Technical data

Rexroth IndraDyn H Notes Regarding Application 9-5
DOK-MOTOR*-MBS-H******-PR02-EN-P
Coolants
All information and technical data are based on water as the coolant. If
other coolants are used, these data no longer apply and must be
recalculated.
Cooling with running tap water is not recommended. Hard tap water can
cause deposits and damage the motor and the cooling system.
For corrosion protection and for chemical stabilization, the coolant water
must have an additive which is suitable for mixed installations with the
materials copper (cooling lines) and brass (connectors).
IndraDyn H motors can be damaged irreparably by using aggressive
coolants, additives and lubricants or by pollution of the coolant.
WARNING
Impairing the cooling effect of damaging the
cooling system!
⇒ Adjust coolant and flow to the required motor
performance data
⇒ Use systems with closed circuit and a fine filter
100 µm.
⇒ Use a corrosion protection with water as a coolant
and maintain the required ratio of mixture.
⇒ Use approved anticorrosion agents, only
⇒ Do not use cooling lubricants from machining
process
⇒ Avoid pollution of the cooling medium as well as
changes of the chemical consistency and of the pH-
value.
⇒ Do not use hard water
⇒ Use a closed cooling circuit
⇒ Adhere to the specified inlet temperatures
⇒ Do not exceed the maximum pressure
⇒ Motor operation without liquid cooling is not allowed
⇒ Heed the environmental protection and waste
disposal instructions at the place of installation when
selecting the coolant.
Note: The performance test for the used coolants and the design of
the liquid coolant system are generally the responsibility of
the machine manufacturer.
Aqueous Solution
Aqueous solutions ensure a reliable corrosion protection without
significant changes of the physical property of the water. The
recommended additives contain no materials harmful to water.
Emulsion with Corrosion Protection
Corrosion protection oils for coolant systems contain emulsifiers which
ensure a fine distribution of the oil in the water. The oily components of
the emulsion protect the metal surface of the coolant duct against