Cookson Non-Insulated Fire Doors: Dependable Automatic Closings for Protection

Protect property by limiting damage in case of fire. Make a building safer to occupy. Close an opening in a fire wall.

In order to limit damage caused by fire, The Cookson Company, Inc. recommends that all fire doors be actuated by smoke detectors or building alarm systems. Cookson’s Auto-Test™ Fire Door Products Systems have been specifically designed for smoke detector or building alarm actuation.


  • Governor controls automatic closing speed to 9″ to 12” per second for Auto-Test chain, crank, and motor and Simple-Test chain and crank operated doors
  • Oil tempered torsion springs designed for 50,000 life cycles
  • Structural Angle Guides and Bottom Bar make doors less vulnerable to damage that could prevent the doors from fully closing
  • Available for 4 hour, 3 hour, 1-1/2 hour and 3/4 hour ratings
  • Approved for all wall types (concrete, masonry, structural steel, structural steel with gypsum board)
  • Auto-Test Doors automatically reset to normal operation upon clearing of alarm signal and/or restoration of power
  • Simple-Test Doors are reset by replacing the fuselink
  • Auto-Test and Simple-Test Doors do not release spring tension upon activation
  • Testing doors in fully closed position will not damage mechanisms
  • FinalCote Finish Standard. ColorCote, Custom ColorCote and Stainless Steel finish available

Cookson Non-Insulated Fire Door