightness test
Limit switch or control fault, typically indicated by incorrect open/closed indication, interlock failure or interrupted movement

Spare Parts: Carry seal sections, hydraulic hose/oring kits, limit switches, solenoid valves, locking-device wear parts and critical control components appropriate to the installed ramp or door.

Datasheet

ALMAC Marine Stern Door Small unverified

Type

Stern Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage from hoses, seals or cylinders, typically indicated by slow movement, pressure loss or visible oil leakage
Hinge, bearing or wire/chain wear from high loads and corrosion, typically indicated by jerky movement, abnormal noise or misalignment
Locking device or cleat malfunction from wear or poor adjustment, typically indicated by failed secured indication or inability to achieve full closure
Seal damage or compression loss from ageing and mechanical damage, typically indicated by water ingress or failed hose/watertightness test
Limit switch or control fault, typically indicated by incorrect open/closed indication, interlock failure or interrupted movement

Spare Parts: Carry seal sections, hydraulic hose/oring kits, limit switches, solenoid valves, locking-device wear parts and critical control components appropriate to the installed ramp or door.

Datasheet

ALMAC Marine Stern Door Medium unverified

Type

Stern Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage, cylinder wear or drive faults cause slow movement, drift or inability to open or close
Hinge, pin, wheel or bearing wear causes misalignment, abnormal noise or excessive play
Locking-device or limit-switch faults cause incomplete secure indication or blocked operating sequence
Seal damage or compression problems cause water ingress around the closed opening
Structural cracking, corrosion or deformation causes poor fit and unsafe load transfer

Service: Inspect ramp or door structure, hinges, pins, cylinders or drives, hydraulic power unit, locks, seals, limit switches and shell or deck coamings. Verify closing, securing and indication before sailing. Review structural, hose and test records and check for corrosion or deformation. Refer to manufacturer and class documentation for the exact figure for operating pressure, load, seal compression and wear limits.

Spare Parts: Carry hydraulic seals and hoses where applicable, lock and limit-switch parts, hinge or pin service items, sealing sections, fuses and control relays.

Use Cases: RoRo ferries, vehicle carriers and multipurpose cargo vessels.

Datasheet

ALMAC Marine Stern Door Large unverified

Type

Stern Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage from hoses, seals or cylinders, typically indicated by slow movement, pressure loss or visible oil leakage
Hinge, bearing or wire/chain wear from high loads and corrosion, typically indicated by jerky movement, abnormal noise or misalignment
Locking device or cleat malfunction from wear or poor adjustment, typically indicated by failed secured indication or inability to achieve full closure
Seal damage or compression loss from ageing and mechanical damage, typically indicated by water ingress or failed hose/watertightness test
Limit switch or control fault, typically indicated by incorrect open/closed indication, interlock failure or interrupted movement

Spare Parts: Carry seal sections, hydraulic hose/oring kits, limit switches, solenoid valves, locking-device wear parts and critical control components appropriate to the installed ramp or door.

Datasheet

ALMAC Marine Side Shell Door Small unverified

Type

Side Shell Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or actuator failure caused by hose, cylinder, pump or valve faults, resulting in slow, uneven or unavailable movement
Hinge, roller, bearing or pin wear caused by cyclic loading and corrosion, resulting in play, noise or misalignment
Locking-device or interlock failure caused by wear, contamination or sensor faults, resulting in inability to secure the opening or persistent alarms
Seal deterioration caused by compression set, damage or contamination, resulting in water ingress or failure of the required closing condition
Structural cracking or deformation caused by impact, overload or fatigue, resulting in visible distortion or survey findings

Service: Inspect hinges, rollers, pins, bearings, hydraulic equipment, locking devices, seals, controls, foundations and high-load structural areas. Function-test limit switches, position indication, interlocks and emergency stopping arrangements with the operating area clear. Check hydraulic hoses and cylinders or electric drives according to the installed design. Examine structural welds for corrosion, cracking or impact damage. Verify all locks are fully engaged and the required closing indication is obtained before sea passage. Refer to the manufacturer documentation for the exact figure for inspection intervals, test loads, closing criteria and wear limits.

Spare Parts: Keep seals, hydraulic hoses or cylinder service parts where applicable, limit switches, sensors, locking-device consumables, rollers, bearings and manufacturer-recommended drive components. Critical structural and locking parts must match the approved system. Heavy panels and ramp assemblies are normally strategic spares.

