Gantry Crane.

TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.12

Figure 4-24. Jib crane.

(2) Gantry Crane. A gantry crane consists of

(b) Mast supported-The jib is mounted

a hoisting device that rides on a horizontal beam

on a mast which is supported on top and bottom

connected to legs with wheels attached to the bottom.

supports and pivots.

Usually the wheels ride on floor mounted tracks.

Variations are possible when one of the legs is replaced

wall or column by brackets.

by a runway attached to the building or other fixed

(d) Walking-The jib is mounted on

object. Gantry cranes can be used either indoors or

heavy undercarriages which may move back and forth

outdoors and can be pendant or radio controlled.

on rails in the floor or floor and ceiling.

Applications for the gantry crane are similar to the

(e) Interlocking-A

bracket

crane

bridge crane; however, gantry cranes are more often

designed to extend the travel of a monorail hoist by

used outdoors be-' cause of the support legs (fig 4-25).

connecting the ends of adjacent jibs.

4-15