Structure: The coated polyester filter cartridge utilizes a high-quality polyester filter medium as its base, with a specialized film applied to the surface. This film, commonly made from polytetrafluoroethylene (PTFE), offers exceptional chemical stability and physical properties, ensuring reliable performance in demanding conditions.

Material: The polyester substrate itself provides excellent mechanical strength and abrasion resistance, while the PTFE coating enhances filtration precision and extends the cartridge's operational lifespan. Additionally, selected models incorporate imported composite long-fiber spunbond polyester non-woven fabric, further boosting filtration efficiency and durability.

High-Efficiency Filtration: This filter cartridge delivers exceptional capture efficiency for ultrafine and specialty dust, achieving >99.8% removal for particles larger than 0.3µm. The smooth PTFE membrane effectively intercepts and adsorbs microscopic contaminants, ensuring superior air quality.

Low Resistance Loss: Thanks to the outstanding air permeability of the PTFE layer, the cartridge exhibits minimal resistance during operation, maintaining stable filtration performance over extended periods without significant pressure drop.

Long Service Life: Manufactured through a specialized process, the cartridge features a smooth, wear-resistant surface that withstands tearing and scratching from abrasive powder particles. Its easy-clean design further prolongs service life, reducing replacement frequency.

Corrosion Resistance and High Temperature Tolerance: The PTFE coating provides robust chemical corrosion resistance, effectively protecting against acids, alkalis, and other corrosive agents. Combined with the polyester substrate's inherent high-temperature tolerance, the cartridge performs reliably across a broad temperature range (-30°C to 105°C).

Easy Installation and Maintenance: Designed with a modular structure, the cartridge enables quick and convenient installation or replacement. Its easy-to-clean surface minimizes downtime and reduces overall maintenance costs.

Coated polyester filter cartridges are extensively employed in industries such as welding fume extraction, shot blasting and casting, pharmaceuticals, cement production, tobacco processing, textiles, and more. In each application, these cartridges effectively purify the air, safeguard the environment, and enhance manufacturing efficiency.