Use Cases: Cargo-hold and vehicle-deck access on bulk carriers, container ships, RoRo ships, ferries and other vessels fitted with powered or movable cargo-access structures.

Datasheet

ALMAC Marine Side Shell Door Medium unverified

Type

Side Shell Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage or actuator failure caused by hose, cylinder, pump or valve faults, resulting in slow, uneven or unavailable movement
Hinge, roller, bearing or pin wear caused by cyclic loading and corrosion, resulting in play, noise or misalignment
Locking-device or interlock failure caused by wear, contamination or sensor faults, resulting in inability to secure the opening or persistent alarms
Seal deterioration caused by compression set, damage or contamination, resulting in water ingress or failure of the required closing condition
Structural cracking or deformation caused by impact, overload or fatigue, resulting in visible distortion or survey findings

Use Cases: Cargo-hold and vehicle-deck access on bulk carriers, container ships, RoRo ships, ferries and other vessels fitted with powered or movable cargo-access structures.

Datasheet

ALMAC Marine Side Shell Door Large unverified

Type

Side Shell Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or actuator failure caused by hose, cylinder, pump or valve faults, resulting in slow, uneven or unavailable movement
Hinge, roller, bearing or pin wear caused by cyclic loading and corrosion, resulting in play, noise or misalignment
Locking-device or interlock failure caused by wear, contamination or sensor faults, resulting in inability to secure the opening or persistent alarms
Seal deterioration caused by compression set, damage or contamination, resulting in water ingress or failure of the required closing condition
Structural cracking or deformation caused by impact, overload or fatigue, resulting in visible distortion or survey findings

Use Cases: Cargo-hold and vehicle-deck access on bulk carriers, container ships, RoRo ships, ferries and other vessels fitted with powered or movable cargo-access structures.

Datasheet

ALMAC Marine Inner Watertight Door Small unverified

Type

Inner Watertight Door

Size

Small

Common Failures & Inspection Points

Wire-rope, chain, roller or line-contact wear caused by loaded movement, corrosion or poor lubrication, resulting in visible damage, rough operation or accelerated rope wear
Brake, locking or clutch deterioration caused by repeated loading or contamination, resulting in poor holding or excessive travel
Hydraulic or electric drive failure caused by leakage, motor faults or control problems, resulting in slow, weak or unavailable movement
Bearing, pin, hinge or structural wear caused by cyclic loading and corrosion, resulting in play, vibration, misalignment or abnormal noise
Limit, interlock or control-system fault caused by sensor, wiring or calibration problems, resulting in inhibited movement, alarms or loss of protective functions

Service: Inspect load-bearing structure, brakes, locks, ropes or chains, rollers or sheaves, pins, bearings, drives, controls and foundations as applicable. Lubricate specified points and inspect hydraulic hoses or electrical equipment according to drive type. Function-test local and remote controls, limit devices, emergency stops and interlocks using approved procedures. Examine high-load welds and line-contact areas for corrosion, cracking, deformation or sharp edges. Keep personnel clear of suspended loads and snap-back or pinch zones during tests. Refer to the manufacturer documentation for the exact figure for load tests, allowable wear, brake settings and inspection criteria.

Spare Parts: Keep brake or locking service parts, seals, bearings, hydraulic hose or valve consumables, control switches, sensors and manufacturer-recommended rope, roller or sheave wear parts. Heavy structural, gear and load-bearing components are normally strategic spares.

Use Cases: It is used for RoRo and ferry cargo access on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

ALMAC Marine Inner Watertight Door Medium unverified

Type

Inner Watertight Door

Size

Medium

Common Failures & Inspection Points

Wire-rope, chain, roller or line-contact wear caused by loaded movement, corrosion or poor lubrication, resulting in visible damage, rough operation or accelerated rope wear
Brake, locking or clutch deterioration caused by repeated loading or contamination, resulting in poor holding or excessive travel
Hydraulic or electric drive failure caused by leakage, motor faults or control problems, resulting in slow, weak or unavailable movement
Bearing, pin, hinge or structural wear caused by cyclic loading and corrosion, resulting in play, vibration, misalignment or abnormal noise
Limit, interlock or control-system fault caused by sensor, wiring or calibration problems, resulting in inhibited movement, alarms or loss of protective functions

Use Cases: It is used for RoRo and ferry cargo access on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

