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DMW Marine

Small Marine Cranes (Compact Deck Cranes)

DMW Marine Small Marine Cranes (Compact Deck Cranes) — Small fishing vessels, aquaculture operations, oceanographic research vessels, workboats, rescue boats.

Components & Design

Component data being added…

Technical Data

Boom Type Knuckle, telescopic, or stiff boom variants
Capacity Range Light weight, up to 255,400 ft/lbs (115,800 kg) lifting capacity
Features Remote control operation, load-monitoring sensors, space-saving foldable design
Material Aluminum and high-strength steel alloys, corrosion-resistant

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Common failures & inspection points

Corrosion and Metal Degradation

Visual inspection for corrosion along booms, slewing rings, welds, and bolts; metal cracking around welds and permanente distortions; stainless steel and flame metalized coating integrity

Safety Systems Functionality

Test load limiters (upper and lower limit stops) for reliable activation; emergency stop button responsiveness; brake functionality and clutch/sprag mechanism engagement under lateral forces

Hydraulic and Wire Systems Integrity

Visual inspection and measurement of hoses, cylinders, seals for wear; hoist wire rope and chain condition; hydraulic pressure testing; accumulator and diaphragm condition

Mechanical Component Wear

Slewing drives, brakes, clutches, and rotation mechanisms for wear and bearing condition; bolt elongation records; greasing of moving parts; quarterly/semi-annual slewing gear service intervals

Structural Integrity and Boom Condition

Non-destructive testing (NDT) of boom structure, welds, and joints; inspection for cracks, deformations, permanent distortion; evaluation of reinforced structures and oversized pins/bushings for marine side load capability

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #150129 · ✓ still in production