• PT Youtube
  • PT Facebook
  • PT Linkedin
  • PT Twitter

Novel Chill Roll Thwarts Corrosion

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Elastomer replaces metal to extend life of unit.

Related Suppliers

A new type of chill roll for cast film and sheet extrusion uses a high-grade proprietary elastomer for the outer surface of the inner shell to eliminate rusting, scaling and corrosion. On standard chill rolls, steel is typically used on the inner surface of the outer shell and on the attached spiral wrap. When this material breaks down, the roller’s ability to cool the film is reduced, as is output.

But with the Hybrid Chill Roll from Menges Roller Co., Wauconda, Ill., the outer surface of the inner shell is coated with a thick layer of the elastomer. The spiral baffle flutes that help circulate the thermal fluid are then machined to final dimensions (photo). An oxidation- and corrosion-resistant metallic compound is then applied to the interior wall of the outer shell, protecting the entire interior chamber from the damaging effects of thermal-transfer fluids, glycol, oil, and water with improper pH levels.


  • Extrusion: How Much L/D Do You Really Need?

    Just like selecting the extruder size and drive combination, the L/D should be carefully evaluated.

  • PBT & PET Polyester: Part 2 The Performance Factor

    All things being equal, PET will outperform PBT mechanically and thermally. But the processor must dry the material properly and must understand the importance of mold temperature in achieving a degree of crystallinity that allows the natural advantages of the polymer to be realized.

  • Tooling Know-How: Five Tips on Profile Die Design

    A poorly designed profile die—one that does not permit the part to be extruded with the same dimensions from run to run—coupled with a lack of understanding of the extrusion process, is a recipe for scrap generation.