ALMAC Marine Inner Watertight Door Large unverified

Type

Inner Watertight Door

Size

Large

Common Failures & Inspection Points

Wire-rope, chain, roller or line-contact wear caused by loaded movement, corrosion or poor lubrication, resulting in visible damage, rough operation or accelerated rope wear
Brake, locking or clutch deterioration caused by repeated loading or contamination, resulting in poor holding or excessive travel
Hydraulic or electric drive failure caused by leakage, motor faults or control problems, resulting in slow, weak or unavailable movement
Bearing, pin, hinge or structural wear caused by cyclic loading and corrosion, resulting in play, vibration, misalignment or abnormal noise
Limit, interlock or control-system fault caused by sensor, wiring or calibration problems, resulting in inhibited movement, alarms or loss of protective functions

Use Cases: It is used for RoRo and ferry cargo access on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Damen Marine Components

Damen Marine Components Bow Door Small unverified

Type

Bow Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Service: Inspect structure, hinges, pins, bearings, cylinders, wire or chain components where fitted, seals, locks, controls and indication. Verify safe interlocks and fully secured status before sea operation. Load, wear and tightness acceptance criteria must follow approved vessel and manufacturer documentation.

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Bow Door Medium unverified

Type

Bow Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Bow Door Large unverified

Type

Bow Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Stern Door Small unverified

Type

Stern Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Stern Door Medium unverified

Type

Stern Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Stern Door Large unverified

Type

Stern Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Damen Marine Components Side Shell Door Small

Damen Marine Components Side Shell Door Small unverified

Type

Side Shell Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Damen Marine Components Side Shell Door Medium

Damen Marine Components Side Shell Door Medium unverified

Type

Side Shell Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Side Shell Door Large unverified

Type

Side Shell Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Inner Watertight Door Small unverified

Type

Inner Watertight Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Inner Watertight Door Medium unverified

Type

Inner Watertight Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

Damen Marine Components Damen Marine Components Inner Watertight Door Large

Damen Marine Components Inner Watertight Door Large unverified

Type

Inner Watertight Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or cylinder wear can cause slow or incomplete movement
Hinge, pin or bearing wear can produce misalignment, noise and uneven loading
Seal damage or distorted landing surfaces can compromise tightness, found during closure inspection or testing
Locking-device or proximity-sensor faults can prevent safe indication, seen as interlock alarms or inability to secure
Corrosion or structural damage to panels, ramps and foundations can reduce integrity, found during visual or NDT inspection

Spare Parts: Carry hydraulic seals and hoses, sensor/limit-switch parts, locking-device consumables, selected pins/bushes and maker-recommended control parts.

Use Cases: Used on RoRo cargo ships, ferries and vehicle carriers for rapid vehicle and rolling-cargo access.

Datasheet

MacGregor

MacGregor Bow Door Small

Type

Bow Door

Size

Small

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Bow Door Medium

Type

Bow Door

Size

Medium

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Bow Door Large

Type

Bow Door

Size

Large

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Stern Door Small

Type

Stern Door

Size

Small

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Stern Door Medium

Type

Stern Door

Size

Medium

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Stern Door Large

Type

Stern Door

Size

Large

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Side Shell Door Small

Type

Side Shell Door

Size

Small

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Side Shell Door Medium

Type

Side Shell Door

Size

Medium

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Side Shell Door Large

Type

Side Shell Door

Size

Large

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Inner Watertight Door Small

Type

Inner Watertight Door

Size

Small

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Inner Watertight Door Medium

Type

Inner Watertight Door

Size

Medium

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

MacGregor Inner Watertight Door Large

Type

Inner Watertight Door

Size

Large

Technical Specifications

Antriebsart: Hydraulic (double cylinder with ball bearing at ends) or electric (15–50% more efficient than hydraulic)
Decksysteme: Feste Rampen, hubbare Rampen, 4-stöckige hebbare Autodeck-Paneele (COREX Sandwichbauweise ca. 1/3 der Tiefe, 50% Gewichtseinsparung)
Zugangssysteme: Bugrüstung (Bugtüren, Liftable Bulwarks), Heck-Rampen (gerade/Viertelrampen), Seitentüren (oben/unten gehängt), innere Rampen
Dichtung: Sliding rubber seals against stainless steel compression rods; sealing force over 7 PSI N₂ pressure internally tested, to be checked annually
Verriegelung: Hydraulische Keile mit speziell konstruierten Scharnieren (Hochheben vor Öffnen für Auto-Cleats), semi-automatische Sperrmechanismen
Betriebsstandards: IMO SOLAS Reg. II-2/20 für Schiffe; monatliche systematische Kontrolle erforderlich (Scharniere, Dichtungen, Verriegelungen, Hydraulikanlage, Alarm/Anzeigen)

