BOREASIII series of product developed by KALE ENVIRONMENTAL is based on the development of the PMSM (permanent magnet synchronous motor) technology. The maximum diameter can be up to 7.3 meters. The product combines aerodynamic technology, transmission dynamics, PWM control technology, mechanical mechanics, simulation technology, communication control, industrial design and other comprehensive disciplines. It can promote the circulation of air flow in high efficiency, achieve the purpose of lowering the temperature of personnel, and greatly improve the environmental comfort.


Sports Industry
Fitness center, gym
Large amusement park, zoos & arboretums, children’s play ground
Traffic Hub
Airport, high-speed rail station, bus station, metro station, wharf
Commercial Places
Exhibition center, car showroom, large terminal market, supermarket.


Use high-strength material, such as forged steel, aircraft grade aluminum, solid & safe.
Use fluorocarbon paint technology, high gloss in appearance, brilliant under the light.
High Capacity of heat-transmission
Featured turbine air-suction effect, improving heat-dissipation.
Use the most qualified components, ensure more than 15-year service life.
Large-scale production, high-integrated, decline in cost, fancy but not expensive.

Main Components Tech

PMSM Motor

1.300N.M torque which is the most powerful PMSM motor and can drive huge volume air.

2.Dynamic, highly efficient, long-life, low noise, and wide rang of speeds.

 3.Free maintenance forever, no need to change oil regularly.

 4.Smaller size and lighter weight.

Control System

Schneider brand electrical sets, with building safety protection module which will shut down the output automatically in case of some accidents.

Germany brand control cabinet, passed EMC by SGS and CCC certificates, meanwhile, passed anti-creeping tests which shields electromagnetic interference effectively.

Protection level is IP55, passing UL, EMC,LVD, ROHS certificates.

Fan Blade

 1. High strength aircraft grade magnalium, fluorocarbon   painting on surface, aerodynamic fan blade design.

 2. Patented Kale Airfoil Blades™:  3 sets reinforcing rib supports system inside, enhance the   strength of fan blades and avoid sagging of fan tail and   fatigue loss of connecting components.

Connector for fan blade

KALE unique patented jacket-type connector adopt three cold forging process + magnetic force grinding process + anodic oxidation process, aviation hard aluminum 7050 aging heat treatment, certificated by the national quality inspection center, it bears more than millions of times of fatigue experiment, completely solve the break and drop problem caused by long time running!


The kind of empennage is always seen among airplanes and motorcycle races, but it’s not designed for beauty. Eddies will be formed in the end of the streamlined fan blade while airflow is running. With winglet, this part of energy loss will be avoided,fan will run steadily, which will bring economic effect.


Model Size Air volume Max speed Fan weight Power Full load current Noise level
HVLS-D4AAA73 24ft(7.3m) 13100m³/min 50RPM 113kg 1.3Kw 4.7Amps/220V <40.0dB(A)
HVLS-D4AAA61 20ft(6.1m) 12200m³/min 60RPM 108kg 1.2Kw 3.7Amps/220V <40.0dB(A)
HVLS-D4AAA55 18ft(5.5m) 11500m³/min 65RPM 104kg 1.0Kw 3.0Amps/220V <40.0dB(A)
HVLS-D4AAA49 16ft(4.9m) 10700m³/min 75RPM 100kg 0.9Kw 2.6Amps/220V <40.0dB(A)

Installation Condition

We have an experienced engineering team on elctricity, machanism and architecture who will provide the most reasonable installation plan for different structures according to stress analysis, and can install fans for qualified structures.

We all know that intallation is a very vital process, so during it, strict norms & installation standards and our profession must eliminate all your doubts.

1、Customized installation plan;

2、Well-equipped with life truck;

3、Rich experience to debug the level, height and balance;

4、Dynamic balance test,make sure to run steadily;

5、Fasteners with torque standard, achieve the best fastening;

6、Brief & scientific installation process.


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