The unit consisting of both the hoist and the carriage frame. In situations where more than one hoist is required on one crane, hoists can be supplied on a single carriage or on separate carriages.

The crab carries the hoist across the bay along the double girder bridge, traversing the span. Again, one or more hoists can be used on one or more crabs.

The hoist is mounted to the carriage or crab, and performs the actual lifting function via a hook or lifting attachment. There are two basic types of Hoist. The first is the Wire Rope Hoist which is generally for higher capacities (over 2 Tonnes) and faster lifting speeds.

These hoists are less expensive and used for lower capacities (80Kg to 2000 Kg). They are often used on light runway systems and jib cranes.

The horizontal distance between the gantry rails.

The Pendant gives the operator precise control over the motions of the crane. There are many configurations of pendant depending on the functions of the equipment being controlled. Each pushbutton on the pendant controls an operating function of the crane. The pendant may be suspended from the Travelling Hoist, requiring the operator to walk with a [..]

The radio control performs exactly like the pendant but operates using a radio frequency. The radio control system incorporates numerous safety features and allows the operator far greater freedom to witness the operation from the best vantage point. This is often a consideration when handling hazardous loads like molten metal or chemicals.

The electrical service available in the building for which the crane is being designed (i.e 415 Volt, 3 phase, 50 Hertz).

The enclosures house all of the electrical components on the crane and need to be rated to meet the conditions in the surrounding environment.