HTF (B) high temperature fire smoke mixed flow fan structure: into the wind noise elimination current collector, impeller (moulded conical wheel), outer barrel (spinning forming of flange and tube together), inner barrel and guide vane, high temperature of motor, cooling air duct, foot. Direct drive.

HTFC fire and ventilating cabinet centrifugal fan structure: modular framework pensu (steel or aluminum), silencing coaming (painted steel or manufacture plastic stick anechoic material), double inlet air volute centrifugal impeller vane galvanized sheet, galvanized sheet, shaft, bearing, pulley, the belt cover (belt), base, low noise motor. Belt drive.