Bell housings with oil-air heat exchange

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Bell housings are connection elements between drive motors and hydraulic pumps.
On the model with built-in oil-air cooler "PTK", the oil is cooled efficiently
by an air stream, produced by a fan wheel mounted on the motor shaft.

Technical details:

  • for electric motors from 0,55 kW (motor size 80) up to 22 kW (motor size 180L)
  • Cooling capacity up to 5 kW
  • Oil flow up to 70 l/min

Advantages for the customer:

  • The combination of noise-damping bell housing and oil-air cooler considerably simplifies the construction and reduces the cost of hydraulic systems
  • The high cooling capacity of the built-in cooler enable the user to reduce the tank capacity
  • One drive motor for hydraulic pump and fan
  • Saves space and reduces weight
  • Service friendly
  • Noise level reduction
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Hydac International