7-Flex® wire
ropes
We offer 7-Flex ropes for many applications that currently
use 6 x 19 or 6 x 36 classification ropes. Their operating
characteristics are similar in many ways to 6 x 36 classification
ropes. Typical applications such as container cranes, logging
portal cranes and sawmill carriages have reported increased
service life with the 7-Flex.
The 7-strand construction offers improved resistance to
bending fatigue compared to a 6 x 26 due to a combination
of the outer wire size and the seventh strand. These products
are also available in a TUF-KOTE® / PFV option to further enhance their service characteristics.
Minimum Breaking Force and weights for all 7 strand XIP® classification ropes
| Diameter
(in.) |
Approximate
wt./ft.
(lbs.) |
Minimum Breaking Force
(tons of 2000 lbs.) |
|
3/8 |
0.26 |
7.55 |
| 1/2 |
0.46 |
13.3 |
|
9/16 |
0.59 |
16.8 |
| 5/8 |
0.72 |
20.6 |
|
3/4 |
1.04 |
29.4 |
| 7/8 |
1.42 |
39.8 |
|
1 |
1.85 |
51.7 |
| 1
1/8 |
2.34 |
65.0 |
|
1
1/4 |
2.89 |
79.9 |
8 x 19 classification
Standard constructions are regular lay and either
19 Seale or 25 Filler Wire. The size relationship
between strands and core gives these ropes increased
bendability over 6 strand ropes of the same diameter.
It has less crushing resistance than a 6 strand
rope.
Minimum
Breaking Force and weights for
8 x 19 IPS classification ropes
| |
Approximate
wt./ft. (lbs.) |
Minimum Breaking Force
(tons of 2000 lbs.) |
| Diameter
(in.) |
Fiber core |
IWRC |
Fiber core |
IWRC |
| 3/16 |
0.055 |
-- |
1.33 |
-- |
| 1/4 |
0.098 |
-- |
2.35 |
-- |
| 5/16 |
0.15 |
0.18 |
3.65 |
4.01 |
| 3/8 |
0.22 |
0.26 |
5.24 |
5.76 |
| 7/16 |
0.30 |
0.36 |
7.09 |
7.80 |
| 1/2 |
0.39 |
0.47 |
9.23 |
10.1 |
| 9/16 |
0.50 |
0.60 |
11.6 |
12.8 |
| 5/8 |
0.61 |
0.73 |
14.3 |
15.7 |
| 3/4 |
0.88 |
1.06 |
20.5 |
22.5 |
| 7/8 |
1.20 |
1.44 |
27.7 |
30.5 |
| 1 |
1.57 |
1.88 |
36.0 |
39.6 |
| 1
1/8 |
1.99 |
2.39 |
45.3 |
49.8 |
| 1
1/4 |
2.45 |
2.94 |
55.7 |
61.3 |
| 1
3/8 |
2.97 |
3.56 |
67.1 |
73.8 |
| 1
1/2 |
3.53 |
4.24 |
79.4 |
87.3 |
