Micro-axial piston pumps AKP20

BIERI Micro-Axial piston pumps AKP20 is a very compact axial device with a high volumetric efficiency, wide speed range and increased reliability, even under rough ambient conditions.

Operating pressure up to 300 bar
Displacement volume 0,012 cm³/rev
Speed Range 100 up to 5000 rpm

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Features Advantages
High and constant volumetric efficiency on a wide speed range (100 up to 5000 rpm) Small volume flow at up to 300 bar / 4350 Psi
Continuous self lubrication and cooling through the suction flow Improved lifetime and low noise
Sturdy construction of bearings and optimal design of the suction valves Improved reliability even in rough ambient conditions (high temperature, severe vibrations) and restricted space conditions
   

Applications

  • Directional drilling in oil & gas industry
  • Ultra compact hydraulic systems
  • Systems with small volume flow rates

Design

  • Design with 3 pistons
  • Valve controlled on pressure and suction side (not usable as motor)
  • Swash shaft with large dimensioned rolling bearings
  • Rotating wobble plate
  • Submerged pump, suction side open to tank, no shaft seal
  • Small mounting dimensions

Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -20 to 175°C
Ambient temperature range -30 to 175°C
Viscosity range 3 to 220 mm²/s
Max. operating pressure 300 bar / 4350 Psi
Displacement volume 0,012 cm³/rev
Operation pressure at suction port Open to tank, no shaft seal, up to 2000 bar ambient pressure
Filtration (recommendation) According to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight See technical data sheet
Axial force onto driving shaft Not allowed
Radial force onto driving shaft Not allowed
Rotation speed range 100 up to 5000 min⁻¹
Direction of rotation Any
Material Housing: corrosion resistant steel
Pump head: high-strength steel