MAS CASCADE EXTRUDER FOR VENTING

Our melt-fed cascade extruder significantly improves the pellet quality and throughput of your entire extrusion line. The melt-fed single-screw extruder ensures highly efficient melt venting and pressure build-up for downstream (pelletizing) processes. Thanks to the large melt surface, the extruder ensures highly efficient degassing for a wide range of plastics, such as HDPE, LDPE, PP, PS, and specialty plastics. MAS vent extruders are available in three versions. Secure better melt quality and technical advantages in the high-performance range!

HOW THE VENT EXTRUDER TA WORKS

The extruders for venting are used for materials that require degassing at the end of the melting process—after the twin screw and the melt filter. The melt flow is divided into numerous smaller partial flows by the melt distribution block in the entry area of the extruder’s specially developed venting screw. This increase in surface area enables particularly efficient extraction of the melt via the three venting openings, using a vacuum system. This removes liquid, air, and impurities in a precise manner. The optimized melt flow can then be fed into further processing in the best quality.

After venting in the extruder, the single-screw extruder builds up the melt pressure necessary for the downstream pelletizing process. This relieves the pressure on the upstream extrusion and filtration processes and significantly increases the throughput and efficiency of the entire extrusion line. The result: the highest quality at all pellet levels for all conventional plastics.

VENT EXTRUDER TA IN THREE VERSIONS

To guarantee the best possible quality for individual requirements, our vent extruders are available in several versions: TA 100, TA 140, and TA 180. The number stands for the diameter of the extrusion screw (in millimeters). The venting performance is correspondingly higher or lower with the corresponding material input, as are the heating and drive power. Modifications in the area of venting and pressure build-up are available on request.

Due to their high performance and efficiency-boosting processing, vent extruders are often integrated into large extrusion lines and are part of the MAS upgrade line, which is used to improve the quality of the granulate. All options for vented screw extrusion guarantee the pure processing of HDPE, LDPE, PP, and PS, as well as various special plastics (tested on request in a material-conserving laboratory environment). The result: better performance and better quality along the entire extrusion line.

Benefits