High efficiency Fiber Filter Bag

Haina Environment · High-efficiency Filter Bag Series — Injecting "Core" