Dongguan Shengzhirong Electronics Co., Ltd. (SZR)
SZR is a privately-owned enterprise based in Dongguan City, established in 2012. We specialize in brushless motor products, which comply with international safety certifications such as CE and UL. SZR has also earned ISO 9001:2015 quality management system certification. Our fan brand, "SZR," represents the high standards we uphold.
SZR boasts a professional R&D, design, and production team dedicated to the development, manufacturing, and sales of medium- to high-end brushless fans, cooling fans, EC fans, miniature fans, DC blowers, waterproof fans, and brushless motors. Our product range includes axial flow, centrifugal, and backward curved fans. These products serve a wide array of industries, including photovoltaic, energy storage, new energy, servers, new-energy industrial equipment, communication devices, medical equipment, instruments, stage lighting, chassis cabinets, industrial power supplies, and ventilation and cooling systems.
Our company is equipped with industry-leading R&D and testing equipment, including salt spray test equipment, high and low-temperature testing machines, airflow and wind pressure testing systems, spectral testers, and more. This ensures that we consistently deliver reliable and cutting-edge products.
Certificates
ZSR's Strength in the Cooling Fan Industry
ZSR is a leading force in the cooling fan industry, and our extensive range of certificates is a testament to our unwavering commitment to quality and excellence. With ISO9001:2015 certification, we ensure strict quality management processes. The TCT Certificate of Compliance, ATL Test Report, ATL FCC Test Report, ATL EC Certification of Conformity, and IP68 Certificate of Conformity further validate our products' reliability and performance. Our fans are designed with precision, offering excellent heat dissipation and durability.
Choose ZSR for your cooling fan needs and experience the strength of a trusted industry leader.
Workshop
Series of AC/DC Cooling Fans
Production Equipment
Automated assembly equipment, injection molding machines, acoustic test equipment, performance test machines, durability test machines, temperature and humidity test chambers, and precision testing instruments.
Equipment (Cont'd)
- Advanced production equipment, mature production process protects your products.
- Imported wind tunnel experimental tester - Testing data more accurate
- Automatic wave soldering machine makes product performance more stable
- Scorch filament tester ensures the safety of axial flow fans
- Programmable constant temperature and humidity testing guarantees the quality of axial flow fans
Fan Structure Diagram
- Energy saving and low power consumption powerful –
- Impellers/Fan blades: adopting high-strength PBT material, high strength, good temperature resistance coefficient, not easy to be deformed, strong wind power, good mute effect.
- Magnetic frame: adopts the latest riveting process technology, strong institutional stability, good heat dissipation, high temperature resistance, not easy to deform.
- Ball bearings: 2 ball bearings are used for reduced friction, long service life and super quiet.
- Motor: made of 0.35mm sheet stamped silicon steel, wound by pure copper wire and double-sided glass fiber board and imported components, high temperature resistance, low energy consumption, high efficiency.
- Fan frame: the middle axis of the frame is made of CU304 pure copper material with high precision, good heat dissipation and strong structural stability.
Made of high-strength PBT material, featuring high strength, good temperature resistance, non-deformation, strong airflow and excellent quiet performance.
Adopts advanced riveting process for robust structural stability, good heat dissipation, high temperature resistance and anti-deformation.
Equipped with 2 ball bearings to reduce friction, delivering long service life and ultra-low noise.
Constructed with 0.35mm stamped silicon steel sheets, pure copper windings, double-sided fiberglass board and imported components. High temperature resistant, low power consumption and high efficiency.
The central shaft of the frame is precision machined from CU304 pure copper. High precision, good heat dissipation and strong structural stability.
Product structure
Processing technology structure display
Can be designed according to your requirements
- 15% increase in airflow at the same speed
- 94V-0 material
- Thickened steel sheet to improve the effect
- Dust-proof design
- Dual Balls for Extended Life
- Copper center tube fan balance at high speeds
Motor iron shell / All-in-one cooling / Copper base fan frame
Ball / Sleeve / Hydraulic Bearings are available
Long-term high-speed operation, low noise, high bearing precision, low running friction, low heat generation, long service life.
Ball Bearing, Sleeve Bearing, Hydraulic Bearing
* Ball Bearing:
- Difference: Consists of metal balls that roll between inner and outer rings.
- Characteristics: Durable, can handle high speeds, and has a long lifespan. Good for applications that require high performance and reliability.
* Sleeve Bearing:
- Difference: Uses a smooth sleeve or bushing for the shaft to rotate in.
- Characteristics: Quiet operation, relatively inexpensive. Less durable than ball bearings at high speeds and may wear out faster.
* Hydraulic Bearing:
- Difference: Incorporates a special fluid-filled chamber to reduce friction.
- Characteristics: Extremely quiet, provides good stability and smooth operation. Offers a longer lifespan compared to sleeve bearings.
Detail Display
Higher quality durable use, quality assurance, trustworthy
Thickened fan blade/impeller
High-strength and high-toughness fan blade, one-time injection molding, long use, not easy to deformation and breakage; not only has a strong wind and effectively reduce the noise.
Full copper motor
The fan is made of pure copper core, the motor is of better quality and more durable. Pure copper wire resistance is small, good conductivity, not easy to break.
Thickened fan blade
PBT material fan blade, one-time injection molding, long service time, not easy to break also effectively reduce noise.
PBT material
Rigorous selection of fan frame materials to strengthen the toughness of the frame and enhance the fan's stabilizing effect.
Good heat dissipation
Wide range of applications with fast cooling, high and new technology noise reduction processing, high speed can also maintain stability and reliability.
Operational stability
A variety of models can be customized, long-lasting stable operation, suitable for long-time work.
Product Component Details
Structural stability
The insulated wire frame adopts advanced over-molding technology and octagonal design, which perfectly combines with the motor core, PCB board and frame to enhance the insulation performance and structural stability.
The iron core is made of 0.35MM/sheet of iron core material provided by Nippon Steel, which is flat, low temperature rise, low noise, high efficiency, stable structure, and not easy to be rusted.
PCB board
The combination of double-sided fiberglass material and imported chips makes the whole fan with low power consumption and stable performance.
High efficiency and energy saving
The copper wire of the motor is made of pure copper with high temperature resistance coefficient and insulating immersion treatment, which reduces the noise and improves the temperature resistance coefficient at the same time.
Terminals for your choice
Finished product support customized terminal wire 2P, 3P, 4P
Just let us know the terminal model and wire number you need, and we'll provide matching terminals.
Service Process
Industry Field - Applicable to a wide range of electrical equipment
Widely used in all kinds of household appliances, heaters, health care equipment, outdoor lighting, frequency converter, all kinds of power supply, welding machine, oil cooler, water cooler, spark machine, communication equipment, stage lighting, medical equipment and other equipment that need heat dissipation, ventilation, transmission.
Packaging & Shipping
