The 17251 big size DC axial fan is a large-specification industrial-grade cooling fan with a size of 172×150×51mm, which is favored by the industry for its large air volume, high wind pressure, strong heat dissipation capacity, and stable operation performance. As a mainstream large-size DC heat dissipation device, it fills the market gap of small and medium-sized fans with insufficient heat dissipation capacity for high-power and large-volume equipment. It is specially designed for industrial equipment, large electronic cabinets, and high-power electrical systems that require high air volume and efficient heat dissipation, and is one of the most widely used standard industrial cooling fan specifications in the industrial heat dissipation field.

In terms of structural design, the 17251 DC axial fan adopts a thickened and reinforced integral frame structure. The high-strength aluminum alloy or high-quality engineering plastic frame has strong compression resistance, shock resistance, and structural stability, and will not deform or shake during long-term high-speed operation. The fan is equipped with 7/9 high-precision streamlined blades. Through professional aerodynamic simulation optimization, the blade angle and radian are precisely adjusted, which effectively reduces airflow turbulence and running noise, and maximizes air volume output. The built-in double-ball bearing structure ensures ultra-low mechanical friction, supports long-term continuous operation, and the service life can reach more than 50,000 hours, far exceeding ordinary small-sized fans. The standardized mounting hole design is compatible with most industrial equipment cabinets and heat dissipation equipment on the market, with simple installation and strong versatility.

In terms of core performance parameters, the 17251 big size DC axial fan supports multiple DC voltage specifications such as 12V, 24V, and 48V, which can meet the power supply requirements of different industrial equipment. Its air volume range is up to 180-350 CFM, and the wind pressure is far higher than that of conventional small-size fans of the same type. It can quickly take away a large amount of heat generated by high-power equipment, realizing rapid cooling and efficient heat dissipation. The fan adopts a high-efficiency brushless DC motor, which has high energy conversion efficiency, low power consumption, and low heat generation during operation. It supports PWM stepless speed regulation, manual speed regulation, and temperature linkage automatic speed regulation. The speed can be freely adjusted within the range of 1000-3800 RPM according to equipment heat dissipation requirements, which can not only meet the high-power heat dissipation demand of full-load operation but also reduce noise and energy consumption during low-load operation.

In terms of safety and durability performance, the 17251 large DC axial fan has built-in multiple protection mechanisms, including locked-rotor protection, over-current protection, over-voltage protection, and over-temperature protection. When the fan is blocked, overloaded or abnormally powered on, it will automatically power off and protect itself to avoid motor burnout and equipment failure. The fan undergoes strict aging testing, vibration testing, and high and low temperature testing before leaving the factory, and can operate stably in the environment of -20℃ to 75℃, adapting to various harsh industrial working conditions. The surface of the fan frame is treated with anti-corrosion and anti-oxidation coating, which can resist the erosion of industrial dust, moisture, and mild corrosive gas, and maintain stable performance for a long time. In addition, the fan has low vibration and low noise design, effectively avoiding resonance noise generated by high-speed operation, and meeting the noise control standards of industrial workshops and indoor equipment.

The application scope of 17251 big size DC axial fans covers almost all industrial high-power heat dissipation scenarios. In the field of power equipment, it is widely used for heat dissipation of high-power power supplies, inverters, UPS power supplies, and distribution cabinets. In industrial automation equipment, it is applied to industrial control cabinets, servo equipment, and large mechanical equipment cooling systems. In new energy fields such as energy storage power stations and photovoltaic inverters, it provides continuous and stable heat dissipation for high-energy-consumption modules. In communication equipment, it cools down large communication base stations, server cabinets, and signal transmission equipment. At the same time, it is also commonly used in industrial ventilation, fresh air equipment, large-scale air conditioning equipment, and mechanical equipment heat dissipation. Relying on its superior large air volume heat dissipation performance, stable quality, and high cost performance, the 17251 DC axial fan has become the preferred large-size heat dissipation device for industrial manufacturers, and has extremely high market popularity and application value.