Automatic poultry shed ventilation fans, industrial exhaust fan

1.Frame is hot-dip galvanized steel, thickness 1.0 mm of fan housing top, bottom, left and right. galvanized coating 180g/275g/sq meter .

2.Shutters: hot-dip galvanized steel, thickness 0.8 mm&1.0mm

3.Venturi:1.0mm 180g/m^2 hot-dip galvanized steel

1.Fan blade is made of Krupp stainless steel by punch forming,no dust,attractive and durable.Special blades shape design ensure large air volume,no deformation,no broken,keep air volume same all the way.Thickness is 1.2mm,surface finish BA grade.

2).The dysnamic balance test in 1g,low noise.

Even the LCL,we will also send you after the balance test.

Centrifugal type open mechanism can guarantee that the shutters completely open and close.Make the shutters opened to reduce resistance,increase the air flow;Close tight,can effectively prevent  the outdoor wind,light and dust from entering the house;