Products - Heavy lift mast cranes

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The Concept The design of the Huisman mast crane consists mainly of a steel mast welded to the vessel. Only the jib and masthead can rotate. Around the mast two rings are rotatable hinged:
The slewing platform, with the jib, pivots, together with the masthead with the connection of the luffing tackles. Due to the welded mast structure, the lower bearing is no longer a critical construction item.

Advantages The specific advantages of Heavy Lift Mast Cranes are:
Low construction weight in relation to load-moment Small installation area required Low center of gravity if winches are located below mast foot Vertical lashing of jib is possible Limited tail swing Slewing bearing not critical Improved safety

The Heavy Lift Mast Crane (HLMC) can be defined as a compact powerful rotating crane with very high lifting capacities. It is specially designed for use on Heavy Lift Vessels, for over sea transport of large and heavy equipment.
Most of the HLMC's are installed in a tandem configuration (see picture), sometimes one on each side, sometimes both on the same side of the vessel. The capacity, range and structure are excellent for this specialized use.

We recognize the following features:
Applicable for harbor/ sheltered water lifts Slewing range is limited to 450 degrees due to fixed position of winches below mast foot in ships hull Capacities in a range from 200 mt up to 7500 mt Load moments in a range from 3000 tm up to 200,000 tm Welded box girder or lattice type jibs Extremely small tail swing (when no operators cabin is installed)