Provision Crane · Deck Cranes
Offshore cranes running on cargo rails enable safe, efficient cargo loading and re-positioning on deck Remote and safe operation. Cranes running on the cargo rails enable efficient cargo loading and repositioning on deck. Cranes on trolleys running the length of the PSVs cargo rails enable cargo to be hoisted on board without using mobile shore cranes. Cargo can then be placed anywhere on deck with the minimum of risk to the deck crew. Cranes can be located on one or both sides of the vessel, and as well as lifting over the side they can handle cargo over the stern if the PSV is moored stern to quay. Cargo on deck can be rearranged while in transit to recipients of goods, increasing the efficiency of the offloading process and also crew safety, as they are less exposed to hanging loads. Dual draglink design provides a very large operating work area for high performance when loading or discharging cargo. The rail crane has additional tools built-in to further increase safety. It has a load rotational stopper to remove any sway motions and it has a telescopic hoist wire stabiliser that reduces the pendulum effect from free-hanging wires. Get expert help anytime, anywhere—our global support team is available 24/7 to assist you. Upgrade your systems with tailored retrofit solutions to extend vessel life and boost performance. Explore our training programs to build skills, ensure safety, and maximize operational efficiency. Our Global Customer Support works 24/7 to provide prompt responses, technical expertise and global assistance from key locations in 32 countries. EMEA:+47 33 03 24 07APAC:+65 97 11 24 07AMERICAS:+15 04 303 5244E-mail:
| Wire rope inspection | before each period of use; detailed inspection at least every 3 months |
|---|---|
| Wire rope replacement | condition-based per discard criteria, typically every 3-5 years depending on duty |
| Hydraulic oil sampling/change | sampling every 6-12 months; change on condition or every 2-3 years |
| Annual thorough examination / load test | annually, per statutory and class requirements |
| Slew bearing bolt torque and lubrication | every 3-6 months |
| Overload protection calibration | annually |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Wire rope diameter reduction | commonly retired at around 7-10% reduction from nominal diameter, or per broken-wire discard criteria - confirm against the rope certificate and class rules |
|---|---|
| Slew bearing radial/axial play | manufacturers typically specify a maximum play tolerance in the low single-digit millimetre range for cranes of this size class - confirm against the manufacturer's data |
| Trolley wheel flange wear | monitor for uneven wear indicating rail misalignment; replace before flange thickness falls below the manufacturer's minimum |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Deck cranes handling cargo normally require an annual thorough examination and a periodic load/proof test accepted by class, plus wire rope and structural weld condition records. Keep load test certificates, wire rope inspection logs, and overload protection calibration records available for survey.
Estimated lifetime: Deck/cargo cranes of this type are generally designed for a structural service life in the range of 15,000-20,000 operating hours, subject to duty cycle and load history - confirm against the crane's design/class certificate.
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