SCPD

The SCPD is a continuous, counterrotating twin-screw heating and cooling processor.
It is designed for processing sticky and highly viscous materials and can be used for drying as well as for other purposes such as solvent recovery or crystallization.

The acronym SCPD stands for Self Cleaning Processor – Different Speed type. As the product name suggests, the machine is characterized by asynchronously rotating screws (rotation speed ratio 2:1) with self cleaning properties. This asynchronous rotation prevents residue formation in the feed zone of the screws and ensures uniform and efficient material processing.

Another key feature of the SCPD is the large heat transfer surface: Both screws are hollow and can be heated up with an appropriate heating medium in addition to the barrel jacket. This design enables an even and efficient heat transfer to the material which should be processed.
If required, the barrel and the screws can also be cooled down using an appropriate cooling medium.

Above the screws, an evaporation chamber is positioned along the entire length of the processor. This construction enables efficient degassing. The maximum operating temperature is 200 °C.
In the plastics industry, the SCPD is especially used for desolvation from resin dope (e.g. Epoxy, Phenol, Acryl, S-SBR), for solvent removal from waste materials (e.g. PPS and adhesives) and for crystallization processes (e.g. Epoxy and Phenol).