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Hammer type fan

It is mainly composed of blades, motors, racks, retainers, shelves, curtain accessories and airflow driven by motor blades. The shutter type can be automatically opened and closed after guiding the shutters according to user requirements, to prevent outdoor dust and foreign matters from entering, and to avoid the influence of rain, snow and downdraft.

Technical parameters

Model specifications		Diameter Blades (mm)		Blades Rotational speed rpm		Motor rotational Speed rpm		Air Flow (m³/h)
BEF-620		500（20’’）		1400		1400		5700
BEF-800		710（28’’）		650		1400		18000
BEF-900		750（30’’）		650		1400		20000
BEF-1000		900（36’’）		610		1400		23000
BEF-1100		1000（39’’）		600		1400		32500
BEF-1220		1100（43’’）		460		1400		38000
BEF-1380		1250（50’’）		439		1400		44000
BEF-1530		1400（55’’）		493		1400		55800
Total pressure	Noise decibles		Import power	Rated voltage	Height (mm)	Width (mm)	Thickness (mm)
55	≤60		370	380	620	620	370
75	≤60		370	380	800	800	400
60	≤60		550	380	900	900	400
70	≤60		550	380	1000	1000	400
70	≤60		750	380	1100	1100	400
73	≤60		1100	380	1220	1220	400
60	≤60		1100	380	1380	1380	400
60	≤60		1500	380	1530	1530	400

1. The outer frame material is made of thick galvanized sheet with corrosion resistance;

2. The outer frame is made by CNC machine tool with advanced technology and high precision;

3. The wheel hub is made of high-strength aluminum alloy cast steel: new twisted stamping fan blade;

4. Reasonable blade Angle can make the airflow reach the best level;

5, high precision microcomputer aided manufacturing system can make the fan to achieve the highest efficiency, strict quality testing procedures: noise test vibration performance test concentric blade speed test efficiency of the whole machine: high-performance 380V three special motors;