Shutters: Automatic control systemcan ensure the
shutters open and close automatically, windproof ,waterproof and explosion-proof.
Motor: High-efficiencyand
energy-savingelectromotors with
protection grade :IP*5 and insulation class:F.
Belt: Automatic tensioning
devicecan prevent the belt loosing and droping off.
Bearing: High-speed
bearing,high strength, low noise and long sevice life.
Belt pulley: High-strength aluminum alloy die-casting molding
thermal.
Fan frame: Made from high-quality extra-thick galvanised steel
sheets, high strengthand
strong corrosion
resistence. Blades:Six pieces of stainleaa steel bladesbeautiful and
durable. The fan has passed the
dynamic balance test,large amout of
wind,no diatortionand
no rupture.