NICA Extruder System

Principles of Operation

The NICA Extruder is a radial basket-type product with two rotors (one for the E100) that rotate within a cylindrical screen. The wet mass is gravity fed into the inner rotor — the feeder — which distributes the material into cavities between the blades on the outer rotor — the impeller. Pressure is generated in a continuous wave as these blades sweep across the inner surface of the screen. NICA extruders can be fitted with a wide range of screens with a variety of different hole diameters and wall thicknesses. Both rotors feature variable speed drives.

This allows a high degree of flexibility to optimize product compaction and extrudate consistency. The system’s patented design ensures a very low temperature increase during the extrusion process and a consistent wet mass compression into an extrudable paste. These features work together to guarantee reproducible product density throughout a batch. Product is processed in a “plug-flow” regime and hold-up at the end of a batch only amounts to a few grams.

Features

• Patented high efficiency design
• Gentle product treatment
• Low product temperature 
• Multiple screen and impeller options for production flexibility
• Product temperature monitoring
• Easy scale-up 
• Plug flow — first in, first out — with negligible product hold-up 
• Easy to dismantle and clean 
• Compact design