Gear Drive Dampers

Gear Drive Dampers weigh less and require less torque than certain others types of dampers, since they run on gears in order to open and close. These gears may be attached to a motor, which makes the system entirely automated. This is less work for personnel in industrial settings, since the job of opening large dampers is left up to machines.

A sensor that reads pressures and/or temperatures alerts the damper as to when and how it should adjust rather than relying on manual movement. They still require occasional checks, however, to ensure that they are working properly.

Gear Drive Damper Applications

  • Fresh Air Intake
  • Volume Control
  • Building to Building (B2B)
  • Up to 120° F

Blade Operation

  • Opposed
  • Parallel


  • Galvanized, Stainless Steel
  • 8″ Face to Face is typical, up to 24″ deep available
  • Punched or Blind Flange


  • Machined Nylon 66 g=Gears with 6061-T6 Aluminum Rack


  • Anodized 3/4″ Square 6063 Aluminum


  • UHMW

Extended Shafts

  • For Insulated Frame Only
  • Drive Side Only when Insulted Frame Required


  • Vinyl (Blade Seals)
  • Polypropylene (Jamb Seals)

Manual Actuators

  • Hand Locking Quadrant


  • Manual – Hand Quadrant, Worm Gear
  • Automatic – Electric or Pneumatic
    • 2-POS
    • Electronic Failsafe
    • Modulating

Additional Features

  • Intake Weather Hood
  • Integral Bird Screen
  • Integral Intake Louver