Polyester PTFE Membrane Filter Bag

PTFE Membrane Polyester Needle Felt Filter Bags for Industrial Filtration

Our PTFE membrane polyester needle felt filter bag combines durable polyester substrate with microporous PTFE membrane, delivering ultra-high dust capture efficiency, excellent chemical resistance and easy pulse-cleaning performance. Ideal for high-precision dust filtration across cement, steel, and chemical industries.

Product Overview

Our PTFE membrane polyester needle felt filter bag is a premium industrial filtration solution engineered by laminating a microporous PTFE membrane onto a high-strength polyester needle felt substrate. The polyester needle felt provides robust mechanical stability and high dust-holding capacity, while the PTFE membrane acts as a barrier to capture submicron dust particles with nearly 100% efficiency, preventing dust penetration into the felt matrix. Designed to withstand continuous operating temperatures up to 130℃ (short-term peak 150℃), this filter bag exhibits good resistance to weak acids and alkalis, and its surface is hydrophobic and oleophobic, enabling effortless pulse jet cleaning and reducing maintenance frequency. It is a go-to choice for high-precision dust filtration in cement kiln, steel smelting, chemical processing, and waste incineration industries, aligning with international quality standards adopted by leading global filter manufacturers.

Core Features

1. Ultra-high Submicron Filtration Efficiency: Microporous PTFE membrane captures 0.1–1μm dust particles with over 99.9% efficiency, meeting strict emission standards.

2. Dual-layer Durability: Polyester needle felt substrate ensures high tensile strength and dust-holding capacity; PTFE membrane adds chemical and thermal stability, extending service life by 2–3 times compared to standard polyester filter bags.

3. Easy Pulse-cleaning Performance: Smooth PTFE membrane surface prevents dust adhesion, enabling thorough cleaning with lower compressed air consumption and minimal fiber damage.

4. Versatile Chemical Compatibility: Resistant to weak acids, weak alkalis, and organic vapors; suitable for complex industrial environments where standard filter bags fail to perform.

Technical Parameters