Semi gantry cranes are a special type of crane that combines the the design of an overhead bridge crane with that of a motorized gantry crane. A single side of semi gantry bridge is supported by an elevated runway as with an overhead. On the other end of the bridge, the crane is supported by the leg of the semi gantry with its endtruck on the floor running along either wheels or wheels with a track. In this design power is typically provided by a powerbar and collector assemblies along the elevated runway side of the semi gantry crane and distributed by a festoon system to the hoist trolley.
semi-gantry cranes are a cost-effective alternative wherever the installation of bridge cranes is impractical due to a need for a raised runway structure. They are also an ideal supplement to bridge cranes at the workstation level.
semi-gantry crane: Single-girder semi-gantry crane or Double-girder semi-gantry crane
Single-girder semi-gantry cranes with load capacities up to 12.5 tons (spans up to 98 ft.)
Double-girder semi-gantry cranes with load capacities up to 50 tons (spans up to 115 ft.)
semi-gantry crane advantages:
Saves on runway Costs
Fits under larger overhead bridge cranes without getting in the way
Great for along the wall of long clears pan buildings
Can be moved to easily access machinery and material in work area
Custom Installation Options for Semi Gantry Cranes:
Control enclosures suitable for severe environments or hazardous areas.
Multi-speed AC inverter drives.
Air-driven power drive kits.
Crane wiring with rubber covered S.O. type cable.
Crane wiring in metal conduit.
Cable reels and electrification systems.
Tag line festooning systems.
Flat wire and box track festooning systems.
Warning lights, audible alarms, or travel limit switches.
Top running and under running end trucks for single leg (semi-gantry) applications.
semi-gantry crane is an economic solution in a...