Cable guide for load suspension device on an indoor crane

Jens Göbel | 9. April 2020

Load suspension devices on an indoor crane, such as tongs, grippers, magnetic beams or other special beams sometimes require their own power and control supply. For this purpose. the cables are guided from the crane girder down to the load suspension device. In order to be able to perform the lifting movement of the load carrying device, the cables must either be wound onto a drum or, with the aid of an energy chain, safely stowed in a collecting basket.

Motor cable drum:

For such applications the motor cable drum is often used. In terms of service, however, such a cable guidance means regular maintenance work, with the consequent downtime of the crane. But what are the components that require this kind of maintenance on a motor cable drum? On the one hand such a system includes a slip ring, on the other hand either a separate drive motor or a spring system. Both drive types are used to wind the cable up or down from the drum under a constant tensile strain. The tensile strain stresses the cable(s) used and has a negative effect on the service life.

liftband:

liftband was specially developed for vertical applications on indoor cranes with a lifting height of up to 13 metres. This is a spiral-shaped energy chain which is connected at one end to the crane girder and can be deposited, for example, on a shaft end support, into a specially designed collecting basket. The straps attached to the system ensure that the energy chain remains safe in the collection basket. The system is light and requires very little installation space on the load suspension device. The cables are guided in the spiral-shaped energy chain without any tensile strain. Cables suitable for the energy chain such as chainflex are recommended for a long service life inside the chain and low downtime of the application.

Since the liftband has deliberately not used any components that require regular maintenance, the system is also almost completely maintenance-free.

No space on the load suspension device for the liftband collection basket? Then how about an e-spool? Read more in the blog post: e-spool – the alternative to cable drums on indoor cranes

On our website, you will find further examples and solutions for cable guidance on indoor cranes. You will also find our brochure for free download.

Do you still have questions or an application you would like to discuss with us? Arrange a virtual consultation appointment now