There are usually three types of power supply sliding wires for variable frequency single beam cranes: seamless sliding wire, tubular sliding wire, and unipolar sliding wire. In recent years, seamless sliding wires have been widely used due to their convenient installation and cost-effectiveness. But seamless sliding lines also have some drawbacks. Below are the precautions for using seamless sliding lines.

Jointless sliding wire for variable frequency single beam crane

1. Not all variable frequency single beam cranes are suitable for using seamless sliding lines. If the travel of variable frequency single beam cranes is long, using seamless sliding lines will produce wavy shapes because the tensioners at both ends cannot be tightened. In this situation, it will affect the power supply and may cause the current collector to slide out of the slot, causing safety accidents. For journeys over 100 meters, it is not recommended to use seamless sliding wires. Tubular sliding wires can be used instead.

2. The seamless sliding wire slot is made of hard plastic and is not resistant to high temperatures. Long term exposure to high temperatures can lead to softening and deformation of seamless sliding lines. So it is not easy to use seamless joints under high temperature conditions or direct sunlight.

When the seamless sliding wire is damaged or needs to be extended, a sliding wire joint should be used. When using sliding wire connectors, it is necessary to ensure that the connectors and trunking are smooth, and there should be no jamming when the current collector slides over.