In workshops where part utilization of shop bay is required (as in a tool room attached to a press shop), a Semi-Goliath/Gantry Crane is used. In such a configuration, one end-carriage of the crane will travel on the regular gantry rail while the opposite end-carriage will travel on a rail mounted typically on the ground or at a lower elevation.
Goliath / Gantry Cranes are self-propelled cranes running on rails installed at ground level. Such cranes are typically used at -
- Construction sites
- Workshops where existing columns cannot bear the wheel loads of a bridge crane
- Workshops with low roof tie height that might restrict the height of lift of a regular bridge crane
- Locations where bay lengths are excessive
- Locations where bay lengths do not remain constant
- Sites / projects where the crane itself needs to be relocated from one place to another
- Locations where loads are to be shifted from points outside the crane span as in the case of an overhang on either side of the rails
Precise control of the up/down motion and/or travel motion can be achieved by fitting Variable Frequency Drives in the panels (optional). Control can be either through a Pendant Push Button station or a Radio Remote Control (optional).