J&D Manufacturing’s Twister Series has been our dependable series of exhaust fans for the past 20 years. Our heavy duty 18 gauge butterfly damper that opens easily when the fan turns on, but springs closed when not operating for a good weather seal. The variable speed, high efficiency motors can be used for commercial, industrial, farm, poultry, hog, greenhouse and hobby shops. The OSHA approved grill is hinged and designed for safety and easy maintenance. Optional weather hoods available for added wind and weather protection.

When it comes to transferring electrical energy efficiently into air energy for cooling, air recirculation or air movement, J&D Manufacturing is the world leader.

J&D Manufacturing exhaust fans when applied properly can be used effectively in the following applications:

• Eliminate heat build-up inside your building
  
  
• Remove and control humidity and condensation
  
  
• Improve air quality
  
  
• Exhaust obnoxious fumes and smells
  
  

When installing any J&D Manufacturing exhaust fan you must provide a proper inlet. Give us a call to help you with a J&D Mfg approved inlet or control to go with your high performance exhaust fan. A properly designed J&D Mfg. ventilation system will give you exceptional results.

• Fan blade is constructed of aluminum with a zinc plated steel hub balanced for smooth vibration-free operation. Pitch is designed to correlate with motor horsepower to deliver maximum efficiency.
  
  
• Hinged Grill allows for easy blade cleaning and maintenance by simply removing two bolts and swinging out the fan assembly.
  
  
• 18 gauge galvanized steel butterfly shutter has adjustable, positive draft-free closure. It opens up fully for maximum CFM output. Easy accessibility for maintenance permits quick and easy removal of dirt build–up.
  
  
• Housing made of heavy duty 18 gauge tunnel design has a large venturi for maximum efficiency and air flow. Constructed of long-life galvanized steel.
  
  

• Easy installation, simply cut a hole in the wall, attach then wire.
  
  
• Attractive heavy duty combination motor mount/safety guard with bright easy-to-clean zinc-chromate finish. Conforms to OSHA safety requirements.s
  
  
• Galvanized weatherhoods available for 12", 16", 20", 24", order separately.
  
  
• Totally enclosed, maintenance free, direct drive high efficiency motors have completely sealed ball bearings, UL and ULC certification, built in automatic thermal overload protection, covered by a Full Two Year Warranty.