Two cylinders adopt the task earlier carried out by one. The outer cylinder serves exclusively for lifting and lowering. The inner-lying, second cylinder cares exclusively for safety. Both cylinders are hermetically separated from one another by two independent hydraulic circuits. Furthermore, the integrated construction of the safety device has the enormous advantage of being completely protected against external influences. Neither corrosion nor other dirt particles can damage the integrated safety device ISA-Duplex.
Safety The independence of the lifting and safety systems are guaranteed by two separate hydraulic circuits
Safety The inner-lying safety cylinder is completely protected from external influences (corrosion, pollution and mechanical damage etc.).
Safety The lifting cylinder being forced to ascend and descend together with the safety cylinder guarantees maximum operating safety all the time.
Safety The multi-cylinder as an integral component of the integrated safety device ISA-Duplex.
Safety The outer cylinder serves exclusively for lifting and lowering. The inner-lying second cylinder cares exclusively for safety.