Overview
| Place of Origin | China | Mounting | Ceiling Fan |
| Feature | Lower Noise | Application | industrial/commerical |
| Type | Axial Flow Fan | Applicable Industries | Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company |
| Brand Name | dawangfan | Electric Current Type | AC |
| Installation | Roof Mounted | Supply Ability | 1500 Set/Sets per Month |
| Blade | 5 Pcs | Warranty | 2 years |
| Diameter | 8000mm(large Size) | Certification | ce,CCC |
| Color | Silver | Packaging Details | industrial packing |
| Frequency | 50HZ/60HZ | Voltage | 110V/220V/380V |
| Motor | DC Brushless Motor | After-sales Service Provided | Field maintenance and repair service |
| Customized support | OEM, ODM, OBM | Port | shanghai or as requirments |
Product Details
China OEM Ceiling flow air cooling ventilation PMSM for many occasions high quality high volume low noise fan
Products Description
W.Fans is new large HVLS energry-saving industrial fan based on PMSM (permanent magnet synchronous motor) principle developed by Dawang.With 260N.m torque,the driving force is more stronger and the torque is more stable.Save 30% energy,IE4 high efficiency.The fan diameter from 2.5M to 7.3M,14850m³/min air volume,free maintain for life,no need to change oil and seal. 20-years reliablelife,W.Fans series solves the problem of ventilation and cooling in large spaces with better performance,lower energy consumption and longer life.
Motor system:pmsm motor
1.More stronger:260N.m torque,more stronger,more stabler torque,air volume increases 30%.
2.More efficient:Unique outer rotor high torque design,higher accuracy.
3.More energy saving:30% energy saving,up to IE4 high-efficiency energy-saving
standards,GB30253-2013 national energy efficiency new standard.
4.Free maintenance for life :Totally sealed,no need to replace lubricating oil,seals and other
accessories,more cost-effective.
5.Lower noise:38db lower noise,more comfortable.
6.Lower temperature：Motor raised temperature lower than 35℃,longer life.
Vfd:vector converter
1.More stronger:260N.m torque,more stronger,more stabler torque,air volume increases 30%.
2.More efficient:Unique outer rotor high torque design,higher accuracy.
3.More energy saving:30% energy saving,up to IE4 high-efficiency energy-saving
standards,GB30253-2013 national energy efficiency new standard.
4.Free maintenance for life :Totally sealed,no need to replace lubricating oil,seals and other
accessories,more cost-effective.
5.Lower noise:38db lower noise,more comfortable.
6.Lower temperature：Motor raised temperature lower than 35℃,longer life.
Blades- Airflow components
1.Blade design-Streamline variable cross-section
Conform to aerodynamic equal chord length theory,combined with the relative linear velocity principle,the blade narrows（304-186mm) and thins(43mm-21mm) from root to tip till tail then widen,the air is more even and uniform.
2.Blade material-Aviation aluminum alloy
1.5mm thickness No.5052H32 aviation aluminum alloy original plate,precision CNC molding,high strength and flexibility ensure the blade not to be broken.
3.Blade weight-More lighter and safer
6.7kg per blade(24ft),less blades,lighter weight,it can reduces the motor load,prolong the life,more safe and cost-efficient.
Connection:patented full mortise and tenon structural design to ensure the whole fan safety:
1.Blade and petiole
Mortise and tenon connection:
The convex petiole with concave buffer device form the Joint engaged,eliminate the
centrifugal force from the blades when the fan is running and the shear force when the fan
starts and stops.
The transverse screw is the same direction with fan running track to avoiding the shear in
order to ensure the blade will not broken,eliminate the possible Safety hazards radically.
2.Petiole and wheel hub
The petiole and hub/motor are integrated by the stepped concave-convex sections to
engage each other.The overall structure is used to withstand the centrifugal force during
running,and all fasteners are not stressed.
3.Motor and flange roulette
Safety ring:Connect the 5 petioles and motor upper cover form the whole,adopt the occlusion structural to even the force of the whole fan.
Anti-falling roulette:The concave flange roulette engaged with the convex anti-falling ring each other under the gravity to ensure the reliable connection between the flange roulette and motor.
Blade shape- Streamlined variable cross-sectionThe blade section is from wide to narrow (304-186mm),from thick to thin (43mm-21mm).Adopts the equal chord length principle and relative linear velocity characteristics to ensure the balance pressure of the whole blade to achieve the tip,middle and roots air evenly including the middle.
Blade shape- transverse section,equal width section The blade length is equal with cross section ,blade width is 19CM.High air resistance is not conducive to pushing airflow, holes in the middle, high energy consumption.
Blade material- aviation aluminum sheet
Adopt NO.5052H32 1.5mm thickness aviation high grade density aluminum alloy original plate,with high strength and flexibility,bright and durable.
Blade material-Low grade aluminum Low grade aluminum mixed with recycled aluminum for secondary processing, low density, impurities, pores, low toughness and easy to break
Blade weight-light
Each blade 6.7KG,total weight for 5pcs 33.5KG.Smaller blades ,lighter weight, reducing the motor load and extend service life, low energy consumption.
Blade weight-heavy Cross section width equal to the blades, Each blade 10KG,normal 6pcs or 8pcs.Heavy weight, large motor load, high energy consumption.
