Trolley or Crab - The 'crab' is the 'cross travel unit' from which the hook is lowered and raised. A top-running trolley on a double girder crane runs on rails.
motors used on crane hoist, bridge and trolley drives. NOTE: For lifting magnet circuit disconnect switches and rectifier power supply: Consult factory
Electric Overhead Traveling Crane: An electrically operated machine for lifting, lowering and transporting loads, consisting of a movable bridge carrying a
Manual Magnetic Disconnect Switches are used for protecting electrical crane circuits and AC sourced lifting magnet controls. The disconnect meets OHSA
If hoist has a trolley, check that the crane bridge beam or monorail beam is level, circuit closers for control of the lifting mechanism and traveling.
Mandatory inspection of all overhead lifting equipment as required by OSHA. rail but is designed for top running crane cranes and trolley travel and may
Boom (Gantry Crane): A trolley runway extension often used to obtain clearance Electric Top Running Crane: An electrically operated machine for lifting,
The overhead lifting product groups of MHI (Crane (CMAA), Hoist (HMI) and Monorail (MMA). (collectively “CHM Partners”) and the U.S. Department of Labor's
The hoisting mechanism is similar to a single girder crane with a difference that the crane doesn't have a movable bridge and the hoisting trolley runs on a
Cable festoons, conductor bars, or cable reels are used to transfer power from the building supply to the crane runway and bridge crane control panel. The same
