For mounting heights up to 40′ (environmental separation) and 36′ (insect control).

The Berner Industrial Belt Drive 40 Air Curtain has a durable, all welded construction with gray powder-coated aluminized steel exterior and removable lower section for simplified access to internal components.

Used to save energy and keep temperatures stable and flying insects out when the doors are open.

  • Recommended for steel mills, coal plants, mining, airport hangers, and aircraft manufacturing
  • Engineered to perform and built to last
  • Simple to install, operate, and maintain
  • Made in U.S.A.

Berner is a UL Listed panel shop, authorized to build UL listed Motor Control Panels.


  • 39″ high x 30″ deep
  • Single-speed T.E.F.C. motor — belt drive
  • Gray powder-coated exterior (optional: custom color or stainless)
  • Split cabinet construction for fan assembly removal
  • Removable access panels
  • Top mounting only
  • High-efficiency Pro-V Nozzle
  • Motor location top right (optional: top left, front left or front right)


This model requires an Activation Switch and a Control Panel.

Control Panels

Three Phase Control Panels:

All three phase power supplies require a three phase control panel, remote (standard) or factory mounted, and an activation switch.

Standard control panel construction: NEMA 4/12 Enclosure, Motor Soft Starter (factory wired), Terminal Strip, Motor Overload (one per motor), and 120V Control Transformer

Optional control panel enclosure constructions: Poly Fiberglass, Aluminum, Stainless Steel

Control Panel Accessories

  • Door Switches: roller, plunger, or whisker arm
  • Hand/Off/Automatic Switches
  • Start/Stop Push Button(s)
  • Summer/Winter Switches
  • Summer/Off/Winter Switches
  • Disconnect Switch(es) – toggle disconnects based on number of power supplies required
  • Remote Thermostat & Locking Cover
  • Time Delay