19x7 Classification Wire Rope (Rotation Resistant)

In an application where a single-part hoist rope is used to lift a free load – or where rotation-resistant properties are essential for rope performance – the 19x7 can be used. Its rotation-resistant characteristic is achieved by laying six strands around a core strand in one direction, then laying 12 strands around the first operation in the opposite direction. When the rope is in tension, opposing rotational forces are created between the inner and outer layers. Ropes of 19 x 7 construction require special handling, selection, and usage considerations due to their construction. They are susceptible to kinking, crushing, and unbalancing in the form of birdcages. Extreme care must be taken to avoid operational practices which can lead to these conditions. Frequent and regular inspection for broken wires is critical when using rotation resistant rope.