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Qatar Negative pressure fan

HuaDa Motors employs core permanent‑magnet variable‑frequency technology, delivering superior efficiency and energy savings while intelligently adjusting speed to match environmental demands. Power‑saving rates can consistently exceed 25%. With an IP55 protection rating and Class H insulation, the motor operates reliably across a temperature range of –35°C to 65°C. Its soft‑start feature ensures safe operation, and simultaneous multi‑motor startups do not impose undue stress on the power grid. Equipped with built-in intelligent overload and overheating protection chips, it safeguards against unexpected failures and significantly extends service life.

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QatarHuada negative-pressure fan

Phone:400-888-8888

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Product Description

800mm /31in|900mm/35in |1000mm/35in
1100mm/43in 1220mm/47in | 1380mm / 47in

Product model	Product Dimensions (mm)	Housing material	Fan blade specifications	Voltage (V)	Frequency (Hz)	Power (kW/h)	Rotational speed (R/M)	Maximum Airflow (m³/h)	Noise (dB)
HDF/F800	800800320	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	0.37	660	16000	<55
HDF/F900	900900400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	0.37	560	19000	<55
HDF/F1000	10001000400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	0.55	560	32000	<60
HDF/F1100	11001100400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	0.55	560	35000	<60
HDF/F1220	12201220400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	0.75	560	40000	<63
HDF/F1380	13801380400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	1.1	460	48000	<65
HDF/F1530	15301530400	Galvanized iron casing	Stainless steel, 6 blades	220/380	50/60	1.5	460	57000	<65

Product Specifications

Comparison item	HuaDa Permanent Magnet Intelligent Negative-Pressure Fan	Traditional AC asynchronous motor fan
Number of comparisons	1 unit	1 unit
Size	1380X1380X480mm	1380X1380X480mm
Maximum airflow	40,000 m³/h	40,000 m³/h
Rotational speed	450r/min	450r/min
Actual power	1.2 kW/h	1.8 kW/h
Starting current	Smooth startup with minimal inrush current.	The startup is uneven and accompanied by vibrations, with significant current surges.
Annual electricity consumption of a single unit (24 hours/day, 300 days/year)	1 unit × 1.2 degrees/hour × 24 hours/day × 300 days/year = 8,640 degrees	1 unit × 1.8 kWh/h × 24 h/day × 300 days/year = 12,960 kWh
Annual energy savings per unit	12,960 degrees − 8,640 degrees = 4,320 degrees

Comparison between HuaDa Permanent-Magnet Intelligent Negative-Pressure Fans and Traditional AC Induction Motor Fans

850mm／33in|1060mm／42in| 1260mm/50in|1460mm/57in|

Product model	Product Dimensions (mm)	Housing material	Fan blade specifications	Voltage (V)	Frequency (Hz)	Power (kW/h)	Rotational speed (R/M)	Maximum Airflow (m³/h)	Noise (dB)
BLF/F850	850850480	SMC fiberglass-reinforced plastic	Fiberglass 6-blade	380	50/60	0.37	750	20000	<55
BLF/F1060	10601060480	SMC fiberglass-reinforced plastic	Fiberglass 6-blade	380	50/60	0.55	560	30000	<60
BLF/F1260	12601260560	SMC fiberglass-reinforced plastic	Fiberglass 6-blade	380	50/60	0.75	560	36000	<75
BLF/F1460	14601460580	SMC fiberglass-reinforced plastic	Fiberglass 6-blade	380	50/60	1.1	560	43000	<75

Product Specifications

Comparison item	HuaDa Permanent Magnet Intelligent Negative-Pressure Fan	Traditional AC asynchronous motor fan
Number of comparisons	1 unit	1 unit
Size	1460X1460X580mm	1460X1460X580mm
Maximum airflow	38,000 m³/h	38,000 m³/h
Rotational speed	560r/min	560r/min
Actual power	1.2 kW/h	1.8 kW/h
Starting current	Smooth startup with minimal inrush current.	The startup is uneven and accompanied by vibrations, with significant current surges.
Annual electricity consumption of a single unit (24 hours/day, 300 days/year)	1 unit × 1.2 degrees/hour × 24 hours/day × 300 days/year = 8,640 degrees	1 unit × 1.8 kWh/h × 24 h/day × 300 days/year = 12,960 kWh
Annual energy savings per unit	12,960 degrees − 8,640 degrees = 4,320 degrees

Comparison between HuaDa Permanent-Magnet Intelligent Negative-Pressure Fans and Traditional AC Induction Motor Fans

1460mm/57in

Product model	Product Dimensions (mm)	Housing material	Fan blade specifications	Voltage (V)	Frequency (Hz)	Power (kWh)	Rotational speed (R/M)	Maximum Airflow (m³/h)	Noise (dB)
BLF/F1460	14601460580	SMC fiberglass-reinforced plastic	7-leaf nylon	220/380	50/60	1.1	460	48000	<70

Product Specifications

Comparison item	HuaDa Permanent Magnet Intelligent Negative-Pressure Fan	Traditional AC asynchronous motor fan
Number of comparisons	1 unit	1 unit
Size	1460X1460X580mm	1460X1460X580mm
Maximum airflow	40,000 m³/h	40,000 m³/h
Rotational speed	450r/min	450r/min
Actual power	1.2 kW/h	1.8 kW/h
Starting current	Smooth startup with minimal inrush current.	The startup is uneven and accompanied by vibrations, with significant current surges.
Annual electricity consumption of a single unit (24 hours/day, 300 days/year)	1 unit × 1.2 degrees/hour × 24 hours/day × 300 days/year = 8,640 degrees	1 unit × 1.8 kWh/h × 24 h/day × 300 days/year = 12,960 kWh
Annual energy savings per unit	12,960 degrees − 8,640 degrees = 4,320 degrees