SWF Mixed Flow Fan
SWF series industrial mixed flow ventilator adopts optimized aerodynamic design, with high efficiency, small vibration and easy installation. Perfect for air supply, exhaust and ventilation in commercial buildings, malls, factories and underground projects.
Product Overview
The SWF Mixed Flow Fan is a high-efficiency medium-pressure ventilation fan combining the advantages of axial flow fans and centrifugal fans. It delivers both large airflow capacity and relatively high air pressure, making it especially suitable for duct pressurization, air supply, exhaust ventilation, and HVAC engineering systems.
The fan adopts a direct-drive compact structure with carbon steel impeller and cylindrical casing design, ensuring stable operation, high efficiency, and long service life.
The series includes:
SWF-I Low-Speed Large Airflow Type
SWF-II High-Speed High-Pressure Type
Product Features
- Mixed Flow Structure Combines large airflow characteristics of axial fans and higher pressure performance of centrifugal fans, ideal for medium-pressure duct ventilation systems.
- Compact Direct-Drive Design Motor directly drives the impeller, reducing transmission loss and improving operational stability.
- Durable Carbon Steel Construction The entire fan structure, including impeller and turbine head, is manufactured from carbon steel with anti-corrosion surface coating.
- Straight Airflow Direction Inline airflow structure minimizes airflow resistance and improves ventilation efficiency.
- Multiple Performance Versions SWF-I: Low-speed, large airflow design SWF-II: High-speed, high-pressure design
Applications
- Industrial plants
- Commercial buildings
- Hotels and restaurants
- Museums
- Stadiums
- HVAC engineering systems
- Textile factories
- Ship ventilation systems
- High-rise building pressurization systems
- Air supply and exhaust duct systems
- Especially suitable for: Duct pressurization Air supply systems Exhaust ventilation Building smoke control systems
Working Conditions
- Conveyed medium: Non-flammable, non-explosive, non-corrosive gases
- Medium temperature: ≤ 80°C
- Dust and solid impurities: ≤ 150 mg/m³
Certifications
- CE Certification
- SASO Certification
- CB Certification
- GCC Certification
- CCC Certification
Product Structure
- Cylindrical Housing Design Compact cylindrical casing reduces airflow resistance and improves installation flexibility.
- Carbon Steel Impeller Equipped with 8 carbon steel blades for stable airflow performance and durability.
- Direct Motor Drive Compact structure with low vibration and stable operation.
- SWF-I Type Low rotational speed Large airflow Suitable for general ventilation applications
- SWF-II Type High rotational speed Higher air pressure Suitable for duct pressurization and forced air supply systems
Main Technical Parameters
SWF-I Type (Low-Speed Large Airflow)
| Model | Power (kW) | Speed (r/min) | Air Volume (m³/h) | Total Pressure (Pa) |
| SWF-I-3.5A | 0.25 | 1400 | 2045–2640 | 128–142 |
| SWF-I-4A | 0.37 | 1400 | 3053–3916 | 168–186 |
| SWF-I-4.5A | 0.55 | 1400 | 3392–4352 | 207–230 |
| SWF-I-5A | 1.1 | 1400 | 5252–7433 | 220–300 |
| SWF-I-6A | 1.5 | 1400 | 8121–10000 | 200–325 |
| SWF-I-6.5A | 2.2 | 1450 | 10325–12714 | 235–381 |
| SWF-I-7A | 3 | 1420 | 11780–15889 | 329–470 |
| SWF-I-8A | 4 | 960 | 18636–25467 | 193–382 |
| SWF-I-8.5A | 5.5 | 960 | 22353–30546 | 218–431 |
| SWF-I-9A | 5.5 | 960 | 27174–34206 | 282–430 |
| SWF-I-10A | 7.5 | 960 | 36916–44054 | 288–371 |
| SWF-I-11A | 11 | 960 | 43572–48729 | 310–370 |
| SWF-I-12A | 15 | 730 | 57226–64292 | 429–498 |
| SWF-I-13A | 15 | 730 | 63699–71565 | 441–508 |
SWF-II Type (High-Speed High-Pressure)
| Model | Power (kW) | Speed (r/min) | Air Volume (m³/h) | Total Pressure (Pa) |
| SWF-II-3.5A | 2.2 | 2850 | 4145–5599 | 920–970 |
| SWF-II-4A | 4 | 2850 | 7681–8358 | 1198–1266 |
| SWF-II-4.5A | 5.5 | 2850 | 7315–9937 | 918–1218 |
| SWF-II-5A | 5.5 | 2850 | 11058–13422 | 973–1273 |
| SWF-II-6A | 5.5 | 1450 | 11146–14099 | 722–821 |
| SWF-II-6.5A | 11 | 1450 | 14171–17925 | 848–964 |
| SWF-II-7A | 11 | 1450 | 17699–22388 | 983–1118 |
| SWF-II-8A | 7.5 | 960 | 17492–22126 | 563–640 |
| SWF-II-8.5A | 11 | 960 | 20981–26539 | 636–723 |
| SWF-II-9A | 11 | 960 | 24905–31503 | 712–810 |
| SWF-II-10A | 18.5 | 960 | 34163–43214 | 879–1000 |
| SWF-II-11A | 18.5 | 960 | 45471–57518 | 1011–1150 |
| SWF-II-12A | 22 | 960 | 62058–68359 | 1025–1184 |
| SWF-II-13A | 30 | 960 | 76280–84386 | 1030–1200 |
Installation Dimensions
- The SWF-I and SWF-II series share standardized installation dimensions and flange structures for convenient duct connection and installation compatibility.
- Available sizes 3.5A – 13A
- Standard flange mounting structure Multiple installation methods supported
Product Advantages
- Medium Pressure & High Efficiency Mixed flow structure delivers both high airflow and higher pressure performance.
- Stable Operation 8-blade carbon steel impeller with direct-drive motor ensures low vibration and reliable operation.
- Wide Model Coverage Full model range from 3.5A to 13A with dual-series configurations for different airflow and pressure requirements.
- Durable & Corrosion Resistant Carbon steel construction with anti-corrosion coating provides long service life.
- Convenient Installation Standardized flange dimensions simplify duct connection and installation.
OEM & ODM Services
- OEM manufacturing
- ODM customization
- Customized voltage and frequency
- Customized rotational speed
- Customized material selection
- Customized flange and connection design
- Private label packaging support