Key specification for this roof mounted exhaust fan: rated voltage 110/120V 220/240V and other voltage, power source Electric. Everything below is reproduced from the factory data sheet. Made by Qingdao Damuyuan Machinery Manufacturing Co., Ltd. (4 years on the platform, typical reply ≤2h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Roof Mounted Exhaust Fan
- Model Number: 200-2000mm
- Power Source: Electric
- Voltage: Other, 120 V, 220v, 380v, 110v, 440v, 240v, custom
- Rated Voltage: 110/120V 220/240V and other voltage
- Material: Stainless Steel
- Blade Material: aluminum
Technical Specifications
| Voltage | Other, 120 V, 220v, 380v, 110v, 440v, 240v, custom |
|---|---|
| Speed | 2500 RPM, 3 000 RPM, 4500 RPM |
| Type | exhaust fan |
| Material | Stainless Steel |
| Blade Material | aluminum |
| Mounting Type | roof top mounting Fan |
| Bearing Type | Ball Bearing |
| Power Source | Electric |
| Warranty | 1 Year |
| After-Sales Service Provided | Online support |
| Customized Support | OEM, ODM, OBM |
| Place Of Origin | Shandong, China |
| Brand Name | Damuyuan |
| Model Number | 200-2000mm |
| Product Name | roof top Axial Fan |
| Application | Exhaust Ventilation |
| Size | 200mm-2000mm |
| Keyword | Exhaust Fan Ventilation |
| Motor | 100% Copper Motor |
| Rated Voltage | 110/120V 220/240V and other voltage |
| Certification | CCC/CE/ISO9001 |
| Installation | Duct Connection, standing type |
| Selling Units | Single item |
| Single Package Size | 100X100X100 cm |
| Single Gross Weight | 150.0 kg |
Product Details
FRP Roof axial flow exhaust fan
a. The code is DWT_ Type I, suitable for medium and low pressure, large flow applications. At the same time, according to the needs of users, it can also be designed as bidirectional rotary reversible type, which has the characteristics of equivalent positive and negative working conditions (the product has obtained the national patent)
b. Centrifugal roof fan: code named dwt-ii type, suitable for small air volume and high pressure requirements.








1.High efficiency, low noise
3.Stable operation and long service life
4.it has wide application
5.beautiful appearance
6. Service conditions: the temperature of the medium does not exceed 60C, the gas does not contaiexcessive viscous substances, and the dust content is less than 10mg / m³
MODEL DWT-I ROOF AXIAL FAN | ||||||||
Size(NO) | Power(KW) | Speed(r/min) | volumeFlow(M3/h) | Total Pressure(Pa) | ||||
3 | 0.37 | 2800 | 3300-2600 | 181-232 | ||||
0.06 | 1400 | 1650-1450 | 62-72 | |||||
0.04 | 1400 | 800-1100 | 25-37 | |||||
3.5 | 0.75 | 2800 | 4150-4788 | 150-230 | ||||
0.37 | 1400 | 3320-2565 | 100-150 | |||||
4 | 0.75 | 2800 | 7450-5300 | 193-250 | ||||
0.55 | 1400 | 5700-4580 | 176-190 | |||||
0.25 | 960 | 3000-3800 | 69-86 | |||||
4.5 | 0.37 | 1400 | 6067-4968 | 110-130 | ||||
0.55 | 1400 | 6320-5220 | 125-140 | |||||
5 | 0.55 | 1400 | 8000-5600 | 135-191 | ||||
0.37 | 960 | 7000-6400 | 113-131 | |||||
0.25 | 720 | 4100-6000 | 88-96 | |||||
6 | 1.5 | 1400 | 15000-13000 | 232-267 | ||||
1.1 | 960 | 11000-9100 | 168-193 | |||||
0.55 | 720 | 8500-7600 | 111-136 | |||||
7 | 1.5 | 960 | 17500-12500 | 165-212 | ||||
0.75 | 720 | 12000-9200 | 141-177 | |||||
0.55 | 560 | 7200-9300 | 83-102 | |||||
8 | 2.2 | 960 | 27000-23000 | 175-228 | ||||
1.5 | 720 | 20000-16000 | 129-167 | |||||
0.75 | 560 | 15750-12250 | 78-121 | |||||
9 | 3.0 | 960 | 34500-24000 | 202-256 | ||||
2.2 | 720 | 32000-24000 | 126-177 | |||||
1.1 | 560 | 24000-18600 | 102-126 | |||||
10 | 5.5 | 960 | 50000-39000 | 251-317 | ||||
3.0 | 720 | 46000-35000 | 141-183 | |||||
1.5 | 560 | 28000-20000 | 111-133 | |||||
11 | 5.5 | 960 | 56900-40400 | 253-322 | ||||
3.0 | 720 | 52500-40000 | 138-183 | |||||
1.5 | 560 | 32000-25000 | 111-142 | |||||




























1. Good quality, Competitive price, Fast delivery.
2. We have a R&D team who have average 10 years experience in designing and producing fans, we can OEM different kinds of products according to your requirement, in order to produce the products more suitable to your market !
3. We have a lot of customers from overseas. A lot of our customers has established long term business relationship with us.
4. All the products have 1 year warranty. All products are conducted strict QC and inspection before shipping.
5. If you have any problems or suggestions about our products or service, you can contact me or our sales manager whenever you want. We will give you a satisfying reply.


Ordering and Pricing
- Minimum order quantity: 1 piece
- Volume pricing:
- 1–9 piece: US $299 / piece
- 10–99 piece: US $199 / piece
- 100+ piece: US $99 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this roof mounted exhaust fan?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Which certifications does this roof mounted exhaust fan carry?
It is supplied with CCC/CE/ISO9001 documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the roof mounted exhaust fan be supplied for my local voltage?
The standard configuration is Other, 120 V, 220v, 380v, 110v, 440v, 240v, custom. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Qingdao Damuyuan Machinery Manufacturing Co., Ltd., based in China. The company 4 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Qingdao Damuyuan Machinery Manufacturing Co., Ltd. range on HVACR Nexus.
See more in Metal Duct Fans on HVACR Nexus.
























