Extruder, Twin-screw, Small

Extruder, Twin Screw, Small


Leistritz Extrusions Technik Gmbh




Available for scheduled use. Contact Hui Wang at huiwang@iastate.edu or (515) 294-3572 for availability.

Power Specifications

Motor: Lenze, Model G, Type GFQKTA063-32
Power: 2.3 kW
Voltage/Amperage: Max. 260V/11.3A; Min. 210V/1.0A
Speed (Motor): 2950 rpm
Speed (Screws/Drive): 500 rpm


Standard Operating Procedure (PDF)

Extrusion is a method of making plastics where the raw materials (granular or pellets) are fed to the hopper and drops into the rotating screw. As the screw rotates, the material is conveyed forward through the heated barrel. The combination of shear heat and barrel heat causes the materials to melt. As the plastic reaches the end of the screw, it is now well mixed and is called a melt. Each barrel heating zone of the extruder is set to different temperatures to ensure that a good melt is produced. The plastic is then pushed out unto the die and out of the extruder. The Leistritz (Model Micro-18) is a twin-screw extruder that is typically used in small-scale compounding and extrusion processes.