What factors need to be considered for the electrification of overhead cranes

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 components are then used to supply power across the bridge to the hoist trolley.

An operator controls the movement of the crane and hoist via push button pendants or radio remote controls. All of these components combined allow the bridge and hoist to move into position over the load. Once the load is lifted, the push button pendant or radio remote control are used to drive the bridge crane to its destination and lower the load.

Many different factors can play into selecting the appropriate electrification system for an overhead crane. During the consultation process, an overhead crane manufacturer will work with you to determine which system is best for your needs, by considering the following:

• Type of crane: bridge, gantry, monorail, jib?
• What is being powered: bridge, trolley, runway, below-the-hook device?
• Operating environment: dusty/dirty, temperature, moisture, corrosive?
• Duty cycle and usage of the crane?
• Any special considerations for access/installation, or future maintenance?

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