1. Wire rope is a machine that needs to be properly used and maintained to avoid losing strength and capability.

It WILL FAIL IF WORN OUT, OVERLOADED, MISUSED or DAMAGED.

2.The MINIMUM BREAKING STRENGTH of wire rope applies ONLY to a NEW, UNUSED rope.It should be considered the straight line pull with both rope ends fixed to prevent rotation.

3.The Design Factor will vary depending upon the type of machine and installation, and the work performed. YOU must determine the applicable Design Factor for your use.

4.Wear out The strength of a wire rope slightly increases after the break in period, but will decrease over time. When approaching the finite fatigue life span the breaking strength will sharply decrease.

5.NEVER overload a wire rope. This means NEVER use the rope where the load applied is greater than the working load determined by dividing the Minimum Breaking Strength of the rope by the appropriate Design Factor.

6.NEVER SHOCK LOAD. A sudden application of force or load can cause both visible external damage (e.g. birdcaging) and internal damage. There is no practical way to estimate the force applied by shock loading a rope.

7.Lubricant is applied to the wires and strands of a wire rope when manufactured. This lubricant is depleted when the rope is in service and should be replaced periodically.

8.Regular, periodic INSPECTIONS of the wire rope, and keeping of PERMANENT RECORDS SIGNED BY A QUALIFIED PERSON, are required. Inspection criteria, including number and location of broken wires, wear and elongation, have been established by ISO, OSHA, ANSI, ASME and other organizations.

”IF IN DOUBT, REPLACE THE ROPE”.

Photo by: Findy Chen Editor: Andy Tsai Contact: +86 180 1345 1797(Moblie/Whatsapp)