1) 1. Using advanced front double door opening device, small wind resistance, good sealing, high efficiency, lengthened cone design improve exhaust power.

2)
2.Galvanized steel frame is made of 180g/㎡ galvanized layer, avoid rust.

3)
3. Fan double doors closed with the rubber sealing which effectively avoid air backflow when start fans at different time. Greatly improve the operation efficiency by 15-20% compared with the same power fan.

4. Sanhe fan blade is special designed for top grade efficiency which made of Krupp stainless steel by punch forming. Large air volume, no deformation, no broken, no dust, attractive and durable. Thickness 1.2mm, surface finish BA grade.

5. Fan blades are adjusted by intelligent dynamic-balance tester, ensure the fan smooth running, lower vibration, less noise, increase stability.

6. The first adopt Type B belt which 3 times longer service life instead of type A.

7. Hot-dip galvanized blade support and safe net ensure never rust.

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

Model specifications	Diameter Blades	Air Flow	Total Pressure	Noise Decibels	Input Power	Rated Voltage	Motor Rotational Speed	Blades Rotational Speed	Height	Width	Thickness
	cm	m³ /h	pa	db	w	v	rpm	rpm	mm	mm	mm
DJF(e)-900	750	600	1400	24000	65	< = 65	370	380	900	900	930
DJF(e)-1100	1000	600	1400	36000	70	< = 65	750	380	1100	1100	1150
DJF(e)-1220	1100	460	1400	41000	73	< = 65	750	380	1220	1220	1200
DJF(e)-1250	1250	439	1400	51020	80	< = 65	1100	380	1380	1380	1300