• Henan Silver Star Poultry Equipment Co.,LTD
    Mr. Umar Jibril
    We have been cooperating with Silver Star since the year of 2011, our first chicken farm layer cage order is also very strong so far. High quality and durable cages, i am very satisfied.
  • Henan Silver Star Poultry Equipment Co.,LTD
    Mr. Bryan
    Siver Star battery chicken cage is worth to order: Last year we cooperated first time on hot dip galvanizing layer chicken cage. I was really surprised with the poultry cage when i recevied. What's more, Siver Star gave us more patient installation guidance. Now my farm is running very well, soon i will prepare for my second house.
  • Henan Silver Star Poultry Equipment Co.,LTD
    Mr. Halim Satria
    It is unforgettable for us to meet on exhibition booth, we talked with Silver Star manager Ms. Joise, and started our first business for my new chicken farms with automatic chicken cage. Ms. Joise send the engineer to guide installation for me, easy to operate, i am thankful.
Contact Person : Joise Zhang
Phone Number : 86-15290088807
Whatsapp : +8613562024774

1000mm 304 SS Roof Air Ventilator , Wind Driven Roof Extractor Fan

Place of Origin China
Brand Name Silver Star
Certification ISO9001, SONCAP
Model Number YXRF-800
Minimum Order Quantity 1 Set
Price 10-40USD/ Set
Packaging Details Standard exporting packaging
Delivery Time 7-10 working days after advanced payment
Payment Terms T/T, Western Union, D/A, D/P, L/C
Supply Ability 200000sets/ month

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Product Details
Features Save Electricity, Reduce Noise Keywords Non-Power Wind Driven Roof Ventilator Natural Air Exhaust Fans
Other Name Roof Mounted Exhaust Fan Roof Ventilator Material 304 Stainless Steel Fans
Roof Ventilator Diameter 300/400/500/600/800/900/1000mm Working Theory Indoor And Outdoor Air Convection
Use For Poultry Farming Equipment Or Other Industries Assembled On Roof
Marketing Type New Product 2021 HS Code 84362900
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1000mm roof extractor fan


Wind Driven roof extractor fan


304 SS roof air ventilator

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Product Description

                   304 Stainless Steel Non-Power Wind Driven Roof Ventilator
                                        Natural Air Exhaust Fans
Non-Power Wind Driven Roof Ventilator Natural Air Exhaust Fans Description
Non-power wind driven roof ventilator natural air exhaust fans use 304 stainless steel materail with a long life service,  with features of zero-cost operating costs, considerable energy efficiency, economical installation costs, and low maintenance costs, which are widely used in poultry chicken farms. Roof ventilator working principle: Turbine ventilators use natural wind and air thermal convection caused by the difference between indoor and outdoor temperature to push the turbine to rotate so as to use centrifugal force and negative pressure to expel the stale indoor hot air.
Roof Ventilator Natural Air Exhaust Roof Fans Specification

Model Diameter(mm)

Fans Balde Quantity



Inlet Air


YXRF-400 400 26 390 3.4 304Stainless steel
YXRF-500 500 32 480 3.4 304Stainless steel
YXRF-600 600 32 600 3.4

304Stainless steel


YXRF-800 800 42 660 3.4 304Stainless steel
YXRF-900 900 48 700 3.4 304Stainless stee

Roof Ventilator Natural Air Exhaust Fans Characteristics:
1. High-quality structure:
Rigid spherical structure, permanent lubrication of the upper and lower ball bearings, to ensure a long life and maintenance-free, no need to replace parts, Cases, the American PEER, UBC, Japan NSK high-precision bearing system is fully enclosed and absolutely excellent quality assurance.
2. Operation of precision equipment:
UBC high-precision bearing system is fully enclosed, high heat-resistant synthetic grease lubricant, suitable for permanent self-lubricating, non-lubricating best bearings. Be careful, even if there is a breeze of less than 2 kilometers, it is self-supporting.
3. Green ventilation:
Adopt the principle of natural wind drive, do not use motor power, avoid the cost of non-electric operation, and do not stop the self-turbine ventilator. Rotating, silent and no noise during operation.
4. Wide applicability:
Light steel special-shaped slab roofs of various industrial plants with unique angles in diameter can be installed with concrete roofs. And does not need support, easy to install.



Maintenance Precautions


1. Under normal conditions, if the unpowered fan runs continuously for about one month, it is necessary to inject calcium-sodium-based grease or molybdenum disulfide grease into the bearing with a butter station. The fan runs continuously for 3-6 months, and the grease should be replaced once to fill 2/3 of the bearing space.

2. Regular maintenance of unpowered fans to eliminate dust and dirt inside the fans.

3. During the startup, shutdown or operation of the unpowered fan, if abnormal conditions are found, including temperature, vibration, noise, etc., they should be overhauled immediately.

4. Use the adjusting device to keep the triangle tape evenly tensioned and not too loose or too tight. The length of several triangle tapes should be the same as possible.

5. For unused standby machines or fans that have been out of service for a long time, the rotor should be rotated by 120°-180° regularly to prevent the main shaft from bending. Add a valve to the inlet or outlet of the roof unpowered fan, close it when starting, and open the valve after operation until it reaches the specified working condition, and the inner ring and the shaft fit tightly.

6. In order to ensure personal safety, the maintenance of the roof unpowered fan must be carried out during shutdown


1000mm 304 SS Roof Air Ventilator , Wind Driven Roof Extractor Fan 0