Center Of Gravity - pewag Winner pro G12 Originalbetriebsanleitung

Angles of inclination smaller than 15° are to be avoided as this can lead to a higher risk of load instability; unwanted
vibrations and load sway will further increase the stress on the chain strands causing further overloading.
If in doubt, only one chain strand should be seen as carrying and the load capacity of the lifting chain should be
reduced. Alternatively, the load capacity on the tag should be reduced by half.
Examples of asymmetry:
Figure 14: All the load is carried
by one chain leg
Edge load: It is advisable to take extra precautions on areas where the chain strand meets the load as sharp
corners on hard materials can bend or damage the chain links. Conversely, the chain strand can damage the load
due to high contact pressure. An intermediate layer such as wood blocks can reduce such damages from occurring.
For the right and/or wrong usage, take note of the following figures:
If chains are mounted around a load (e.g. support arms), the diameter needs to be a minimum 3 x the chain pitch
(inside chain link length); if using a smaller diameter, the load capacity must also be reduced by 50 %.
If chains are guided around corners without the appropriate protection then the load capacity of the chain must
also be reduced. The criteria for correct protection and the degree of reduction when using ill-fitting or no protection
is dependent on the radius of the corner – it does not matter if it is the corner of the load itself or of the corner
Figure 15: All the load is carried
by two chain legs

Center of gravity

Figure 16: The greatest tension will be
in the leg with the smallest angle to
the vertical (ß2)
E
27