After introducing the negative pressure fan for so long, you must have learned a lot about the negative pressure fan. Today we introduce to you what parts and accessories of negative pressure fan and how to judge whether it is good or bad, I hope to help you!

1. Negative pressure fan parts and accessories

1. Motor

Motor is the heart of negative pressure fan. The belt-type motor is generally an ordinary motor, but the Suji brand FRP negative pressure fan is independently developed and produced for supporting the Suji fan, with built-in automatic protectors for overcurrent, overload, and phase loss; while the direct motor is a negative pressure fan Dedicated 12 pole dustproof and waterproof aluminum shell motor;

2. Fengye

The blades of negative pressure fan are divided into: aluminum alloy, glass steel, aluminum-magnesium alloy die-casting molding, nylon plus iron and other materials. The material of the blade is determined according to the place of use. At present, the glass fiber reinforced plastic fan blades used in the market are more wear-resistant, will not deform, break, scientific radian design, large air volume, low noise and low wind resistance.

Second, how to judge whether the negative pressure fan is good or bad?

1. Looking at the appearance, the general shape with good quality is relatively neat and will not be skewed.

2. Depending on the thickness of the casing, the negative pressure fan generally uses an iron sheet as the casing, and the general materials with good quality are much thicker

3. Look at the quality of the motor, fan blade and other accessories. The motor should be good enough, whether it is all copper wire, and whether the fan blade is not easily deformed.

In fact, laymen are generally more difficult to distinguish, so as long as you remember some of the better, negative pressure fan brands, and specify to buy these brands of machines, you will usually buy good goods.