Product Lines

MacGregor Stern Ramps
MacGregor Bow Doors & Visors
MacGregor Side Doors
MacGregor Quarter Ramps
MacGregor Liftable Car Decks
MacGregor Hoistable Decks
TTS Electrically-Operated Equipment
Pusnes Loading Systems
Hatlapa Deck Machinery

Common Failures & Inspection Points

Area: Hydraulic cylinder corrosion and wear on piston rods
Check: Perform visual inspection for rust, pitting, scratches and unevenness on rod and cylinder body. Measure with caliper to check wear limits. Check chrome surface for gloss (gloss on one side only = bending). Check for leakage.
Area: Seal and compression rod integrity (rubber wear, water ingress)
Check: Check seal for wear, embrittlement and cracks. Check compression rods for scratches and corrosion. Perform N2 pressure test (maintain 7 PSI internally; annual inspection required). Check for water ingress in hinge area.
Area: Hinge wear, lubrication and ball bearing corrosion
Check: Inspect main and end hinges for wear, contamination and freedom of movement. Check spherical ball bearings for wear and corrosion. Perform lubrication per manufacturer specifications. Check for leakage and missing bearing pins.
Area: Hydraulic locking wedges and semi-automatic locking mechanisms (loss of function, wear)
Check: Test hydraulic wedges under pressure (movement, holding, leakage). Check lock positions and auto-cleats (lift/open function). Test manual hand pumps. Check all lock fasteners for wear and deformation.
Area: Wire ropes and supports (fatigue, fractures, wear)
Check: Perform visual inspection for wear patterns, contamination, corrosion, color loss. Check for dents, scratches, crushing, kink marks. Rotate and check for continuous fractures. Inspect regularly before and after operations. Mark replaced ropes.
Area: Weather tightness of ramp opening and bulkhead integrity
Check: Inspect rubber seal along entire bulkhead opening (wear, cracks, embrittlement). Check stainless steel compression rods for smooth surface (prevent water ingress). Detect leakage through pressure test or visual inspection (water stains). Inspect ruckling deformation of bulkhead frame.

Typ-universelle Inspektions-/Wartungspunkte fuer RoRo Equipment (MacGregor + DNV/OSHA, 2026-06). Per-Modell-Specs NICHT auto-gefuellt.

Manufacturer Datasheet

Datasheet

TTS Marine

TTS Marine Bow Door Small unverified

Type

Bow Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage, contamination or pressure loss caused by worn seals, damaged hoses or pump faults can produce slow movement, reduced force or visible oil leakage
Brake or holding-device wear caused by friction, contamination or incorrect adjustment can lead to slipping, poor holding or abnormal stopping behavior
Wire, chain, sheave, drum, bearing or pin wear caused by corrosion, overload or inadequate lubrication can show as noise, rough motion, deformation or visible damage
Limit switch, sensor or control faults caused by damaged wiring, misalignment or moisture can produce inhibited motions, nuisance trips or loss of safety functions
Structural corrosion, cracking or loose foundation fasteners caused by cyclic loading and marine exposure can appear as movement, coating breakdown or visible defects around load paths

Service: Inspect load-bearing structure, foundations, pins, sheaves, ropes or chains, brakes, hydraulic or electrical drives and all safety interlocks relevant to the installed arrangement. Check for leakage, corrosion, abnormal wear and smooth operation without bypassing protective functions. Use the maker's documentation, class rules and the vessel's lifting or maintenance records for exact limits and test loads.

Spare Parts: Typical onboard spares include seals, hose and fitting items, filters, brake consumables, limit switches, control relays, lubricants and approved rope or chain accessories as applicable to the installed machinery.

Use Cases: Cargo ships, offshore vessels, tugs, RoRo vessels, passenger ships and workboats requiring deck lifting, mooring, towing, launching or access machinery.

Datasheet

TTS Marine Bow Door Medium unverified

Type

Bow Door

Size

Medium

Common Failures & Inspection Points

Seal compression loss, damaged rubber packing, or dirty landing surfaces cause water ingress or failed hose/chalk tests
Hydraulic leakage, cylinder wear, or valve faults cause slow, uneven, or incomplete opening and closing
Hinge, wheel, bearing, cleat, chain, or locking-device wear creates misalignment, excessive play, or difficulty securing
Corrosion, cracked welds, or structural deformation can impair load carrying and correct sealing
Limit switch, interlock, indicator, or control faults cause incorrect open/closed status or prevent safe operation

Service: Inspect structure, hinges, tracks, seals, landing pads, cleats and locks, hydraulic equipment, drainage, corrosion, limit switches, alarms, and local/remote controls. Closing-force, seal compression, load testing, and structural acceptance criteria must follow class and manufacturer documentation.

