Motor Directly Drive Exhaust Fan Heavy Hammer Ventilation Fan for Poultry House/Greenhouse/Industry Ventilating

DJF(k) seriesmotor-drive directly swung drop hammer exhaust fan are widely used in agriculture and industry ventilation and cooling. it is mainly used for animal husbandry, poultry house, livestock breeding, greenhouse, factory workshop, textile etc.

• 
  Fan frame material are all 275g/㎡ hot-dip galvanized steel. The steel coils are directly purchased from the famous Chinese steel company, which not only guarantees product quality but also reduces production costs.
• 
  Motor-drive blades directly type avoid the frequent problem occurred by belt (For example: belt loosing ,dropping or reversing etc.), makes a high efficiency, low fault rate.
• 
  Equipped with special high-efficiency energy-saving motor, all of which have passed CCC certification. Protection grade: IP55
  Insulation Level: F
• 
  It adopts a highly stable double-pillar design and a fixed bracket made of thick galvanized steel plate to ensure the smooth operation of the motor and fan blades.
• 
  High strength nylon swung drop hammer opening device ensures the shutters opening and closing flexibly.
• 
  1.Material: Krupp stainless steel by punch forming , no dust.
  Thickess:1.2mm
  2.Blade Rotational Speed :439rpm/min
  Diameter:1270mm
  3. Advantage: Large volume, no deformation, no broken, no rust, beautiful and durable.
• 
  Safe net is made of hot-dip galvanized wire welding and plastic spraying lieatment, double protection, no rust.
• 
  Fan blades have been calibrated by an advanced computer dynamic balance tester, low vibration, low noise and high stability.
• 
  All fan parts are produced by CNC streamlined production, quality assurance, beautiful appearance, leading the industry.