JS Series Low Noise Square Negative Pressure Axial Flow Fan With Louver

Product advantages and uses:
JS series negative pressure fan uses air convection, negative pressure ventilation and cooling principle, with CAD/CAM optimization design and manufacturing, high total pressure, large air volume, low noise, not only less power consumption, stable operation, long service life, cooling effect is also very significant.

The shutters can be opened and closed automatically, which is beautiful and generous while also being dustproof and waterproof. Moreover, the fan supports horizontal and longitudinal ventilation, can quickly inhale fresh air from the door or window facing the installation site, discharge indoor hot air and odor, effectively improve the problem of poor ventilation, and is an ideal choice for indoor and factory cooling and ventilation.

Main structure description:
This fan with outstanding design and material selection, performance is professional. The shell adopts 1 mm thick aluminum-plated zinc plate, beautiful and corrosion resistant, the inner liner is formed once, and the stability is strong. The fan drive pulley and blade seat are made of cast aluminum alloy, rust-resistant and easy to assemble. The central drive belt is supported by double-row ball bearings. The V-shaped belt is easily adjusted, and the tightness can be adjusted by twisting the adjustable bolt on the air inlet side. It is suitable by pressing the middle of the belt 15- 20 mm.

The unique design of the fan blade, while generating strong airflow impact, maintains low noise operation, six blades through strict balance test, almost no vibration operation. The heat dissipation structure of the motor is reasonable, and the service life of the whole machine is extended effectively. In addition, the fan is equipped with a unique 100 blade automatic switching system, with the help of two unpowered rotary weights and automatic devices to achieve switching operation.