Polymer Processing Systems

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EDI® Dual Chamber Vacuum Boxes

Achieve better stabilization of extruded film with an EDI Dual Chamber Vacuum Box than with other web-impingement devices. 


  • Simplify cleaning, maintenance, and installation with stainless steel construction and swing-out, split chamber design



  • Pre-sweep chamber removes the entrained air between the surface of the casting roll and the film
  • Secondary chamber develops a higher vacuum that stabilizes the film forming area, reducing neck-in and controlling the movement of the film's edge
  • Various blade configurations available, including an adjustable blade located at the pre-sweep section and a blade located between the pre-sweep and primary chambers