butterfly cone fans

Galvanized steel 120g/ sq meter, MITSUBOSHI belt, motor can be ordered
Advantage: 1. Special for henhouse, barton, pheasantry which is longer than 80 meter.
2. 10% large volume than general fan without cone.
3. 15% -20% efficiency higher
4. special butterfly design be more beautiful and money saving.

When the two semicircle shutter doors are closed, the rubber sealing ring gets good airtightness.If some fans stop running, this can avoid air pass through them, which ensures air only pass through cooling pads or air inlets. It improves 15-20% efficiency compared to those different types of same size