- Model NO.: WDL-5
- Usage: for Manufacturing
- Pressure: Low Pressure
- Product Type: Roof Ventilator
- Mounting: Roof Fan
- Trademark: Tatai, Shuangyi
- Specification: ISO9001, ISO14001
- HS Code: 8414593000
- Material: FRP
- Flow Direction: Centrifugal
- Certification: ISO
- Capacity Type: Middle Duty
- Materials: FRP
- Transport Package: Carton Box, Seaworth Packing
- Origin: Shandong, China
Specifications / Structure:1. Material: made of stainless steel by stretching forming, attractive appearance, no rust, 2. Bearing: whole sealing bearing, which can ensure it operates smoothly and constantly.3. Special central shaft design, high-class lubricating bearing system: preventing turbine blades rotating at high speed from deformation, and extending the service life. 4. Inside support frame: cast iron.
model NO. |
Inlet Diameter (mm) |
Outlet diameter(mm) |
Air speed (m/s) |
Air capacity (m/h) |
Weight (kg) |
Material |
SY-300 |
300 |
400 |
3.4 |
1280 |
3.5 |
Stainless steel |
SY-360 |
360 |
460 |
3.4 |
1380 |
4.2 |
Stainless steel |
SY-400 |
400 |
500 |
3.4 |
1680 |
6.2 |
Stainless steel |
SY-500 |
500 |
630 |
3.4 |
2520 |
8.5 |
Stainless steel |
SY-600 |
600 |
730 |
3.4 |
3600 |
11 |
Stainless steel |
SY-680 |
680 |
880 |
3.4 |
4500 |
15 |
Stainless steel |
SY-800 |
800 |
980 |
3.4 |
6500 |
18 |
Stainless steel |
SY-880 |
880 |
1050 |
3.4 |
8000 |
22 |
Stainless steel |
Advantages:1, Automatically running. wind drive. One time investment, no more cost. 2. No operating cost, no electricity consumption, environmental protection, energy-saving.3. No need maintenance, long life working.4. Light weight, strong and durable construction.5. Weather resistance, self-cleanness, high revolving sensitivity and high air venting efficiency. 6. Easy installation: installation position: flat roof, pitched roof, concrete roof and contour plate of various industrial plants.7, waterproof efficiency may reach 100%. Function:
- Exhausting turbid, humid hot air to exterior and supplying fresh air to interior.
- Produce air convection as a heat radiator, reducing indoor temperature, increasing air fresh.
- Reduce air conditioning load, increasing the cooling effect.
The parameter list as follows:
 Type |
 Air vent diameter (mm)  |
 Net height (mm) |
 Net weight (kg) |
 Packing size (mm) |
SY-300 |
300 |
340 |
2.0 |
410×410×370 |
SY-360 |
360 |
360 |
3.0 |
500×500×390 |
SY-400 |
400 |
370 |
4.0 |
500×500×390 |
SY-500 |
500 |
580 |
4.6 |
640×640×500 |
SY-600 |
600 |
590 |
5.8 |
730×730×600 |
SY-680 |
680 |
630 |
6.8 |
800×800×650 |
SY-800 |
800 |
640 |
8.1 |
900×900×650 |
Widely used in these places1) Warehouse; 2) Factories and workshops (such as paper mill, galvanized products producing factories, painting factories); 3) Garage and other buildings which need air ventilate. Packing and shipping:

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