The pre-wash screw has been specially designed
to discharge forein bodies in the material and
for moistening of the material with water.
This is mainly used for the recycling of film for
pre-treatment and for protection of the
The film flakes are fed through the feed hopper
into the water. Heavy particles such as glass,
sand or metals sink to the bottom of the entry zone
and are periodically discharged via 2 pneumatic valves.
The residence time of the material in
water ensures sufficient moisturing
of the film flakes.