Elevator companies hope that the higher the fatigue resistance of wire ropes, the better. Elevator companies generally have fatigue testing machines to screen high-quality wire ropes and their manufacturers. Type test must be done to meet the requirements of safe operation of elevator when manganese phosphating coating elevator wire rope is used. High-speed elevators need steel wire ropes with excellent fatigue resistance.
Because manganese phosphating coating greatly improves the wear resistance and corrosion resistance of steel wire surface, the fatigue life of elevator steel wire rope with manganese phosphating coating is the longest, which is 3-4 times that of smooth steel wire rope, and the fatigue life of steel wire rope has made a revolutionary leap, which is an upgraded product of smooth elevator steel wire rope.