RoRo Ramp
medium
Stern, side, and internal ramps for RoRo vessels.
Known Models (11)
Hyundai Maritime / HHI (South Korea) RoRo Ramp System
30-150 t axle load
· Vehicles / Rolling Cargo
type: Stern Ramp / Internal Ramp
size_range: ['HHI Stern Ramp', 'HHI Internal Ramp']
power_range_kw: [30, 150]
variant_count_approx: 2
period_start_year: 1990
period_end_year: None
drive_type: Hydraulic
construction: Heavy steel, hydraulic cylinders
Common Failures:
- • Hydraulic cylinder seal issues
- • Structural fatigue from high-cycle loading
- • Hinge pin wear
Service: Standard RoRo ramp maintenance.
Spares: Hyundai Maritime. Lead time: 4-8 weeks Korea.
MacGregor Stern Ramp Quarter Type
Axle load 50t
· Cargo Hold Access
· stern_quarter
type: stern_quarter
axle_load_tonnes: 50
width_m: 12
actuation: hydraulic
Common Failures:
- • Ramp hinge pin wear
- • Hydraulic cylinder seal failure
- • Ramp lip mechanism jamming
Service: Grease hinge pins weekly; test lip mechanism before every port.
Spares: MacGregor: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
MacGregor Stern Ramp Straight Type
Axle load 60t
· Cargo Hold Access
· stern_straight
type: stern_straight
axle_load_tonnes: 60
width_m: 15
Common Failures:
- • Ramp panel fatigue cracking
- • Tidal range hydraulic compensation
- • Coaming seal leak
Service: NDT ramp panels at dry-dock; ensure tidal compensation works in all conditions.
Spares: MacGregor: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
MacGregor Side Ramp SR-40
Axle load 40t
· Cargo Hold Access
· side_ramp
type: side_ramp
axle_load_tonnes: 40
Common Failures:
- • Side support wire fatigue
- • Ramp flap cylinder leak
- • Shore interface alignment
Service: Inspect support wires monthly; train crew on shore interface procedures.
Spares: MacGregor: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
MacGregor Internal Ramp IR-80
Axle load 80t
· Cargo Hold Access
· internal_hoistable
type: internal_hoistable
axle_load_tonnes: 80
Common Failures:
- • Hoisting wire fatigue
- • Panel alignment when lowered
- • Locking device wear
Service: Inspect hoisting wires monthly; test locking devices before every voyage.
Spares: MacGregor: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
MacGregor / TTS / Cargotec (Finland/Norway) Stern Ramp / Quarter Ramp
30-200 t axle load
· Vehicles / Rolling Cargo
type: Stern Ramp / Quarter Ramp (Hydraulic)
size_range: ['Stern Ramp', 'Quarter Ramp', 'Slewing Ramp']
power_range_kw: [30, 200]
variant_count_approx: 3
period_start_year: 1970
period_end_year: None
drive_type: Hydraulic
construction: Heavy steel structure, hydraulic cylinders, hinge system
Common Failures:
- • Hydraulic cylinder seal leak from heavy cycling
- • Hinge pin wear from constant loading/unloading
- • Ramp panel deformation from overweight vehicles
- • Sealing system failure causing water ingress
- • Wire rope (topping wire) fatigue on cable-operated ramps
Service: Hydraulic system check before each port call. Hinge pin lubrication monthly. Ramp panel straightness check at drydock. Wire rope inspection per schedule. Complete structural NDT at 5-year survey.
Spares: MacGregor/TTS/Cargotec. Lead time: 4-8 weeks. Hydraulic cylinders: 6-10 weeks.
MacGregor / TTS / Cargotec (Finland/Norway) Internal Ramp / Hoistable Ramp
20-100 t axle load
· Vehicles / Rolling Cargo
type: Internal Ramp / Hoistable Car Deck Ramp
size_range: ['Fixed Internal Ramp', 'Hoistable Ramp']
power_range_kw: [15, 75]
variant_count_approx: 2
period_start_year: 1975
period_end_year: None
drive_type: Hydraulic / Wire-Operated
construction: Steel panel with hydraulic/wire hoist system
Common Failures:
- • Hoisting wire rope fatigue
- • Hydraulic cylinder seal leak
- • Ramp alignment issues with adjacent decks
- • Deck support bearing wear
Service: Wire rope inspection before each voyage. Hydraulic system monthly. Alignment check at drydock.
Spares: MacGregor/TTS. Lead time: 3-6 weeks.
Rapp Marine Group (Norway) Passenger/Vehicle Ramp
10-50 t axle load
· Vehicles / Passengers
type: Bow/Stern Vehicle-Passenger Ramp
size_range: ['Small Ferry Ramp', 'Medium Ferry Ramp']
power_range_kw: [10, 50]
variant_count_approx: 2
period_start_year: 1970
period_end_year: None
drive_type: Hydraulic
construction: Steel/aluminum, hydraulic cylinders
Common Failures:
- • Hydraulic cylinder seal leak
- • Hinge mechanism wear from tidal cycling
- • Non-skid surface deterioration
- • Sealing gasket failure
Service: Hydraulic system daily check during ferry operations. Hinge lubrication weekly. Non-skid surface renewal at drydock.
Spares: Rapp Marine Bodø. Lead time: 3-6 weeks.
TTS Marine TTS Linkspan
Axle load 60t
· Cargo Hold Access
· linkspan
type: linkspan
axle_load_tonnes: 60
Common Failures:
- • Tidal compensation cylinder drift
- • Walkway handrail damage
- • Flap hinge corrosion
Service: Test tidal compensation daily; inspect handrails weekly.
Spares: TTS Marine: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
TTS Marine TTS Stern Quarter Ramp
Axle load 45t
· Cargo Hold Access
· stern_quarter
type: stern_quarter
axle_load_tonnes: 45
Common Failures:
- • Ramp door seal failure
- • Hydraulic pump overheating
- • Steering ramp mechanism wear
Service: Replace door seals at 3-year intervals.
Spares: TTS Marine: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.
TTS Marine TTS Hoistable Car Deck
Deck load 3.5t per axle
· Cargo Hold Access
· hoistable_car_deck
type: hoistable_car_deck
axle_load_tonnes: 3.5
Common Failures:
- • Hoisting chain elongation
- • Deck panel warping
- • Guide rail wear
Service: Measure chain elongation quarterly; check deck panel flatness at dry-dock.
Spares: TTS Marine: Ersatzteile per Hersteller. Lead time: 3-8 Wochen. Dichtungen und Ventileinsätze an Bord vorhalten.