Overhead Crane Safety Systems Remote Radio Controls

Overhead Crane Safety Systems: Remote Radio Controls

A wireless remote transmitter with a series of buttons or levers is either held by the operator or is clipped onto a harness or belt worn by the operator. The remote transmitter sends a radio signal to a receiver unit mounted on the crane. This unit transforms the signal into electrical energy and passes it on to the intermediate relay unit on the crane, and the appropriate contact is activated to then move the crane up and down the runway, move the hoist or trolley side to side, and raise or lower the hook.

The main advantage of using radio controls for an overhead crane is that it eliminates the dependence on being tethered to the crane itself—either via cab controls or pendant controls. Because the operator doesn’t have to be near the load to lift, position, or lower it, radio controls can help protect them from hazards like:

• Vapor, smoke, or chemical exposure
• Radiation
• High heat or hot metals
• High voltage or electric shock
• High humidity

Not only can the operator work on the floor safely away from hazards, but they’ll also get a better vantage point to perform the lifts effectively. The operator doesn’t necessarily have to walk with the load as it moves down the crane bay, so radio controls help keep the operator away from trip or fall hazards like obstacles on the floor, workers, and other machinery or equipment in operation. They’re also ideal for higher duty classes like D, E, or F where the crane runs up and down the runways more often, and at a faster rate.

Productivity can also be improved with better visibility—helping with faster load positioning and damage control as the operator can better judge load and clearance obstacles from the ground.

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