Spare Parts: Keep seal and packing material, hydraulic hose and seal items, bearings or rollers, cleat or locking components, limit switches, and critical control parts suitable for the installed system.

Use Cases: Used on RoRo vessels, ferries, general cargo ships, container or multipurpose ships, and specialized cargo vessels with powered or removable cargo-access arrangements.

Datasheet

TTS Marine Bow Door Large unverified

Type

Bow Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage, contamination or pressure loss caused by worn seals, damaged hoses or pump faults can produce slow movement, reduced force or visible oil leakage
Brake or holding-device wear caused by friction, contamination or incorrect adjustment can lead to slipping, poor holding or abnormal stopping behavior
Wire, chain, sheave, drum, bearing or pin wear caused by corrosion, overload or inadequate lubrication can show as noise, rough motion, deformation or visible damage
Limit switch, sensor or control faults caused by damaged wiring, misalignment or moisture can produce inhibited motions, nuisance trips or loss of safety functions
Structural corrosion, cracking or loose foundation fasteners caused by cyclic loading and marine exposure can appear as movement, coating breakdown or visible defects around load paths

Use Cases: Cargo ships, offshore vessels, tugs, RoRo vessels, passenger ships and workboats requiring deck lifting, mooring, towing, launching or access machinery.

Datasheet

TTS Marine Stern Door Small unverified

Type

Stern Door

Size

Small

Common Failures & Inspection Points

Seal compression loss, damaged rubber packing, or dirty landing surfaces cause water ingress or failed hose/chalk tests
Hydraulic leakage, cylinder wear, or valve faults cause slow, uneven, or incomplete opening and closing
Hinge, wheel, bearing, cleat, chain, or locking-device wear creates misalignment, excessive play, or difficulty securing
Corrosion, cracked welds, or structural deformation can impair load carrying and correct sealing
Limit switch, interlock, indicator, or control faults cause incorrect open/closed status or prevent safe operation

Use Cases: Used on RoRo vessels, ferries, general cargo ships, container or multipurpose ships, and specialized cargo vessels with powered or removable cargo-access arrangements.

Datasheet

TTS Marine Stern Door Medium unverified

Type

Stern Door

Size

Medium

Common Failures & Inspection Points

Seal compression loss, damaged rubber packing, or dirty landing surfaces cause water ingress or failed hose/chalk tests
Hydraulic leakage, cylinder wear, or valve faults cause slow, uneven, or incomplete opening and closing
Hinge, wheel, bearing, cleat, chain, or locking-device wear creates misalignment, excessive play, or difficulty securing
Corrosion, cracked welds, or structural deformation can impair load carrying and correct sealing
Limit switch, interlock, indicator, or control faults cause incorrect open/closed status or prevent safe operation

Use Cases: Used on RoRo vessels, ferries, general cargo ships, container or multipurpose ships, and specialized cargo vessels with powered or removable cargo-access arrangements.

Datasheet

TTS Marine Stern Door Large unverified

Type

Stern Door

Size

Large

Common Failures & Inspection Points

Seal compression loss, damaged rubber packing, or dirty landing surfaces cause water ingress or failed hose/chalk tests
Hydraulic leakage, cylinder wear, or valve faults cause slow, uneven, or incomplete opening and closing
Hinge, wheel, bearing, cleat, chain, or locking-device wear creates misalignment, excessive play, or difficulty securing
Corrosion, cracked welds, or structural deformation can impair load carrying and correct sealing
Limit switch, interlock, indicator, or control faults cause incorrect open/closed status or prevent safe operation

Use Cases: Used on RoRo vessels, ferries, general cargo ships, container or multipurpose ships, and specialized cargo vessels with powered or removable cargo-access arrangements.

Datasheet

TTS Marine Side Shell Door Small unverified

Type

Side Shell Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage, cylinder wear or drive faults cause slow movement, drift or inability to open or close
Hinge, pin, wheel or bearing wear causes misalignment, abnormal noise or excessive play
Locking-device or limit-switch faults cause incomplete secure indication or blocked operating sequence
Seal damage or compression problems cause water ingress around the closed opening
Structural cracking, corrosion or deformation causes poor fit and unsafe load transfer

Spare Parts: Carry hydraulic seals and hoses where applicable, lock and limit-switch parts, hinge or pin service items, sealing sections, fuses and control relays.

