6×37M-IWRC

The 6×37M-IWRC is a classic "point-contact" wire rope featuring an Independent Wire Rope Core (IWRC). Although "linear-contact" wire ropes are more prevalent today, the 6×37 configuration remains indispensable in specific applications due to its exceptional flexibility.

The designation "37" indicates that each strand is composed of approximately 37 wires of identical diameter. Within the strand, the wires in different layers share the same lay angle but have different lay lengths; this causes the wires of adjacent layers to cross one another, resulting in contact occurring only at the intersection points—hence the term "point contact."

The high number of small-diameter wires makes the rope highly flexible, allowing it to easily navigate smaller sheaves or drums; it is therefore ideally suited for applications involving frequent bending and complex reeving paths. As one of the most traditional wire rope constructions, it benefits from a mature manufacturing process and relatively low procurement costs.

Nominal diameter (mm)	Approx. weight (kg/100m)	Minimum breaking force (kN)
		1570	1770	1960
8	24.4	32.1	36.1	40.0
9	30.9	40.6	45.7	50.6
10	38.1	50.1	56.5	62.5
11	46.1	60.6	68.3	75.7
12	54.9	72.1	81.3	90.0
13	64.4	84.6	95.4	106
14	74.7	98.2	111	123
16	98	128	145	160
18	123	162	183	203
20	152	200	226	250
22	184	242	273	303
24	219	288	325	360
26	258	339	382	423
28	299	393	443	490