Steel rope

A wire rope is non-rotating or low-swivel if the rope does not or almost does not rotate about its longitudinal axis under the influence of an unguided load or exerts very little torque on the end attachments. This is achieved by the fact that in the case of non-twisting ropes, the rope core has a winding direction opposite to the rope winding direction. When a load is applied, two opposite torques are created.

A wire rope is stress-free (relaxed) if, when cut, the wires do not or almost do not pop out of the rope structure, even without tying. And also when the stretched wire rope lies neutrally and neither springs back nor stretches.

The most important decision when choosing a steel rope is: "Non-swivel steel rope or swivel steel rope?" This decision must be made very consciously and no mistakes can be made. This may result in short life of the wire rope, changes in the weave of the wire rope, uncontrolled breaking of the wire rope, etc. When lifting a load not guided in 1-rope mode, non-swivel ropes should be used. The same applies when lifting unguided loads using several steel ropes and high lifting heights. Non-swivel ropes can work with or without rope swivels.

Swivel ropes (low tension) should be used to lift guided loads. Lifting of unguided loads is carried out in the same way using several steel ropes and at low lifting heights (e.g. electric hoists). Lifting loads using pairs of clockwise and left-handed steel ropes is also carried out with steel ropes. off-handed. Swivel ropes cannot be used with rope swivels.

We will be happy to help you determine in detail the optimal design of your wire rope.