Turn the crane, zoom in and tap the numbered points to see what each component does — and which products and brands TMA supplies for it.
Parts of an overhead crane
The heart of the crane: motor, brake, gearbox and rope drum lift the load. Chosen by capacity, lifting height, speed and duty class (FEM / ISO).
Bottom block with rope sheaves and a forged hook with safety latch. Inspected at every visit for wear, cracks and opening of the hook.
Two box girders carry the hoist trolley across the span. Single girder cranes suit lighter loads; double girders give more capacity, span and hook height.
Wheels, travel gear motors and buffers at both ends of the bridge move the crane along the runway — smoothly with inverter (VFD) control.
Brings power to the crane along the whole runway: copper conductors in an insulated housing, with a current collector that travels with the crane.
Flat cables hang in loops from small trolleys running in a festoon track along the bridge, feeding the hoist trolley wherever it moves.
A spring or motor driven reel winds the cable in and out — for lifting magnets, grabs, gantry cranes and other moving consumers.
The operator controls every motion from a safe distance, with emergency stop and a dedicated radio channel against interference.
Geared and lever limit switches stop the hook before the top and bottom positions and the crane before the end of the runway.
Rails fixed on the runway beams carry the wheels. Correct alignment prevents wheel wear and skewing of the crane.
Planning a new crane, an upgrade or spare parts? Our engineers help you choose the right components.
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