Areas of application

Single-screw extruder

The single-screw extruder is suitable for all source materials that are in the form of pellets or ground stock, for the purpose of creating new pellets from these materials, which are then fed back into the original process. 

Furthermore normal pellets can be refined, for example to micropellets or to pellets that permit simple additives to be added.
 
> Single-screw extruders

Bitruder / Reitruder

Reifenhäuser offers complete pelletising and recycling lines, in combination with Bitruders/Reitruders respectively, for three different processes:
 
> Bitruder

> Reitruder

Hot pelletising

In hot die-face cutting, the round plastic strands that exit the pelletising head are cut off by a rotating knife. The rotation speed of the knife, in combination with the throughput rate, determines the length of the pellets.
The pellets are transported to the pellet cooler by an air current. Subsequently they are cooled to temperatures suitable for storage by means of flowing air, using the "fluid bed system".
The illustrated pellet line works with the described hot die-face cutting procedure. A special advantage of the Reifenhäuser system is the ease and speed with which the pelletising head (see illustration) and pellet cooler can be cooled. By constantly developing new, more modern and powerful extruders throughout the many decades of the Reifenhäuser success story, Reifenhäuser has built the foundation that ensured that the wide scope of plastic products could be established on the market. Regardless of which raw material is subjected to the thermal shaping process, regardless of which product exits the end of the production line after the process is complete: Without the appropriate extruder at the heart of the extrusion line, nothing is possible.
 
> Bitruder