Professional Wall Mounted Shutter Axial Ventilation Exhaust Fan in Poultry Farm and Green House

Professional Wall Mounted Shutter Axial Ventilation Exhaust Fan in Poultry Farm and Green House. Durable Blade Materials: Blades made of 430 stainless steel, galvanized sheet, or aluminum alloy for no deformation and long life. Waterproof Bearing System: Imported double-row bearings with special waterproof design prevent water entry and ensure low noise. Automatic Shutter Control: Shutters open and close automatically to prevent dust entry while ensuring 90-degree open angle for low resistance. Multiple Voltage Options: Standard voltage 220V/380V with fully customized voltage options available for specific needs. Premium Motor Quality: Available with Chinese or Siemens motors featuring pure copper wire, high efficiency, and energy saving. Corrosion Resistant Frame: Frame constructed from galvanized steel and stainless steel sheets for excellent rust resistance. OEM and ODM Services: Full OEM and ODM customization available for power, size, and specific application requirements.