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 (continous) up to
bar
Operating pressure (intermittend) up to
bar
Displacement
cm³/rev
Speed max. pump
rpm
Speed max. motor
rpm
QXM2 100 - 320 125 - 400 5,1 - 15,6 4000 6000
QXM3 100 - 320 125 - 400 10 - 32,3 3200 5500
QXM4 100 - 320 125 - 400 20,3 - 63,5 2900 5000
QXM5 100 - 320 125 - 400 39,2 - 124,6 2500 4500
QXM6 100 - 320 125 - 400 80,1 - 248,8 2250 4000
QXM8 100 - 320 125 - 400 162,7 - 498,5 1600 3500

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