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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:
Table 8 “Chain measures”
Figure 5 “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 6 “Chain identification”