8.3.2 Pumps

  • Self-priming
  • Can also be used with adhesives containing abrasive fillers
  • Operating pressure up to max. 400 bar
  • Dosing quantity proportional to the speed of the piston rod
  • Heated designs available
  • Adhesive viscosity: low to high viscosity
  • Wear visible from the outside

Piston pump:

  • Self-priming
  • Slight pressure drop on reversal of movement (ca. 5 – 10%)
  • Permanent dosing
  • Can also be used with adhesives containing abrasive fillers
  • Operating pressure up to max. 400 bar
  • Dosing quantity proportional to the speed of the piston rod
  • Heated designs available
  • Adhesive viscosity: low to high viscosity
  • Wear only partially visible from the outside

Twin-action piston pump:

  • There must always (!) be pressure on the inlet side; not self-priming
  • Virtually pulsation-free adhesive application
  • Permanent dosing
  • Can also be used with adhesives containing fillers
  • Operating pressure up to max. 100 bar
  • Dosing output proportional to the drive speed
  • Heated designs available
  • Adhesive viscosity: low to high viscosity
  • Slip increases with duration of use; not detectable from outside

Gear pump: