Unpowered free runnig cost roof ventilator,roof fan(360-680mm)

2.  Bearing: wholel 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. 

Roof ventilation fan -Advantages 

1, Automatically running. wind drive. One time investment, no anymore 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%. 

Roof ventilation fan -Function:

1)      Exhausting turbid, humid hot air to exterior and supplying fresh air to interior.

2)      Produce air convection as a heat radiator, reducing indoor temperature, increasing air fresh.

3)      Reduce air conditioning load, increasing the cooling effect.

Roof ventilation fan Widely used in these places

1) Ware house;

2) Factories and workshops (such as paper mill, galvanized products producing factories,

painting factories);

4)      Garage and other buildings which need air ventilate.

Roof ventilation fan -The parameter list as follows

Advantages:

1)High-efficiency ventilation

2)High-quality stainless steel body

3)Easy and fast installation.

4)Environmental protection, energy saving and no electricity cost.

5)Stable and durable, dehumidification, anti-sweat and rain-proof.

6)High sensitivity and no noise.

7)All the ventilators adopt American UBC bearings, free lubrication. Supporting brackets are all made of stainless steel, which has very good corrosion-resistant ability.

Packing &Shipping                                            

Company Profile                                                                                  

Certification                                               

Our Advantage                                             

1 natural wind driven, 24 hours all-weather operation.

2 high sensitivity, as long as the breeze or indoor and outdoor temperature difference can be driven to rotate aturbine blade.

3 running smooth, quiet, improve the indoor environment.

4 with the whole group of senior bearings, no need of lubrication, durable, low failure rate.

5 corrosion resistant, acid and alkali resistance, long service life.

FAQ                                                     

 Why choose Qingdao Peng Sheng Electrical Appliance Co., Ltd.?

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.

Contact Way                                             

If you can't find the datas you need, pls send us your performance requirements,

we will provide you customized design service in 8 hours.

       Skype           :qdpsdq.dong

       Mobile          :+86 13964294505

       My name     : Anthony Lu