HVLS (High Volume Low Speed) is the new solution of energy saving to solve the ventilating or cooling problem of large space. Ourlarge energy-saving ceiling fans comes with maximum diameter of 7.3meters, apply the HLVS principle and advanced technology manufacturing. This fan can circulate in big space efficiently with minimum noise pollution while operating (less than 43dB). Widely used in commercial spaces such as airports, office lobby, auditorium, restaurants and other large operational spaces.Our HVLS Fans takes only 1.5 KW or less power to cover area of 1,450 meters square, which equivalent to the effectof 30 small fan. Our HVLS Fans has 10 year’s service life.
Model
Voltage
（V）
Power
(W)
(RPM)
Diameter
(M)
Air volume
(m³)
Noise
（dB）
Blades
(pcs)
Weight
（kg）
PMSM7.3
220/380
1560
55
7.3
13185
40
5/6
113
PMSM6.7
220/380
1152
60
6.7
12862
40
5/6
110
PMSM5.5
220/380
800
65
5.5
11963
40
5/6
103
PMSM4.7
220/380
700
68
4.7
7075
40
5/6
96
PMSM3.6
220/380
410
90
3.6
3326
40
5/6
88
AF-LD-7M
6wing type simulation patent blades,Fan diameter 7M；speed 20-50RPM，Maximum air volume 13185m³/min；Rated power 1.25 KW；Noise standard：40dB：Voltage 220V，380V。
Driving device
Sino foreign joint venture patent permanent magnet BLDCM，Accurate motor operation,Built in over-current protection is adopted inside the motor，Greatly improved the stability of the motor，All motors are driven by FOC algorithm，UP to 40% more energy-saving than traditional motor,imported reinforced roller bearing
High efficiency fan leaf
6 wing type simulation patent blades，Unique aerodynamic blade design，The wind is bigger、Higher air supply efficiency、More coverage。To prevent blade deformation，Surface treatment by fluorocarbon spraying and natural color anodizing，Three sets of stiffeners inside the fan blade，Avoid sagging and deformation of leaves。
Frame
Unique frame design：High strength structural steel treated by PVDF fluorocarbon spray。Make the installation simpler and firmer。
Security components
DIN933 bolt standard，Level12.9，DIN125Alock nut；6mm Hot galvanized steel wire lock，L-shaped link of fan wings makes all the blades connected as a whole；All components are certified by a third-party testing company.
Clip holder
Anti slip groove design and split pin locknut completely avoid accidental falling off of steel beam clamp device，No need to drill ang weld。
Schematic diagram of installation conditions
1.Fasteners:All fasteners are made of high-strength industrial bolts with actual stress of more than 10 times.
2.Steel wire traction:the stress intensity of each steel cable can reach 1000KG,and double protection is at each connection point
3.Fan main body protection structure:fan safety ring,accidental occurrence,safety ring to protect,prevent any parts from sliding.
4.Fan blade i security structure,which links all the fan blades ang chassis togetier again,becomes the whole structure.
5.Automatic alarm stop operation of accidental frequency conversion
