Rope Lay & Direction Type
Steel wire ropes are regularly referred to as being left or right hand lay and being ordinary/ regular or Lang’s. More recently the direction and type of rope lay has been referred to using a combination of the letters S and Z, which has been new to some rope users. The direction and type of lay is an important feature of any stranded wire rope and determines key rope characteristics e.g. fatigue, wear, crush resistance, etc. and can affect the safety of the different ropes in-service. This bulletin aims to provide background information to support the user when selecting a type of rope lay for an application.
