Internal Gear Unit QXM for Motor/Pump Service

Description

The QXM drive unit can be used in open- and closed-loop hydrostatic drives, and can operate both as a pump and as a motor.

The QXM works as a pump to lift the load and it can recover energy when the load is being lowered.

Used as a bi-directional pump / motor (four-quadrant operation), the unit can control the complete motion cycle of a cylinder.

Advantages

  • Up to 70% energy saving
  • Up to 20 dB (A) quieter
  • Saving valve technology
  • Operating pressure up to 400 bar
  • Open and closed circle operation
  • Use with variable-speed drives
  • 2 and 4 quadrant operation possible

Technical Data

Type Operating pressure (continuous) up to
bar
Operating pressure (intermittend) up to
bar
Displacement
cm³/rev
Speed max. pump
rpm
Speed max. motor
rpm
QXM2 250 280 5,1 - 15,9 4000 4600
QXM3 250 280 10,0 - 32,1 3200 4250
QXM4 250 280 20,3 - 64,5 2900 3900
QXM5 210 250 39,1 - 126,7 2500 3500
QXM6 250 280 79,8 - 248,4 2250 3600
QXM8 250 280 161,9 - 495,4 1600 3400

Applications

  • Injection molding machines
  • Hydraulic presses
  • Flight simulators
  • Wind-power plants
  • Lift/elevator drives
  • Winches
  • Marine industry

QXM Function

(Click on the photo for the animation)

 QXM Function
 

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