• The Witte Company, Inc

Dryer/Cooler Classifiers

The Witte 400 is a combination classifier with Dryer/Cooler capabilities that quickly cools plastic pellets using ambient air.

• Air Classification - almost total removal of any minus 20 mesh "fines" including those statically held as well as the removal of any "ribbons," "streamers" or "angel hairs."
• Cooling - pellets can be quickly cooled from 220 degrees F to 120 degrees using 90 degree ambient air.
• Surface Drying - residual surface moisture up to 2% can be removed using ambient air if the pellet temperature is 200 degrees F or higher. Lower pellet temperatures may require heat. Note: These units are capable of drying nylon down to 0.05% immediately after pelletizing.
• Chip Removal - any remaining larger "fines" would be removed using a wire mesh screen.
• Oversize Removal - our traditional perforated deck would, finally, remove any "oversize."

In addition, Witte now offers a combined 400 series Dewaterer/Dryer/Cooler/Classifier in a single unit. This is ideal for friable, glass filled resins or products that cannot be run on a spin dryer.
Ideal For:

• Nylon
• Polyethylene 
• Polystyrene
• Polypropylene
• Polyvinyl chloride
• Polyesters 
• Polyurethanes
• Friable, glass-filled and micropellets
• and other resins