4. Use and maintenance manual
B01.13
San Maurizio C.se - 23/11/2018
www.omcr.it
3. USE
NOTE
ANGLE
REDUCTION FACTOR OF THE
NOMINAL CAPACITY LOAD
0°≤
β
≤40°
1
40°<
β
≤50°
0.84
50°<
β
≤60°
0.65
SYMMETRIC SLING EXAMPLE
(RECOMMENDED CONDITION)
Each lifting or handling operations must be executed by qualified and instructed worker; the
lifting, handling or turnover’ officers must use individual guard equipment.
WARNING
3.1
Before each lifting, handling or overturning officers have to choose the most suitable sling
to ensure a safe suspension with a correct load balance. A wrong sling method can modify
the real capacity load of the ropes/chains and lifting accessories. In the following table you
can verify the reduction of the nominal capacity load related to the sling angles in order to
preserve the minimum safety factor.
WARNING
3.2
3.2.1 - LIFTING
G
G
= Die load center
β
= Rope angle from vertical
NOTE:
lifting with
β
>60° is not provided
DIE AXIS
DIE AXIS
Refer to EN818-06 norm to define symmetric and asymmetric sling method: for asymmetric sling, the whole load
should be supported by only two rope/chain wings.
