The compact and durable e-spool combines the advantages of two different energy supply systems: a standard e-chain from the E2/000 series, guided by a roller, has an integrated retaining spring which ensures that the energy supply system has exactly the right length and tension at all times. The customer has the choice between three different length variants (0-4m, 4-7m and 7-14m). In the home position, the e-chain is completely rolled up to save space.
 
The twisterband connects the roller to the shaft end block, which serves ad the interface to the supply-side cables. Unlike systems where sliding contacts are used, data cables and hoses for compressed air and fluids can be guided together safely in one system.