Quality dust collector filter bags manufacturer.Grace Envirotech Co.Trustworthy.

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Zhejiang Grace Envirotech Co. ltd (https://www.dustfilter-bag.com/s ... ust-filtration.html),with the famouse brand "ECOGRACE".Free consultant service and free general technical drawing. We strive constantly to improve our products.Contact number: 86-571-86058862-8008.
In order to improve dust removal efficiency and adapt to different working conditions, two common types of dust removal bags have emerged in the market: coated dust removal bags and non coated dust removal bags. There are differences between the two in terms of materials, filtering efficiency, service life, and applicable scenarios.
1、 Different materials
Ordinary dust removal bags are usually made of fiber materials, such as polyester fibers, polyester fibers, etc. These fibers have excellent filtration performance and wear resistance, making them suitable for dust filtration under general operating conditions. However, the surface of ordinary dust removal bags does not have additional film coating treatment, so dust penetration or blockage may occur under some special working conditions.
In contrast, the coated dust removal bag has been improved on the basis of ordinary dust removal bags. The material surface is treated with film coating, usually using polytetrafluoroethylene (PTFE) or polypropylene film. The addition of a film coating layer makes the dust removal bag have better anti adhesion and corrosion resistance, suitable for working conditions with high temperatures, corrosive gases, or fine dust particles.
2、 Different filtration efficiency
The filtration efficiency of ordinary dust removal bags is usually between 80% and 90%, which is more suitable for the filtration capacity of general industrial dust. However, for some special working conditions of fine dust or harmful gases, the filtration efficiency of ordinary dust removal bags may not meet the requirements.
Due to the advantages of a membrane layer, the membrane covered dust removal bag performs better in terms of filtration efficiency. Its filtration efficiency is usually above 95%, and can even reach 99.9%. This enables the coated dust removal bag to more effectively filter small dust and harmful gases, ensuring the cleanliness and safety of the environment and workplace.
3、 Different service life
Due to the lack of a film covering layer, the surface of ordinary dust removal bags is easily blocked by dust particles, leading to the gradual loss of filtering function of the filter material. Therefore, the service life of ordinary dust removal bags is relatively short and requires frequent replacement.
And the coated dust removal bag has anti adhesion on the surface, which can effectively resist the adhesion of dust. This makes its service life longer than ordinary dust removal bags, reducing replacement frequency and maintenance costs.