The basis of the “windpower hoists” is the newly developed STAHL ST 10 electric chain hoist with single-fall load chain. The ST 10 can be used for lifting loads up to 500 kg in single fall. However for the wind power stations, the ST 10 was designed with an S.W.L. of 250 kg. The hoisting speed was increased in correlation with the load reduction: STAHL CraneSystems' team of engineers calculated the high speed of 25m/min. The advantages for the operator are obvious. The design of the high performance motor ensures reduced waiting time when lifting and lowering. There is a time saving of 50 % compared with the usual speeds (approx.12m/min) – together with a corresponding reduction in the temperature rise in the motor.

Slipping clutch and hoist limit switch are two of the safety features. The chain box and the push trolley that can be locked in any position on the runway were developed especially for use in wind power stations. Further design details ensure perfect adaptation to the conditions prevalent here. Among other features, impact protection ensures that the load hook cannot damage the cladding of the tower during lifting and lowering. In test runs, the newly developed STAHL electric chain hoists displayed unbeatable performance characteristics. This was the decisive factor which prompted STAHL CraneSystems to market the ST 10 as the second generation of wind power hoists.