Double-stage side force feeder is diffrent from standard feeder, it's more complex.

The main specification:

* Feeder power: 1.5kw, frequency conversion

* Feeder screw diameter: 20mm

* Screw L/D=10

* Screw speed： 370rpm

* Screw structure：Integral

* Up stage speed ratio I=17：1

* Down stage speed ratio I=11：1

Normally the side force feeder will be placed on the forth heating zone of the barrel(melting zone)

Video please click below picture: