The industrialization must bring global energy nervous, as the main factors, the energy saving of industrial factory is imperative.
Large factory energy consumption is directly related to ventilation system.The quality of the ventilation and cooling is also the key indicator.
The workshops usually has brick-concrete, brick-concrete iron roof and steel structure. Due to span and height, the temperature can up to 1040F due to heat absorption,equipment and staff. Large workshop also has poor air circulation and pollution.
Poor environment affects the health, let employees leave in summer, difficult to recruit new, so it is particular important to improve the environment
Due to the heat and steam cannot be discharged in time , they will accumulate then increase the temperature . The solutions to these problems is the suitable ventilation system.
The employees have high labor intensity and mobility, the effect of small fans is bad,it can not air circulation in the large space. The air conditions cost will be higher. How to control the cost , improve the environment and work efficiency are the problems to be solve urgently.
Dawangfans can cool 5 ℃ -15 ℃ in different climate regions.and The air is 100% fresh after the moisture evaporated and filtered, increase the oxygen to 70%. The heat, muggy or other environmental problems in the workshop can be eliminated
Dawang fans(24ft) coverage is about 16145ft2.The streamlined variable-section blades drives massive airflow forms the cone air to the floor.Meanwhile,It solves the high energy consumption of air condition and pedestal fan.



10+
Safety guarantees

Long life free maintenance
PMSM motor

15072m³/min
Full air volume

8m
Fan diameter

1.5kw/h
Motor power

App
Easy and convenient






Choose the right fan
Say goodbye to danger


Easy to break--Ordinary profile blade


Easy to break
hard connection


Easy to fall
Tenonless structure


No break, No fall
Dawang Ventilation high quality material structure large fan
10+ SAFETY GUARANTEE

STREAMLINED VARIABLE CROSS-SECTION
Conform to aerodynamic equal chord length theory,combined with the relative linear velocity principle,the blade narrows and thins from root to tip till tail then widen,the air is more even and uniform.

AVIATION ALUMINUM PLATE
1.5mm thickness 5052 Ultra-high toughness aviation aluminum plate can load more than 3Ton tensile to ensure the blade can deform quickly and absorb external force effectively, It can prevent the blade from breaking,avoid the damage to the motor and other structural parts reatly.

BLADE HIGH-STRENGTH CONNECTION
Each blade is fixed with the buffer cavity by 16pcs high-strength rivets, each rivet can load 1.5 ton shear force.

BUFFER DEVICE
The blade and petiole flexible connects with buffer device, the rubber absorbs the most vibration from blades when running.

ANTI-FALLING RING
The concave flange are engaged with the convex anti-falling ring each other under the gravity to ensure a reliable connection between the flange and motor.

SAFETY RING
Connect the 5 petioles into a whole to form the sleeve with the frame lower hub to prevent the petioles from falling.

MORTISE AND TENON PETIOLE 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.

HIGH-TENSILE STRENGTH PETIOLE
6061-T6 petiole,high strenght,HB90 hardness,it has good corrosion resistance with 205MPa tensile strength.

WIRE ROPE WIND PROTECTION
Mounting bracket and I Beam winded with 1000KG tensile wire rope to prevent sliding and falling.

WIRE ROPE BALANCE PROTECTION
Four wire ropes are fixed with building traction to prevent shaking and falling.

ABNORMAL ALARM SYSTEM
The VFD system comes with accident protection.It will automatically alarm and stop work.

REAL-TIME MONITOR AND INITIATIVE MAINTENANCE
Dawang intelligent remote control system realtime monitor the fan operating parameters,motor temperature rise ,fan horizontal level and so on.

Motor system:PMS 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 steady:New generation of high-reliability IGBT modules,Motor vector algorithm and current suppression let the start more steady.
2.More quiet:Up to 16KHZ,no noise during the speed up, slow down and running.
3.More reliable:PCBA three-proof paint treatment,durable and long life.
4.Restart: It can smooth restart when the blades not completely stopped.
5.Failure protection:More than 25 fail-safe protections (over current and voltage,under voltage,phase loss,overload,etc.)


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.

Applications






Technical Parameters
Product series | W.FANS form | ||||||||
Product model |
W26
|
W24
|
W22
|
W20
|
W18
|
W16
|
W14
|
W12
|
W10 |
Specification/Diameter (m) |
8
|
7.3
|
6.7
|
6.1
|
5.5
|
4.9
|
4.2
|
3.6
|
3.1 |
Speed range (rpm) |
10-45
|
10-55
|
10-60
|
10-60
|
10-70
|
10-75
|
10-80
|
10-90
|
10-100 |
Full speed air volume (m³/min) |
15072
|
13804
|
11630
|
9639
|
7836
|
6220
|
4570
|
3357
|
2263 |
Coverage area (m²) |
2462
|
2123
|
1809
|
1520
|
1256
|
1017
|
804
|
615
|
452 |
Rated power (kw) |
1.5
|
1.1
|
0.75 |
0.4
|
|||||
Average energy consumption (kw·h) |
≤1.2
|
≤1.0 |
≤0.8
|
≤0.6 | |||||
Motor noise (dB) |
≤38
|
||||||||
Power parameters (V) |
380V/220S
|
||||||||
Full load current (A) | 2.8(380V)/4.6(220V) | 2.6(380V)/3.0(220V) |
0.75
|
2.0 | |||||
Machine weight (kg) |
108
|
92 | 90 |
73
|
63 | 60 |
47
|
42 | 39 |
Installation Clearance
W.FANS - Applicable areas
Workshop / logistics storage warehouse/gym / gymnasium / indoor sports field / training room/large amusement park / animal botanical garden / children's playground/Railway Station / high speed railway station / car station / subway station / terminal……
Free consultation
Whether you are in an industrial park plant, station, warehouse, shopping mall or school, our experts will provide you with easier, more comfortable and more convenient solutions for your reference. You can call us for consultation anytime 400-086-9230or request a quote to learn more about how to ventilate.
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