Blade and petiole -- full mortise and tenon connection
The convex petiole and concave buffer device are locked with bolts, each blade is riveted with buffer device by 16 rivets,forming the blade, buffer device and petiole as a whole, torque and shear less and less.
Blade weight-heavy Cross section width equal to the blades, Each blade 10KG,normal 6pcs or 8pcs.Heavy weight, large motor load, high energy consumption.
Buffer device-Rubber mat
The rubber pad between mounting hole of buffer device and shaped inserts to achieve the flexible connection between petiole and chassis.Rubber mat absorb the most of vibration, improve the motor shaft work conditions, extend the life, more quieter
Buffer device-No Vibration cannot be weakened, resulting petiole and blades loosen,heavy loading, high noise.
Wheel chassis-Integrated hub
Special-shaped mounting hole and inserts locked each other to prevent the blade from swinging
Wheel chassis structure-die cast Gravity die-casting aluminum wheel chassis or separated wheel hub, low strength, poor fatigue resistance.
Specification
Item | W.Fans | W.Fans | ||||||||||||||||
Models | 26ft | 24ft | 22ft | 20ft | 18ft | 16ft | 14ft | 12ft | 10ft | |||||||||
Diameter（m) | 8 | 7.3 | 6.7 | 6.1 | 5.5 | 4.9 | 4.2 | 3.6 | 3.1 | |||||||||
Speed（rpm) | 0-50 | 0-55 | 0-60 | 0-65 | 0-70 | 0-75 | 0-80 | 0-90 | 0-100 | |||||||||
Air Volume（m³/min) | 15072 | 13804 | 11630 | 9639 | 7836 | 6220 | 4570 | 3357 | 2263 | |||||||||
Coverage（m²) | 2462 | 2123 | 1809 | 1520 | 1256 | 1017 | 804 | 615 | 452 | |||||||||
Consumption（kw/h) | ≤1.2 | ≤1.0 | 22m | ≤0.8 | ≤0.6 | |||||||||||||
Weight（kg) | 108 | 92 | 90 | 73 | 63 | 60 | 57 | 42 | 39 | |||||||||
Noise（dB) | ≤38 | |||||||||||||||||
Blade Nos(pcs) | 5 | |||||||||||||||||
Rated power（kw) | 1.5 | 1.1 | 0.7 | |||||||||||||||
Full Load Current（A) | 3.2 | 5.2 | 3.5 | |||||||||||||||
Power supply（V) | 380 | 220 | ||||||||||||||||
Custom is available | Custom is available | |||||||||||||||||
Packing & Delivery
Model | Items | Pkg/Unit | Dimension(l*w*h) | Volume/Unit | Gross Weight/unit |
W.FANS | 24ft(7.3m) | 2 Carton boxes | Motor carton:920*520*520mm Blade carton:3400*230*320mm | 0.5m³ | 146Kg |
22ft(6.7m) | Motor carton:920*520*520mm Blade carton:3020*230*320mm | 0.47m³ | 143Kg | ||
20ft(6.1m) | 140Kg | ||||
18ft(5.5m) | 137Kg | ||||
16ft(4.9m) | 134Kg | ||||
12ft(3.6m) | 130Kg | ||||
10ft(3.1m) | 127Kg | ||||
08ft(2.5m) | 125Kg |
Company Profile
CE certificate
No:CFTCF0717
FCC certificate
No:BST16063229A0001Y-1EC-3
RoHS certificate
No:BST16063229A0001Y-1RC-4
ISO9001 certificate
No:04620Q15800R1S
Utility model patent certificate
No:10236389
Inspection report
No:2019AZWA01184
Jiangsu Dawang Ventilation Machinery Co., Ltd. (hereinafter referred to as "Dawangfan") is the HVLS (High Volume-Low Speed) new intelligent IoT large energy-saving fans manufacturer,committed to providing customized solutions for ventilation,cooling,dehumidification and dust removal in all tall spaces!
Dawangfan devotes to R&D,manufacture,sales and comprehensive maintenance for new generation HVLS(High Volume-Low Speed) fans.With years of experience and strong R&D team,Dawang continues to introduce new fans,such as HVLS large energy-saving ceiling fan,vertical fan,wall fan and mobile fan based on PMSM (Permanent Magnet Synchronous Motor),we always keep the progressiveness in this industry!
Dawangfan has passed IS09001:2015 quality management system certification,occupational health and safety management system,five-star after-sales service qualification certification and TUV in-depth factory inspection.
The fan has more than 20 patents,including 3 invention patents,completed intellectual property,which get the "High-tech Enterprise","Wuxi Chuying Enterprise" and other honors.The fan has passed FCC,CE,ROHS,CCC,CSA,GL,UL certification,authoritative destructive test of the key components.
Dawang sales and service network has covered all over the world.We have solved over 80 million square meters of industrial facility and public for more than 5,000 customers at home and abroad,established the long and stable cooperation.
Dawangfan has always adhered to the brand positioning of "focus, efficiency and safety",adhering to the development philosophy of "customer demand as oriented,safety as the core and artificial intelligence as the goal", insisting on making reliable products,providing high-quality services,we strive for outstanding national brand to improving the environment of tall spaces!
Slogan: dawang appoints me to ventilation.
Mission: let the world feel like spring breeze.
Philosophy:the leader of intelligent era for high space ventilation and cooling
China OEM Ceiling flow air cooling ventilation PMSM for many occasions high quality high volume low noise fan
Trading Area
Global