Lengthening cone design,Achieve higher air draft,and stable air volume.

Frame is under advanced automatic process,Zinc of 275g/sqm makes an excellent corrosion-resistence.

Motor-drive directly type makes a high efficiency,lower fault rate.Which avoid the frequent problem occured by belt(Like belt loosen,drop,or reverse,etc.)Blades rotational speed in 960rpm/m achieve the outstanding air draft and air exchange.

Fan blade is made of Krupp stainless steel by punch forming. No dust,attractive. Special blades shape design ensure large air volume,no deformation,no broken.

Frame can be Galvanized steel,or Stainless steel.