External Gear Motors, Series APM


The essential components of series APM212 external gear motors are an aluminium alloy body and two gearwheels supported by plain bearings.

The front flange can be the SAE standard, or the British or German OEM patterns.

Particular attention has been focussed on the design of the shaft seal, which is often affected by back-pressures


  • High overall efficiency thanks to optimised hydraulic compensation
  • Optimum quality/price ratio
  • Customised models can be built for specific applications
  • Low maintenance requirements, even in heavy-duty operating conditions
  • Various components and accessories are available for radial/axial loads, integral anti-cavitation valve, etc.

Technical Data

Type Effective displacement
Continuous pressure max.
Peak pressure
Speed max.
Max. output torque
Front flange options
APM212/APMR212 8.4 - 26.2 250 300 4000 70 * SAE - British - German
APM212HP/APMR212HP 15.1 - 26.2 250 300 3500 70 * SAE - British - German
APM/APMR250HP 15.2 - 54.0 300 320 3500 460 * SAE - German

* Typical value for 100 bar and the largest consumption within the frame size


  • Unidirectional  (model code APM)
  • Reversible (model code APMR)
  • With integral anti-cavitation valve
  • With outrigger bearing for axial and radial loads


  • Agricultural machines
  • Construction machinery
  • Winches
  • Harvesting machines
  • Hydraulic tools

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