Screw Dome Extruder

1. Press wet mass through perforated plate with screw to get require-sized cylindrical extrudates 

2. Wet granulation for food, chemical and pharmaceutical products 
3. Granule size: 0.8-5 mm 
4. GMP design is available
5. Granule size is adjustable by changing perforated plate

SZL series screw dome extruder granulator is used for wet granulation, which mainly consists of drive motor, feeding hopper, extrusion screw and perforated plate. Wet mass is fed into the feeding hopper by gravity or screw. The extrusion screw (single or twin screw) transport the wet mass to the extrusion zone where it is extruded through a perforated plate to produce well formed, cylindrical extrudates of a controlled diameter. The extrudates break off by their own weight or rotary cutter and are collected for the next processing step. The diameter of extrudate is adjustable by changing perforated plate. 

SZL series screw extruding granulator has been commonly used in pharmaceutical, food and chemical industries for making granules with wet mass usually before spheronization.

Single screw

Double screw

 1. Robust,simple and compact design requires minimum maintenance;

 2. Made by SUS304 or SUS316 and mirror polished to meet GMP pharmaceutic sanitary standards.

 4. Special drive shaft sealing design can 100% make sure contamination free of product.

 5. Rotary knife cutter can be equipped to break off the extrudates for making uniform length granules 

Dismountable extruding parts

Extruding head

conical screen (0.6-3mm)

Working with rotary knife cutter