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 waste disposal companies and workshops can be obtained
from the Siemens Service Center (Page 131).
11.5 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.
Sort the components for recycling according to whether they are:
● Iron and steel
● Aluminum
● Non-ferrous metal, e.g. windings
The winding insulation is incinerated during copper recycling.
Disposal
11.5 Disposal of components
SIMOTICS M-1PH8 1PH818., 1PH822.
Operating Instructions 07/2016 129
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