Product Details

Our exhaust fans are widely used in agriculture and industry ventilate cooling system. Apply to: animal husbandry, poultry house, livestock breeding, greenhouse, factory workshops, textile and so on.

DJF (a) Type Swung Drop Hammer Exhaust Fan with CE Certification

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 1.2mm,surface finish BA grade.

2.Fan belt pulley is made of high strength aluminum-magnesium alloy by die-casting which reduce the weight of blade impeller complete,high corrosion resistance.Special three reinforced.

3.Both China famous motor and Siemens motor are available.Motor voltage and frequency can be customized.Chinese famous motor OEM by special design for fan,the frist put in the phase lack protection device which would power off when shortage of electricity.Motor protection grade IP55,insulation class Fgrade.

4.Fan bearing adopts imported double-row bearing with special waterproof design,water can't enter.High strength,lower noise,maintenance free and long service life.

5.Belts are Japanese Mitsubishi brand,ensure the long service life,maintenance free.

6.Using high strength nylon swung drop hammer opening device to ensure the shutters opening and closing flexible.

7.Fan blades are adjusted by intelligent dynamic-blance tester,each blade tolerance weight controlled within 1g.Ensure the fan smooth running,lower vibration,less noise,increase stability.Blade material have stainless steel,galvanized sheet,aluminum alloy,FRP for option.

8.Using the most advanced automatic belt tensioner to ensure working efficiency and good performance.

9.Complete new CNC production line improved fan quality up to top grade,aesthetic appearance.

Technical Parameter:

Model Specifications	Drive	Diametre Blades(mm)	Blades rotational speed(rpm)	Motor ratitional speed(rpm)	Air flow(m³/h)	Total pressure(pa)	Noise decibels	Input power(W)	Rated voltage(V)	Height/width(mm)	Thickness(mm)
DJF(a)-620	Direct	500	1400	1400	5700	55	≤70	250	380	620	400
DJF(a)-750	Direct	600	960	960	10600	75	≤70	370	380	750	450
DJF(a)-780	Direct	710	960	960	23000	75	≤70	750	380	780	420
DJF(a)-780-2	Belt	710	650	1400	18000	60	≤60	370	380	780	400
DJF(a)-830	Belt	720	660	1400	20000	60	≤60	370	380	830	400
DJF(a)-900	Belt	750	630	1400	22000	65	≤65	370	380	900	400
DJF(a)-1000	Belt	900	610	1400	25000	70	≤70	750	380	1000	400
DJF(a)-1100	Belt	1000	600	1400	32500	70	≤70	750	380	1100	400
DJF(a)-1220	Belt	1100	460	1400	38000	73	≤70	750	380	1220	400
DJF(a)-1380	Belt	1270	439	1400	44000	56	≤70	1100	380	1380	400
DJF(a)-1530	Belt	1400	325	1400	55800	60	≤70	1500	380	1530	400

The details of exhaust fan as follow