To limit the tendency to spin or rotate under load, rotation-resistant wire rope is a series of steel ropes. A unique twist is used in the construction of these wire ropes: the outer layer is reversely twisted from the interior layers to counteract the torsional pressures caused by the multi-layer construction.
All wire ropes are made up of at least two layers of strands in order to provide the necessary resistance to rotation and spin. When it comes to rotation resistant wire ropes, the more layers the more resistant they are. It is significantly easier to spin and rotate 2-layer ropes than 3-layer ropes, for example. 2-layer rope, however, only has a breaking strength of 55%-75% if one end is allowed to rotate freely, compared to 95%-100% for 3-layer ropes.
Our company offers three types of rotation-resistant wire ropes based on the features of each:
Normally, 2-layer spin and rotation resistant wire ropes can meet your needs of low and medium rotation resistance.
An ideal rope for huge mobiles such as tower cranes would have three layers of rope, each with a different number of outside strands.
Single-part lines are used in this application.
Whip the ropes.
Floating crane ropes.
Crane ropes for use at sea.
Pillar crane ropes, for instance.
Galvanized or bright finish.
Layout style: normal or sluggish, depending on what you need.
Plastic-coated versions are also available.
5 to 20 strands make up the outside rim.