Operation
Safety, Operation and Maintenance Manual - Sep 2012
4-66
SY115C9/135C/155H Crawler Hydraulic Excavator
hand, if the sling angle is 150 degrees, to lift a load of 19.6 kN(1000 kg), each rope has to
bear 39.2 kN(1000 kg).
3. Never use a single rope to lift an object. It
’
s better to bind the object with two or more rope
symmetrically.
Select a suitable wire rope according to the object to be lifted. See the table below.
Wire Rope
(Standard bright wire rope
“
Z
”
)
(
JISG3525
,
No.6
,
6X37-A type
)
Wire Rope
Nominal Diameter
Allowable Load
mm
kN
Ton
10
8.8
0.9
12
12.7
1.3
14
17.3
1.7
16
22.6
2.3
18
28.6
2.9
20
35.3
3.6
25
55.3
5.6
30
79.6
8.1
40
141.6
14.4
50
221.6
22.6
60
318.3
32.4
4.18.3.2 Choosing a wire rope
Note:
The allowable load equals to one sixth of the breaking force of wire rope. (Safety factor: 6)
Table 4-1