elevator steel wire rope

Nominal Tensile Strength

Single Tensile Strength: 1570N/mm2, 1770 N/mm2
Double Tensile Strength: 1370/1770 N/mm2

We specialized in making steel wire rope for elevators.In general,wire rope with the specification of 8*19S-FC-8mm and 8*19S-10mm is available for the elevator,and 8*19S-10mm is much more frequently used.The wire ropes with the diameter of 12mm,13mm or 16mm is provided for shopping mall elevators.

a. Double steel grades.

The steel wire rope could be made with #65 and #45 steels. The tensile strength are 1370N/mm2 and 1570N/mm2.
b. Single steel grade

The steel wire rope can also apply one steel grade such as #65 steel with a breaking force of 1770N/mm2.
In any case, the wire rope should be pretension treated to improve the compactness while controlling the elongation.

Wire rope 8*19S-NF for elevator specifications
Nominal tensile strength Single strength：1570N/mm2 1770 N/mm2 Double strength：1370/1770 N/mm²
Nominal diameter( mm)	Approximate weight		Minimum breaking load of wire rope，kN
Nominal diameter( mm)	Natural fiber kg/100m	artificial fiber kg/100m	Single strength： 1570N/mm² and Double strength： 1370/1770N/mm² (1500N/mm²)	Single strength：1770N/mm²
8 10 11 13 16 19 22	22.2 34.7 42.0 58.6 88.8 125 168	21.7 33.9 41.0 57.3 86.8 122 164	28.1 44.0 53.2 74.3 113 159 213	33.2 51.9 62.8 87.6 133 187 251

The steel cable used for elevators is made with natural fiber core (NF) or synthetic fiber core(PP). The natural fiber core is sisal hemp which can well maintain the structure and mechanical properties of the steel wire rope and PP core contributes to the uniform diameter of it.Thus It is an optimal choice for high speed elevator.

The elevator steel wire rope cost less but it’s indispensable.To choose a good wire rope is of vital importance for it is also a consumable product in the elevator industry.The following factors should be taken into consideration when making choice.

a. Structure
Usually ,the elevator wire rope has 6 or 8 wire strands .And the steel wire rope will have better flexibility but lower abrasion resistance if it contains more steel wires per strand.The decision can be made according to the actual needs.

b. Tensile Strength
The wire ropes with different tensile strength are available for different elevator design .The tensile strength is proportional to the minimum breaking force.a wire rope with higher strength has higher security ,and a special technology has been developed to solve the lower fracture toughness so that a small diameter wire rope comes with higher strength and breaking force.

c.Rope core
Hemp core especially natural sisal hemp core is currently applied in the elevator wire rope .Another kind of hemp core is PP core.Except for a steel wire rope with hemp core has better flexibility, the steel cord wire rope is popular in elevator industry for a steel cord wire rope is more stable in structure and the steel cord wire rope has higher breaking force.