INSTALLATION AND OPERATING INSTRUCTIONS:
Motor spindle, HF125-002 series
Zimmer GmbH
•
Im Salmenkopf 5
•
77866 Rheinau, Germany
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+49 7844 9138 0
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+49 7844 9138 80
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www.zimmer-group.com
20
EN / 2020-11-25
DDOC00743 / -
9.7.1 Cooling duct connections
The heat created by the motor must be discharged by a suitable cooling system. The product features corresponding
internal cooling ducts.
9.7.2 Requirements for the mounting surface
INFORMATION:
The mounting surface must meet the requirements for the intended use.
Because the product is cooled using coolant, the mounting surface must be made of a suitable material.
Ö
Contact corrosion
9.7.3 Cooling unit
INFORMATION:
The cooling unit must meet the requirements for the intended use.
In order to ensure a failure-free operation of the product, the cooling unit must be sufficiently cooled.
Ö
The product must be supplied by a cooling unit with adequate cooling capability.
Ö
The cooling unit must have temperature control!
Ö
Recommended flow temperature of the product:
•
25°C, at an ambient temperature of a maximum of 35°C.
•
If the difference in temperature is greater than 10°C, condensate can form in the product.
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Too great a temperature difference can result in damage to the product.
•
At an ambient temperature above 35°C, the flow temperature must be adjusted.
•
The increase in flow temperature must be to the same extent.
9.7.4 Requirements for the cooling circuit
Properties
Units
Values
Minimum flow pressure
MPa
0.2
bar
2.0
psi
29.0
Maximum flow pressure
MPa
0.6
bar
7.0
psi
87.0
Minimum coolant fluid temperature
°C
5
Maximum coolant fluid temperature
°C
40*
Maximum temperature difference to
the ambient environment
°C (condensation water)
10
Coolant filtration
μm
<100
Minimum flow rate
l/min
2.5
Maximum flow rate
l/min
5**
* starting from 40°C, reduced performance of the motor.
** Because of a high power consumption in combination with lengthy switch-on times, the flow rate must be increased.
