SF Series Axial Flow Fans feature a smooth streamlined surface, offering advantages such as stable operation, high efficiency, low noise, and low energy consumption. The SF series fans are classified into three types by usage requirements: duct type, fixed type, and post type, and divided into 12 models by impeller diameter.
This series of products is widely applied in wall-mounted exhaust for industrial and mining enterprises and civil buildings, post-type air supply, and duct ventilation. It is also used in ventilation and air conditioning systems for workplaces and warehouses in chemical, light industry, food, medicine, metallurgy, power stations, transportation, and other sectors.
| Core Technical Parameters | ||||||
| Model | Power (kW) |
Voltage (V) |
Rotation speed（r/min） | Air flow (m³/h) |
Total pressure (Pa) |
Noise Level dB(A) |
| 2-2 | 0.12kW | 220v/380v | 2800 | 1300 | 140 | 62 |
| 2-4 | 0.06kW | 220v/380v | 1450 | 600 | 20 | 57 |
| 2.5-2 | 0.25kW | 220v/380v | 2800 | 2100 | 245 | 65 |
| 2.5-4 | 0.09kW | 220v/380v | 1450 | 1000 | 35 | 59 |
| 3-2 | 0.37kW | 220v/380v | 2800 | 3000 | 230 | 58 |
| 3-4 | 0.15kW | 220v/380v | 1450 | 2000 | 59 | 61 |
| 3.5-2 | 1.1kW | 220v/380v | 2800 | 6000 | 260 | 72 |
| 3.5-4 | 0.37kW | 220v/380v | 1450 | 3000 | 78 | 63 |
| 4-2 | 1.5kW | 220v/380v | 2800 | 11000 | 320 | 83 |
| 4-4 | 0.55kW | 220v/380v | 1450 | 5870 | 149 | 73 |
| 5-2 | 2.2kW | 220v/380v | 2800 | 18000 | 450 | 90 |
| 5-4 | 0.75kW | 220v/380v | 1450 | 10000 | 200 | 71 |
| 6-4 | 2.2kW | 220v/380v | 1450 | 18700 | 300 | 80 |
| 7-4 | 3kW | 380v | 1450 | 24500 | 350 | 85 |
| 8-4 | 4KW | 380V | 1450 | 28000 | 380 | 88 |
| 9-6 | 3kW | 380v | 960 | 34000 | 240 | 85 |
| 10-4 | 7.5kW | 380v | 1450 | 56000 | 430 | 92 |
| 10-6 | 4kW | 380v | 960 | 50000 | 260 | 88 |
| Model (mm) |
H | D | D1 | D2 | n |
| SF-2 | 235 | 255 | 235 | 215 | 4 |
| SF-2.5 | 235 | 315 | 285 | 265 | 4 |
| SF-3 | 240 | 365 | 335 | 315 | 4 |
| SF-3.5 | 330 | 415 | φ385 | 365 | 4 |
| SF-4 | 330 | 465 | 435 | 415 | 6 |
| SF-5 | 330 | 565 | 540 | 515 | 6 |
| SF-6 | 410 | 665 | 635 | 615 | 6 |
| SF-7 | 435 | 765 | 735 | 715 | 6 |
| SF-8 | 470 | 800 | 815 | 850 | 6 |
| model (mm) |
L | W | W1 | H | h | D | d |
| SF-3-2/SF-3-4 | 450 | 550 | 240 | 660 | 550 | 365 | 315 |
| SF-3.5-2/SF-3.5-4 | 520 | 680 | 230 | 845 | 680 | 415 | 365 |
| SF-4-2/SF-4-4 | 520 | 680 | 330 | 870 | 680 | 465 | 415 |
| SF-5-2/SF-5-4 | 640 | 680 | 330 | 965 | 680 | 565 | 515 |
| SF-6-4/SF-6-6 | 730 | 680 | 410 | 1015 | 680 | 665 | 615 |
| SF-7-4/SF-7-6 | 835 | 720 | 435 | 1100 | 760 | 765 | 715 |
| SF-8-4/SF-8-6 | 920 | 760 | 470 | 1330 | 960 | 850 | 800 |
The YWF Series External Rotor Fan is a new product developed by our company through repeated research and trial production. Compared with conventional axial flow fans, this fan features higher efficiency, lower noise, minimal vibration, compact structure, and aesthetically pleasing appearance. The impeller is directly mounted on the outer circumference of the external rotor, resulting in shorter axial dimensions. Its successful development represents a major breakthrough in the field of axial flow fans. This series has obtained multiple national patents.
The HFJZ-B craftsman kitchen fan is a square-housed ultra-quiet multi-blade centrifugal fan specially designed for kitchen exhaust. It was engineered to meet the demand for low-noise kitchen fans in modern kitchens and the exhaust requirements of communal ductwork. Compared to conventional multi-blade fans, it offers advantages such as higher pressure and lower noise levels. Moreover, it features a high static pressure design to tackle long ductwork and high resistance typical of modern kitchen setups.
