Plastic & Extrusion Line Cooling Rollers

Plastic sheet production has extensive cooling requirements. As the extruded sheet comes out of the heated chamber and die, the plastic – being a poor heat conductor – retains Most of its heat. To achieve proper cooling for plastic sheet, double shell heat transfer rolls are used to draw heat away from the hot plastic sheet. By running the hot plastic sheet in an “S” pattern through three to five chill rolls (either horizontally or vertically) The plastic sheet can be brought down to an acceptable temperature. The quality of the chill rolls will dictate the sheet thickness, texture, and gloss of the plastic sheet surface.

We address many issues with respect to engineering the correct roll for its application including deflection, fluid flow, expansion and contraction of the heat transfer roll, final geometry as well as other parameters which make up proper design and finish. Roll Technology works with your engineering and maintenance staffs to offer the following: