Lift the copper strap and the wire rope that good
The 8-12 root traction steel strip, galvanized steel wire rope is coated with a layer of polyurethane, has the advantages of greater friction between the traction wheel, lift brake is very stable, the disadvantage is that the price is extremely expensive, the broken wire after the naked eye can not identify, need special instrument inspection, general elevator users choose less.
Traction steel belt and traction steel wire rope
Elevator wire rope, moderate price, most ordinary elevator traction rope, double strength steel wire rope is the first in the outer layer, easy to find, to avoid the occurrence of rope breaking accident, weakness is likely to slip elevator. Manganese coating coating elevator wire rope, the fatigue life is 2-3 times of the smooth lift steel wire rope, already had the factory to carry on the test, the wire rope service life and the fatigue life is proportional to the relation, is only supplies the reference
