Gear pumps for extrusion, compounding and polymerisation. The gear pump cannot be neglected in the extrusion if you want to produce high-quality products. Despite of its simple and robust design, it is a high-precision displacement pump and convinces by its conveyance accuracy and its capacity in pressure build-up at minimum thermal material strain. Whereas the gear pump maintains a constant volumetric output and the required pressure at the tool, the pressure at the outlet of the extruder can be set to an optimal duty point.
There are some advantages of gear pumps:
1. Elimination of output variations and pressure pulsations, thus improve the product quality
2. Optimisation of the dimensional accuracy as well as of surface and optical quality with the production of films, sheets and profiles
3. Improvement of the product quality with regard to homogeneity and pellet size in the compounding
4.Saving of raw material, reduction of rejects
5. Increase of output
6. Decrease of energy consumption of the complex line
7.Conserving use of the extruder by means of process-technical shifting the task of building up pressure to the gear pump