The SKB with integrated frequency inverter control for stepless lifting is new in the electric chain hoist family. This tender hoist is available as 500 kg ultimate load version with a lifting speed of 0,8–8 m/min stepless and 1.000 kg ultimate load version with a lifting speed of 0,4-4 m/min stepless.

The low speed makes a very precise handling of the load possible, especially for vacuum hoists or for example in glass industry. In particular the tender lifting and lowering without steps when switching from slow to fast lessens the movement of the load. In addition to that the stepless working process spares important ware parts of the electric chain hoist and therefore lengthens the save operating time. In reverse the maintenance costs and standstill times are reduced.