Version 4.0
14
BAL 531.01
OPERATING INSTRUCTIONS
for permanent magnetic lifting magnet
WORKHOLDING AND AUTOMATION
All persons involved in the operation, maintenance, and service of load lifting magnets must
be appropriately qualified and strictly follow these operating instructions. These operating
instructions comprise all information necessary for the safe and optimal use of the magnets. This
not only concerns the functional reliability of the magnets, but also your personal safety.
The permissible levels of exposure to DC magnetic fields are not exceeded. In case of
persons with ferromagnetic and/or active implants, it is necessary to decide individually
about their employment. Persons with cardiac pacemakers are not allowed to be within the
range of the magnetic field. Any detrimental effect on the healthy human organism is not
known to us at this time.
When using load lifting magnets, attention must be paid to the corruptive and / or destructive
effect on electronic medical devices, computes, watches, and data media.
1. Safety:
a) Notes on hazards in handling magnetic below the hook equipment:
b) Intended use:
These load lifting magnets are intended for lifting and transporting ferromagnetic flat and
cylindrical material in horizontal position. Magnets to be used individually.
The work load limits on page 16 are based on mild steel (S235 JR), a machined surface and
100 mm material thickness. The work load limits on page 16 are based on mild steel (S235 JR),
a machined surface and 100 mm material thickness.
The real holding force depends on the following factors, reason why the holding force must
be assessed before each lifting job:
-
Air gap
between magnet and workpiece because of dirt, paper, burrs, damages, paint, etc.
See Lifting guidelines and performance graphs on page 17 and 18.
-
Material thickness
of load. The thinner the load, the lower the holding force.
See Lifting guidelines on page 17.
-
Length and width
of load. The lifting capacity is influenced by the size of the steel plate.
Minimum plate size according to 1st column under „max. lifting capacity“ in table on page 17.
For smaller plates the lift capacity must be reduced according to the 2nd column. Large
steel sheets tend to sag and peel off, causing an air gap between magnet and sheet.
This peel-off effect reduces the load bearing capacity and limits the maximum sheet size
that can be lifted.
-
Material composition
. The lift capacities in the table on page 17 refer to mild steel, S235 JR
and must be derated to 90% for cast steel, 50% for stainless steel 430F, 45% for cast iron
and to 10% for nickel. For other materials please ask your supplier.
- The pole faces of the magnet must always be
completely
covered by the workpiece.
