Exhaust fans
Wall-mounted negative-pressure exhaust fans for poultry houses and swine barns. Box, hammer-shutter, and cone types.
Exhaust fan details
What we supply
Tunnel ventilation — pad and fan system
Exhaust fans, evaporative pads, and light traps quoted as one design for poultry houses and swine barns. Dark-out houses need traps on both ends.
Cooling pads
Cellulose evaporative media, frames, and water distribution for the inlet wall. Pad area is matched to fan capacity so contact time stays in range.
Pad details
Light traps
Air passages that block daylight at fans and inlets. Required in breeder, layer, and other dark-out houses that run a lighting program.
Trap details
Tunnel ventilation system
Tunnel ventilation: exhaust fans, cooling pads, and light traps specified as one pad-and-fan system.
System detailsCattle barn fans
Cattle barn fans
Box fans for cattle and dairy barns — hanging or aisle-mounted. Quoted to barn size, stocking, and power. Not a poultry-house tunnel-wall exhaust kit.
Cattle fan detailsHow tunnel climate is specified
Start from the house, not from a catalog page.
A working tunnel system is a pressure path: inlet area, pad resistance, house tightness, and fan capacity have to add up. Under-sized pad area raises static pressure and cuts fan output. Over-speed through the pad wastes water and wets the house. Light traps add resistance that must be in the fan selection, not added later.
Send house dimensions, bird or livestock type, stocking, local design temperature and humidity, and available voltage. We reply with a practical equipment list and a quotation.
AirspeedTunnel cooling depends on velocity along the birds or animals, not on mixing fans alone.
Pad face velocityPad area is set so air has contact time to evaporate without choking the fans.
Light disciplineDark-out houses need traps on every daylight opening, including the fan wall.
Who this site is for
Integrators, distributors, and farm operators.
Farm operators
Replace a fan wall, add pad cooling, or close a light leak on an existing house. Tell us what is already installed.
Builders and integrators
Match fans, pads, and traps to a house drawing. We quote configurations, not a single universal kit.
Distributors
Line-card inquiries for tunnel climate hardware. Contact us by email with target markets and volume.