The Y5-47 type boiler centrifugal induced draft fan features low noise, simple structure, and flexible adjustment of air volume and direction. It is suitable for industrial boilers fired with various coal types and equipped with smoke and dust removal devices. The temperature of the conveyed gas is ≤250°C. The fan is available in two drive modes: Type C and Type D, both equipped with water-cooled integral bearing housings and air volume regulating dampers.
The impeller of the TSK centrifugal duct fan adopts a backward-curved wind wheel and the fan is directly connected to the duct. This fan features low noise, large air volume and no overload. While operating with low noise, the fan not only withstands high pressure but is also suitable for operation in long pipelines or those with many bends. Moreover, it allows for use in humid or damp environments.
NCF-A high-pressure low-noise cabinet-type smoke exhaust fan is a cabinet-type smoke exhaust fan designed by our company in response to the ever-evolving commercial kitchen environments.The pressure of this fan is higher than that of a general box-type fan of the same power, while the air volume is greater than that of a general centrifugal fan.
The SFB high-air-volume axial flow fan has undergone comprehensive upgrades based on the SF model, equipped with aluminum alloy sickle-shaped blades. It adopts an aluminum alloy casing to enhance the motor’s sealing performance, featuring low noise, large air volume, high wind pressure, excellent heat dissipation, and stable operation.
This silencer is compatible with both HFJZ-A and HFJZ-B models, further reducing operational noise on top of the low noise features of artisan fans. Ideal for high-end commercial kitchens requiring superior acoustic performance, including institutional cafeterias, hotels, and restaurants.
The CBF Explosion-Proof Axial Fan is specialized ventilation equipment for hazardous environments. The fan is composed of an explosion-proof motor, blades, casing, etc. To prevent sparks from friction, the blades are made of cast aluminum alloy.The fan features low noise, low energy consumption, and superior performance. In addition to ventilation and exhaust, it can be installed in spaced series along long exhaust ducts to increase duct pressure. Unlike general fans in structure and material, its applications are similar.
The FA series exhaust fan has the characteristics of sturdy structure, beautiful appearance, low noise, and low energy consumption, and is suitable for ventilation, air exchange, and cooling in general environments such as factories, warehouses, offices, canteens, and kitchens.
The YL series electric motor is the latest designed fully enclosed single-phase motors, featuring a simple structure, reliable operation, convenient maintenance and affordable price.
The 4-72 Model Centrifugal Fan conveys air and other non-flammable, non-toxic gases that do not corrode steel. No viscous substances are permitted within the system. The dust and hard particulate content must not exceed 150 mg/m³, and the gas temperature must not exceed 80°C. This fan employs backward-curved blades with superior aerodynamic properties, delivering smooth operation, high airflow, minimal vibration, high efficiency, and extended service life. It is widely used for ventilation in industrial and mining enterprises, large-scale buildings, hotels, and restaurants.
The DWT type roof fan features low noise, light weight, smooth operation, high efficiency, and excellent anti-corrosion performance. It is applicable to indoor ventilation and air exchange in mechanical factory buildings and warehouses of petroleum, chemical, textile, metallurgy and other industries.
The 9-26 Type High-pressure Centrifugal Ventilator can be widely used for conveying materials, air, and gases that are non-corrosive, non-self-igniting, and free of viscous substances. The temperature of the conveyed medium generally does not exceed 80°C, and the dust and hard particles content does not exceed 150mg/m³. It is suitable for high-pressure ventilation in general forging and smelting, glass, ceramics, radio, electroplating, storage battery industries, as well as material conveying in processing industries such as grain, feed, mineral powder, and plastics.
Ideal for moisture-proof drying; localized heating; construction sites; outdoor heating; equipment insulation; railway stations and airports; yachts and ships; paint drying; mobile heating; quick warming; venues and clubs; clean heat delivery; rapid temperature rise, etc. Working pressure ≤ 0.8 MPa.
The YW5-47 series boiler induced draft fan (air-cooled high-temperature resistant) is a new-type high-efficiency and low-noise boiler fan developed by our company specifically for the domestic boiler industry, based on referencing advanced foreign prototypes. This series of fans is currently one of the lowest-noise and minimal-vibration products in domestic boiler fans, reaching the advanced domestic level.
The YWF Series External Rotor Fan is a new product developed by our company through repeated research and trial production. Compared with conventional axial flow fans, this fan features higher efficiency, lower noise, minimal vibration, compact structure, and aesthetically pleasing appearance. The impeller is directly mounted on the outer circumference of the external rotor, resulting in shorter axial dimensions. Its successful development represents a major breakthrough in the field of axial flow fans. This series has obtained multiple national patents.
