greenhouse exhaust fan / vacuum fan:
1The outline border adopts advanced automatic process, more
accuracy, material adopt zinc coat and zinc plate.
2The aluminum metal alloy of the high strength hub, adopts aviation
aluminum magnesium metal alloy, light weight, high strength, good
tensile.
3Strap adjust automatically, no need manual adjustment during
lifetime.
4Shutter adopt special push-pull, open-close device, ensure shutter
totally open and close, windproof, rainproof and dustproof.
5Newly punch forming fan blade, reasonable angel and reach the max.
air flow, mini. Noise.
6Double bracing (E style) belt transporter, Europe industry motor
standard.
7Safety net easily tears down.
8 strictly quality test process: noise test, vibration test
.concentric performance test, fan blade turning speed test, input
air teat and vehicle efficiency test.
9Special motor hole wind shield, avoid losing wind to reach the
best wind suck effect.
10belt type B,thicker and durable ,double life time
