

210x210x70mm AC Axial Fan with 6 Blades | 21070 Industrial-Grade AC Fan
Hongbo HB21070 with 6 Blades is a 210×210×70 mm AC axial fan designed for continuous cooling in control cabinets, electrical enclosures, power supplies and industrial equipment. Available in 100V, 125V, 200V, 240V, 380V and 420V configurations, it features an aluminum alloy frame, polypropylene impeller and capacitor-run induction motor for reliable long-term operation.
Key Features
- Aluminum Alloy Frame: Provides structural rigidity and resistance to deformation under sustained operation in industrial environments.
- High Airflow Output: Achieving a air flow of 419-468 CFM, suitable for applications requiring consistent and forceful air movement.
- Polypropylene Impeller: Impeller material is polypropylene, offering flame resistance and dimensional stability.
- Dual Voltage Availability: Supports 100V, 125V, 200V, 240V, 380V and 420V AC (50/60Hz), compatible with equipment across multiple regions.
- Capacitor-Run Induction Motor: Simple motor design with no brushes or commutators, reducing maintenance requirements.
- Ball Bearing Option: Ball bearing variant extends service life.
- Wide Operating Temperature: Rated for -10°C to +65°C, suitable for demanding thermal environments.
OEM Customization for 21070 with 6 Blades AC Fans
Hongbo Motor supports OEM and ODM orders. Customization options for this 210x210x70mm AC axial fan include:
- Voltage: 100V, 125V, 200V, 240V, 380V, 420V or dual-voltage configurations
- Bearing type: Ball bearing
- Lead wire: Length, gauge, and connector type adjusted to specification
- Speed grade: High, medium, or low speed variants available
- Mounting and labeling: Custom packaging, labels, and flange dimensions for OEM requirements
Contact us with your technical requirements for a tailored solution.
21070 with 6 Blades AC Fan Specifications
| Model | Bearing System | Voltage | Frequency | Current | Power | Speed | Noise | Airflow | Phase | Capacitor |
|---|---|---|---|---|---|---|---|---|---|---|
| VAC | Hz | A | W | RPM | dB(A) | CFM | μF/VAC | |||
| HB21070HA1B-C | Ball | 100/125 | 50/60 | 0.35/0.43 | 45/52 | 2550/2950 | 70/75 | 419/468 | 1 | 3.3/250 |
| HB21070HA2-C | Ball | 200/240 | 50/60 | 0.2/0.22 | 45/52 | 2550/2950 | 70/75 | 419/468 | 1 | 1/500 |
| HB21070HA3 | Ball | 380/420 | 50/60 | 0.13/0.15 | 45/58 | 2550/2950 | 70/75 | 419/468 | 3 | / |
| HB21070HA6-C | Ball | 380/420 | 50/60 | 0.11/0.13 | 45/58 | 2550/2950 | 70/75 | 419/468 | 1 | 1/500 |
Applications
This 210mm axial fan 21070 with 6 Blades is widely used in:
- Electrical control cabinets: Maintains safe operating temperatures for switchgear, PLCs, and control components.
- Industrial enclosures: Provides continuous ventilation in sealed or partially sealed housings.
- Power supply cooling: Supports thermal management in UPS systems and power conversion equipment.
- Telecommunications equipment: Used in base stations and network racks where compact, reliable fans are required.
- Refrigeration and HVAC systems: Assists in condenser and evaporator airflow within commercial refrigeration units.
- Automation and robotics systems: Keeps servo drives and motion control hardware within operating temperature limits.
Why Choose Hongbo Motor
10+ years of experience
Exported to 40+ countries
Stable production
OEM/ODM support
UL certified
Reliable quality
FAQs
Certifications and Quality Assurance
All Hongbo Motor products are manufactured in compliance with international quality and safety standards:
- UL Certification
- CE Certification
- RoHS Compliance
- 3C Certification (China Compulsory Certification)
Production follows strict in-process and outgoing quality controls at our 6,000 m² facility in Ningbo, China.
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More Details
Size:210mmx210mmx70mm
Airflow:419-468CFM
Weight:1700g
Noise:70~75dBA
Impeller:Polypropylene
Frame:Aluminum Alloy
Terminals:0.5mm
Lead Wire:AWG#24 UL 1332(Optional)
Motor:Capacitor-Run Induction Motor
Operation Temperature:- 10C~+65℃
Model Parameter
| Parameter | Value |
|---|---|
| Size | 210 × 210 × 70 mm |
| Voltage | 100V / 125V / 200V / 240V
380V/ 420V |
| Frequency | 50/60 Hz |
| Airflow | 419–468 CFM |
| Noise Level | 70–75 dBA |
| Weight | 1700 g |
| Frame Material | Aluminum alloy |
| Impeller Material | Polypropylene |
| Motor Type | Capacitor-Run Induction Motor |
| Bearing Type | Ball bearing |
| Terminal | 0.5 mm |
| Lead Wire | AWG#24 UL 1332(Optional) |
| Operating Temperature | -10°C to +65°C |
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