Canada 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.

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

800*800*320

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

0.37

660

16000

<55

HDF/F900

900*900*400

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

0.37

560

19000

<55

HDF/F1000

1000*1000*400

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

0.55

560

32000

<60

HDF/F1100

1100*1100*400

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

0.55

560

35000

<60

HDF/F1220

1220*1220*400

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

0.75

560

40000

<63

HDF/F1380

1380*1380*400

Galvanized iron casing

Stainless steel, 6 blades

220/380

50/60

1.1

460

48000

<65

HDF/F1530

1530*1530*400

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 modelProduct Dimensions (mm)Housing materialFan blade specificationsVoltage (V)Frequency (Hz)Power (kW/h)Rotational speed (R/M)Maximum Airflow (m³/h)Noise (dB)
BLF/F850850*850*480SMC fiberglass-reinforced plasticFiberglass 6-blade38050/600.3775020000<55
BLF/F10601060*1060*480SMC fiberglass-reinforced plasticFiberglass 6-blade38050/600.5556030000<60
BLF/F12601260*1260*560SMC fiberglass-reinforced plasticFiberglass 6-blade38050/600.7556036000<75
BLF/F14601460*1460*580SMC fiberglass-reinforced plasticFiberglass 6-blade38050/601.156043000<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 modelProduct Dimensions (mm)Housing materialFan blade specificationsVoltage (V)Frequency (Hz)Power (kWh)Rotational speed (R/M)Maximum Airflow (m³/h)Noise (dB)
BLF/F14601460*1460*580SMC fiberglass-reinforced plastic7-leaf nylon220/38050/601.146048000<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

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

 

Style A

Split-type motor controller 
Split-type motor

  • Lower noise
  • Energy-saving and highly efficient
  • Longer lifespan
  • Low speed, high torque
  • Permanent Magnet Variable-Frequency Speed Control
  • High protection rating

 

 

Style B

Smart Handheld Operator 
Integrated motor

  • Lower noise
  • Energy-saving and highly efficient
  • Longer lifespan
  • Low speed, high torque
  • Permanent Magnet Variable-Frequency Speed Control
  • Motor–electronic control integration
  • High protection rating

 

Manual control switch

  • Manual single-group control
  • Manual overall control
  • Single-group power on/off
  • Overall power on/off
  • Adjust the fan speed

Smart app remote control

  • Intelligent Single-Group Control
  • Intelligent Integrated Control
  • Independent group power on/off
  • System-wide power on/off
  • Individual fan speed adjustment
  • Overall fan speed adjustment