Used melt pumps

Melt pumps: what to look for

A melt pump (gear pump) decouples the extruder from the die: it builds up steady pressure and keeps the output constant. This improves dimensional accuracy for profiles, film and filament and relieves the extruder.

When buying, consider displacement per revolution, permissible pressure and temperature, the drive and the condition of gears and bearings. We also retrofit melt pumps into existing lines.