Analysis on the difference between retrofit and original cooling fan

It is believed that many customers will ask if the seller is a manufacturer and consult the cooling fan. There are usually two reasons: first, the cooling fans directly sold by manufacturers must be cheaper than entrepreneurs; Secondly, the fans sold by the manufacturer are original, not refurbished. Huaxia Hengtai is a cooling fan manufacturer with 18 years of R&D and production experience. Now let's explain how to distinguish the refurbished fan from the original fan, so that customers can refer to it when purchasing cooling fans.

First of all, we can look at the trademark: the trademark of the original cooling fan is beautifully printed, with uniform color, clear and glossy printing, and a sense of weight; Because the brand of the refurbished fan is informal, the printing quality is poor, the background color is often different, and the handwriting is unimportant. The color will be scratched by gently scraping the trademark surface with your nails, while the original trademark will not affect the nail scratch.

Next, check the fan blades: the surface of the original cooling fan blades will show a matte effect. Fine and uniform particles can be seen in the light, with rough touch; When replacing the fan, the particles on the fan blade surface have been removed and become smooth due to long-term friction with air, so you can see the friction trace.

There are also mounting holes: refurbished fans are used, so the mounting holes will be marked. If a self rotating screw is used, the thread will remain in the hole. If screws and nuts are used, dents will appear on the nuts around the holes.

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