The QX pumps are the 5th generation of Bucher internal gear pumps, which have proven themselves in thirty years of service around the world. The straightforward and rugged construction guarantees long service life without the need for extensive maintenance. Tandem and multiple pumps are available worldwide in more than 1000 variants.


  • Operating pressure up to 400 bar
  • Open circle operation
  • Use with constant drive or variable-speed drive
  • Up to 70% energy saving
  • Up to 20 dB (A) quieter
  • Long service life

Technical Data


  • Plastics machinery
  • Waste compactors
  • Machine tools
  • Hydraulic presses
  • Diecasting machines
  • Lift/elevator drives
  • Hydraulic power units
  • Lift trucks