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3.3.1 Chain
The chain used for EXE-Rise chain hoist is in Zinc Galvanized Steel EN DIN 818-7 (grade of steel: 80).
There are five measures in order to hoist chain of destination:
CHAIN
D8
D8+
4x12 mm
SF-8 250 kg
D8+ 150 kg
6x18 mm
SF-8 500 kg
D8+ 300 kg
8x24 mm
SF-8 1000 kg
SF-8 2000 kg
D8+ 600 kg
D8+ 1200 kg
Table 8 “Chain measures”
Figure 4
“Chain dimensions”
Each chain has specific characteristics, among them the most important are reported:
Table 9 “Chain technical data”
LEGEND:
d
n
:
nominal diameter
–
1t
: nominal pitch
– bi
min
: minimum inner width
–
ba
max
: maximum outside width
–
Gauge length
: 11t (11 links)
–
ds
max
:maximum
welding diameter
–
σ
min
: minimum stress at breaking force
–
F
min
: Minimum Breaking Force (
MBF
)
–
A
min
:minimum total ultimate elongation
–
WLL
:
max
Working Load Limit
.
Chain can be identified from the manufacturers stamped identification marks on the chain. The stamps
shown are repeated at regular intervals along the length of the chain.
Figure 5 “Chain identification”
Permittance stamp
Grade
Type
Manufacturing no.
Batch no.
CHAIN 4x12
CHAIN 6x18
CHAIN 8x24
Code
XRC032-01M
XRC0618-01M
XRC0618-01M
Weight
0.35
0.78
1.39
d
n
[mm]
132.0
198.0
264.0
1t [mm]
4.0
6.0
8.0
bi
min
[mm]
12.0
18.0
24.0
ba
max
[mm]
5.0
7.2
9.6
Gauge length
[mm]
13.7
20.2
27.0
ds
max
[mm]
4.3
6.5
8.6
σ
min
[N/mm
2
]
800
800
800
F
min
[kN]
20.1
45.2
80.4
A
min
10 %
10 %
10 %
WLL [kg]
410 kg
920
1640