APPLICATION REPORT | GANTRY CRANES
6.3T GANTRY FROM HOIST UK
Hoist UK supplied and commissioned a 6.3t SWL motorised steel mobile gantry for a specialist structural engineering company. The client wanted a solution that would be fully versatile and would
unloading of trucks, which the client ideally wanted to do from inside or outside the building. Due to the restrictions of the building the gantry could be no taller than 4.8 metres but needed to maintain an actual lifting height of 4 metres. It also needed to be no wider than 5 metres. Hoist UK was able to provide a motorised gantry crane that fell in
line with these constraints. The gantry was supplied with an electric chain hoist mounted on a powered travelling trolley. The hoist has dual lifting speeds of 3.2 m/min and 0.75 m/min. Trolley and hoist are controlled by a cabled push button pendant The gantry itself was also motorised and fully steerable, controlled by a safety feature: when the gantry makes contact with an object they deform, triggering safety devices that cut out the travel and will not allow the operator to continue to collide with the object. The gantry was allow the customer to use inside or outside of the building.
the travelling beam, and you run the other on a set of legs along the floor. Again, you get uninterrupted floorspace; and it is not always necessary even to have rails set into the floor. “We offer various different wheel types.
On our smaller-capacity cranes we can offer polyurethane wheels, which have a steel hub with a plasticised outer rim. You can run them directly on a concrete floor, so you don’t need any rails on the bottom level,” says Neill. Street Crane has been a pioneer in
these. They can work, he says, on cranes of capacities of around 10 tons. “It depends on the wheel loading, which in turn depends on the span of the crane and its structural weight as well as the load that it is to carry.” A typical use is in tunnel construction, marshalling the concrete lining segments or lowering sometimes-extremely-heavy machinery down access shafts. Thanks to their long bridge lengths, of up to 250 meters, the Goliath is capable of spanning large areas, such as ship-construction docks. That, with their truly massive lifting capacity – of up to 2,000t in some cases - makes them ideal shipyard cranes. As hulls and offshore platforms become increasingly larger, and the prefabricated components to be mounted on them get ever larger and heavier, the cranes too get
Q Konecranes designed and supplied the components for this gantry crane in Korea
www.hoistmagazine.com | March 2022 | 33
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