Disposing Of Permanent Magnets; Disposal Of Components - Siemens SIMOTICS DP Operating Instructions Manual

Disposal

11.7 Disposal of components

11.6

Disposing of permanent magnets

If the entire motor is melted down, no special action is required for the permanent magnets.
Remove all cables before the melting process.
Demagnetizing the motor
If the motor is disassembled and dismantled, the permanent magnets must be demagnetized.
To do this, the motor is heated up to 350 °C so that during and after disposal, the rotors do not
represent any danger. The disposal must be carried out by an authorized waste disposal
company.
Note
Removing the permanent magnet rotor
Injury and material damage can occur if the permanent magnet rotor is incorrectly removed.
Only authorized workshops and waste disposal companies are permitted to remove the rotor.
Demagnetizing the rotors
Waste disposal companies that are authorized to demagnetize rotors use a specially designed
disposal furnace. The insides of the disposal furnace consist of non-magnetic material. The
rotors are put in the furnace in a solid, heat-resistant container made of non-magnetic material
and left in the furnace during the entire demagnetization procedure. Demagnetization is
achieved by heating the rotor in the furnace until the permanent magnets have reached a
temperature of 350 °C.
NOTICE
Emissions
Exhaust gas that is released must be collected and rendered harmless without damaging the
environment.
Note
Authorized waste disposal companies
Information regarding authorized disposal companies and workshops can be obtained from
the Service Center (Page 129).
11.7 Disposal of components
Components
The machines consist mainly of steel and various proportions of copper and aluminum. Metals
are generally considered to be unlimitedly recyclable.
126
1FZ shaft height 280
Operating Instructions, 02/2022, A5E51698698A