One Slow Fan Instead of Twenty Fast Ones Air mixing in a large building is a volume problem, not a velocity problem. A 7.3 m fan turning at 55 rpm moves a wide column of air slowly enough that animals feel a gentle drift rather than a draught, and it does so with one motor, one cable drop and one ...

Two Places, Short Reach, Easy Cleaning A 1.13 m trough fits the gap between a gate and a pen corner where a longer unit will not go, and gives two animals room to drink without standing on each other. For rearing pens this is often the right compromise: enough capacity for a group of calves, small ...

The Cone Is the Point A flat-plate exhaust fan pushes air into a sudden expansion at the wall and loses a good part of its performance to turbulence. A venturi cone smooths that transition, converting velocity into a controlled jet that leaves the building instead of swirling back against the ...

An Exhaust Fan That Can Be Turned Down Most agricultural exhaust fans run at one speed: full. That is fine in July and wasteful in April, when a little air movement would do and the motor still draws its rated power. This unit is built around a brushless EC motor with electronic speed control from ...