CRANES
OVERHEAD TRAVELLING
CRANES
Many different types of overhead
crane can be designed and manufactured to suit each individual site and work application- Overhead cranes can be overslung
with the end carriage wheels running on gantry rails or underslung with the crane suspended below the beams. The downshop travel can be manual push/pull, hand geared or powered by electric motors. The same choices are available for both the hoist lifting and travel motions. Single girder cranes with a standard hoist unit are economically priced but for very high capacities or
reduced headroom it may be necessary to have double beam cranes with crab mounted hoisting units. In addition to overhead cranes, Goliath or Semi Goliath rail
mounted floor cranes can be manufactured and installed.
Crane lifting capacities are almost unlimited but the most popular models are up to 5 or 1 0 tonnes.
JIB CRANES
Both
floor and wall mounted jib cranes can be supplied with capacities up to 5 tonnes. A range of slewing angles up to 360 degrees
can be designed. Jib cranes are usualyy operated manually but for very heavy applications power slewing is available. They
can be supplied with or without hand, electric or pneumatic hoist units.
MOBILE GANTRIES
“Fixed
height mobile gantries”, standard bracing or outrigged for maximum hoist travel.
Side frames are usually of an 'A' frame configuration and support the appropriate
'1' beam for the safe working load of the gantry. A choice of castors is available, either cast iron or robust polyurethane.
Adjustable
gantries are very similar design but allow for a sliding centre extension piece within the frame.
Self-erecting
gantries provide far greater flexibility as they can easily be moved and erected in different sites.
