HZ Suction fan

1.Optimized by CAD/CAM, ensure the rationability of structure and the reliability of mechanisms. 2.Fan frame is processed by adopting CNC blending machine, CNC shearing machine & CNC punching machine and advanced technology. Made of extraheavy galvanized sheet or color steel sheet(red or blue), the frame has strong corrosion resistivity. 3.Unique high strength hub has better strength, tenacity & longer life than the general industrial nylon hub. 4.With automatic adjuster, the belt need not manually adjust within the service life period of belt. 5.New twisted & punched type blade, subjected to the tests of dynamic balance and static balance, ensures generation of amaximum air volume at the reasonable blade angle and a good noise control. 6.National patent aluminum alloy shutters with particular pneumatic opening & shutting mechanism, adopting the inclined belt to drive, ensure the shutters can open and shut fully to protect against wind & rain and dust. 7.The protective screen is in the rear of fan, which is easy and convenient for installation and removel.