Permanent Magnet Direct Drive-Jiangsu Hawai Environmental Protection Technology

Permanent Magnet Direct Drive

HVLS Fans

Permanent Magnet Direct Drive

Large ceiling fans are also known as: industrial large ceiling fans, industrial fans, and HVLS fans.

1. HVLS fan has low speed, large air volume, large radiation range, the maximum diameter of the fan blade is 7.3M, the coverage area is approximately equal to the coverage area of 50 0.75M small fans, the maximum air volume is 13100m³/MIN, the coverage area is 1500㎡, and the power is only 1.5KW
2. Personnel cooling: The natural breeze generated by the HVLS fan blows on the human body, promotes the evaporation of sweat and takes away the body heat, cooling the human body and bringing a comfortable and cool feeling.
3. Natural ventilation: The large radiation range of HVLS fans effectively enhances the orderly movement of airflow in the space, promotes air mixing throughout the space, and cooperates with negative pressure fans to achieve better natural ventilation and cooling effects.
4. Dehumidification and dehumidification: At present, warehouses mainly use pallet loading, carton packaging, etc. When the air humidity is high, it is easy to cause problems such as cartons deterioration and softness, pallet pallets being damp and deformed, and the ground being slippery. The use of HVLS fans can solve the problem.
5. Installation conditions: H-shaped steel, I-beam, steel-concrete square beam, ball column and other structures are acceptable. The building height is required to be greater than 4.5M, and the minimum safety distance between the fan blades and obstacles is not less than 0.2M.
6. Application occasions: widely used in industrial plants, logistics warehousing, waiting rooms, exhibition halls, gymnasiums, supermarkets and other tall spaces.

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Specifications

XWY-HVLS-36WSⅡ

XWY-HVLS-49WSⅡ

XWY-HVLS-61WSⅢ

XWY-HVLS-73WSⅢ

Model	Diameter	Air volume	Power	Voltage	Maximum speed	Wind noise	Application area	Optimal installation height
	(MM）	(M³/MIN）	(KW)	(V)	(R/MIN）	(DB)	(㎡）	(M)
XWY-HVLS-36WSⅡ	3600	≥10500	1.1	220/ 380	110	≤48	280	4-5

Model	Diameter	Air volume	Power	Voltage	Maximum speed	Wind noise	Application area	Optimal installation height
	(MM）	(M³/MIN）	(KW)	(V)	(R/MIN）	(DB)	(㎡）	(M)
XWY-HVLS-49WSⅡ	4900	≥12800	1.1	220/ 380	85	≤48	380	5-6

Model	Diameter	Air volume	Power	Voltage	Maximum speed	Wind noise	Application area	Optimal installation height
	(MM）	(M³/MIN）	(KW)	(V)	(R/MIN）	(DB)	(㎡）	(M)
XWY-HVLS-61WSⅢ	6100	≥13500	1.2	220/ 380	60	≤48	750	6-9

Model	Diameter	Air volume	Power	Voltage	Maximum speed	Wind noise	Application area	Optimal installation height
	(MM）	(M³/MIN）	(KW)	(V)	(R/MIN）	(DB)	(㎡）	(M)
XWY-HVLS-73WSⅢ	7300	≥14339	1.2	220/ 380	60	≤48	800	7-10

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Core components

Permanent Magnet Direct Drive Motors

Safety Technology

New Fan Blade

Control Technology

Permanent Magnet Direct Drive Motors

Feature 1: High efficiency. Using advanced electromagnetic design, the efficiency reaches the IE4 energy efficiency standard. According to the "GB30253-2013 Energy Efficiency Standard for Permanent Magnet Synchronous Motors", it can reach the first-level energy efficiency standard.
Feature 2: High torque. Inner rotor motor, rated torque 206NM, 1.2 times overload capacity, peak torque reaching 250NM, matching the maximum fan diameter of 7.3 meters, taking into account the curvature of the fan blades.
Feature 3: High stability. The motor uses high-quality silicon steel sheets in the industry, with a thickness of 0.035mm, which reduces the eddy current loss of the core, reduces heat generation, and has low temperature rise. The windings have class F insulation and a temperature resistance rating of 150°. The inner rotor has a built-in permanent magnet rotor with high structural strength, which can adapt to high-speed rotation and large torque. The permanent magnets are selected from 180° temperature-resistant grades with high coercive force. The surface is coated with epoxy resin to improve the anti-oxidation ability of the permanent magnets.
Feature 4: Maintenance-free. Xiavi's internal rotor direct drive motor has no gears and uses SKF/NSK bearings, making it truly maintenance-free for life.
Feature 5: Epoxy potting process. This product uses the epoxy resin potting process. The motor windings have better heat dissipation, high structural strength, and are resistant to salt spray, acid mist, metal dust and other corrosion. The winding protection level reaches IP67 and has a longer life. It also targets the industry’s pain points of long wires and environmental protection. Oxygen potting replaces the vacuum dipping process, and the pressure resistance level is qualitatively improved.
Feature 6: High-quality raw materials. All components of the internal rotor motor are sourced from the industry's TOP3 supply chain, and the upper and lower end covers are integrally die-cast by a 500-ton precision die-casting machine.

Safety Technology

The core of HVLS fan safety lies in the connection structure between the chassis and the fan blades. The Xiaviyi HVLS fan chassis adopts 2000T forging and new cutting technology, a round magnesium alloy chassis, and a new patented design of the connecting rod between the chassis and fan blades. It adopts a fully wrapped integral insertion method and four points. The reinforced screws are firmly fixed in place, which is more solid, stable and safe than the traditional two-point upper and lower half clamping method. It is the strongest connection method in history.

New Fan Blade

Using special high-strength aviation magnesium-aluminum alloy materials, the aerodynamic blade shape is efficient and quiet. There are 4 reinforcement systems inside the fan blade, which greatly enhances the strength and fatigue wear resistance of the fan blade and avoids blade damage caused by the long blade length. Safety issues such as end sagging and breakage.

Control Technology

It adopts excellent electrical controller brand, VEICHI variable frequency integrated speed regulator, built-in safety protection module, and the system automatically cuts off the output in case of external force hitting the fan blade or other unexpected situations, effectively reducing the loss of personnel and property due to accidents, and passing UL , EMC, LVD, ROHS authoritative certification. Fool-like simple operation reduces the risk of personnel misoperation and reduces the technical difficulty of use.

Applications