9-8 Application Notes Rexroth IndraDyn A
9.8 Motor Cooling
Blower
MAD motors may be operated only with blowers. Cooling occurs using air
currents that are guided through air plates over the surface of the motor.
An axial blower is used for cooling purposes. The blower is only available
with the ”blowing” option. Observe the information in the type code.
A minimum distance between the blower screen and the machine must
be maintained to ensure that the required air volume can flow through the
blower and out of the front of the motor. See Chapter 4, "Technical Data".
The distance (2) is determined by the motor construction.
80 mm
1
2
3
MAD_Application5.EPS
(1): Machine housing
(2): Blower Exhaust
(3): Blower In-take
Fig. 9-12: MAD ventilation
⇒ Observe the air flow in the machine construction. The minimum
distance is 80 mm for all MAD motors.
⇒ The design for all blower variants is "blowing".
Contamination will reduce the performance of the blowers and can lead to
thermal overload of the motors.
When the machine is installed in an unclean environment, regularly
cleaning the blower and motor radiator fins will increase the lifetime of
your motor.
When designing the machine, take into account accessibility to
the motors and blowers for maintenance purposes.
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