
Specifications | A | B | C |
JY-100 | 100mm | 150mm | 180mm |
JY-150 | 150mm | 220mm | 200mm |
JY-200 | 200mm | 300mm | 240mm |
JY-300 | 300mm | 430mm | 330mm |
JY-400 | 400mm | 530mm | 430mm |
JY-500 | 500mm | 600mm | 470mm |
JY-600 | 600mm | 700mm | 500mm |
JY-800 | 800mm | 970mm | 720mm |

Product performance description
Rooftop non-power fan is the use of natural air convection principle, combined with its own unique structural design, any parallel direction of air flow, accelerate and change into vertical air flow from bottom to top, in order to improve the indoor ventilation effect
Rooftop fan does not need electricity, no noise, can run for a long time, exhaust indoor heat, flue gas, odor, water vapor, etc., it has many exhaust equipment do not have the characteristics

304 stainless steel material
Selection of fine steel, every detail carefully made, hard appearance, corrosion resistance
No power and no maintenance
There is no need for automatic exhaust of electricity throughout the day, and it can reduce fire and a lot of other unnecessary troubles caused by short circuit of wires or voltage overload
Smooth surface
Smooth and beautiful appearance, the overall design is unique to attract the eye, popular with the public
voice
Noise free and durable There is no noise when the fan is running, and the core of the fan is made of closed bearing, and the blade base is made of stainless steel sheet in one stamping form, which is anti-corrosion, acid and alkali resistance, anti-aging, and has a long service life




Performance Characteristics:
1.Natural wind drives,operating in 24 hours of the whole day.
2.High sensitivity ,slight wind or the range of temperature can drive the turbine blade to turn around .
3. Rotary stablely ,quietly to improve the inner environment of room.
4.Using complete senior axis bearing, no lubrication ,solid ,low fault rate. 5.Corrosion resistance,acid and alkali proof,long service life .





1) Q:Are you trading company or factory?
A:We are a factory with many years of experience.
2) Q: How can i get your pricelist?
A:Send an enquiry to us and tell us u need our pricelist,our sales will reply u within 24 hours with pricelist.
A:0f course I'm sure our high quality products will bring you more orders,but you may need to pay sample charge which will be returned afterany order signed.
4) Q:What certificates your products have?
A:Most of our products have CCC,CE,ISO and RoHS certificates.If you needothers such as UL,PSE and so on, we can proceed them too.
5) Q: What is the after-sale service proposal?
A: Considering to the expensive overseas freight, we advise to provide certainpercent of critical components for free, or provide certain discount to let ourbusiness partners handle the after-sale service by themselves.
6) Q:What's your delivery time?
A:Usually it can be within 30 days!
7) Q:What is your accept payment method?
A:We can accept TT,Paypal,L/C at sight. 30% deposit before production and 70%before loading!