Use Cases: RoRo ferries, vehicle carriers and multipurpose cargo vessels.

Datasheet

TTS Marine Side Shell Door Medium unverified

Type

Side Shell Door

Size

Medium

Common Failures & Inspection Points

Hydraulic leakage, cylinder wear or drive faults cause slow movement, drift or inability to open or close
Hinge, pin, wheel or bearing wear causes misalignment, abnormal noise or excessive play
Locking-device or limit-switch faults cause incomplete secure indication or blocked operating sequence
Seal damage or compression problems cause water ingress around the closed opening
Structural cracking, corrosion or deformation causes poor fit and unsafe load transfer

Spare Parts: Carry hydraulic seals and hoses where applicable, lock and limit-switch parts, hinge or pin service items, sealing sections, fuses and control relays.

Use Cases: RoRo ferries, vehicle carriers and multipurpose cargo vessels.

Datasheet

TTS Marine Side Shell Door Large unverified

Type

Side Shell Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage, cylinder wear or drive faults cause slow movement, drift or inability to open or close
Hinge, pin, wheel or bearing wear causes misalignment, abnormal noise or excessive play
Locking-device or limit-switch faults cause incomplete secure indication or blocked operating sequence
Seal damage or compression problems cause water ingress around the closed opening
Structural cracking, corrosion or deformation causes poor fit and unsafe load transfer

Spare Parts: Carry hydraulic seals and hoses where applicable, lock and limit-switch parts, hinge or pin service items, sealing sections, fuses and control relays.

Use Cases: RoRo ferries, vehicle carriers and multipurpose cargo vessels.

Datasheet

TTS Marine Inner Watertight Door Small unverified

Type

Inner Watertight Door

Size

Small

Common Failures & Inspection Points

Hydraulic leakage or actuator failure caused by hose, cylinder, pump or valve faults, resulting in slow, uneven or unavailable movement
Hinge, roller, bearing or pin wear caused by cyclic loading and corrosion, resulting in play, noise or misalignment
Locking-device or interlock failure caused by wear, contamination or sensor faults, resulting in inability to secure the opening or persistent alarms
Seal deterioration caused by compression set, damage or contamination, resulting in water ingress or failure of the required closing condition
Structural cracking or deformation caused by impact, overload or fatigue, resulting in visible distortion or survey findings

Use Cases: Cargo-hold and vehicle-deck access on bulk carriers, container ships, RoRo ships, ferries and other vessels fitted with powered or movable cargo-access structures.

Datasheet

TTS Marine Inner Watertight Door Medium unverified

Type

Inner Watertight Door

Size

Medium

Common Failures & Inspection Points

Wire-rope, chain, roller or line-contact wear caused by loaded movement, corrosion or poor lubrication, resulting in visible damage, rough operation or accelerated rope wear
Brake, locking or clutch deterioration caused by repeated loading or contamination, resulting in poor holding or excessive travel
Hydraulic or electric drive failure caused by leakage, motor faults or control problems, resulting in slow, weak or unavailable movement
Bearing, pin, hinge or structural wear caused by cyclic loading and corrosion, resulting in play, vibration, misalignment or abnormal noise
Limit, interlock or control-system fault caused by sensor, wiring or calibration problems, resulting in inhibited movement, alarms or loss of protective functions

Use Cases: It is used for RoRo and ferry cargo access on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TTS Marine Inner Watertight Door Large unverified

Type

Inner Watertight Door

Size

Large

Common Failures & Inspection Points

Hydraulic leakage or actuator failure caused by hose, cylinder, pump or valve faults, resulting in slow, uneven or unavailable movement
Hinge, roller, bearing or pin wear caused by cyclic loading and corrosion, resulting in play, noise or misalignment
Locking-device or interlock failure caused by wear, contamination or sensor faults, resulting in inability to secure the opening or persistent alarms
Seal deterioration caused by compression set, damage or contamination, resulting in water ingress or failure of the required closing condition
Structural cracking or deformation caused by impact, overload or fatigue, resulting in visible distortion or survey findings

Use Cases: Cargo-hold and vehicle-deck access on bulk carriers, container ships, RoRo ships, ferries and other vessels fitted with powered or movable cargo-access structures.

Datasheet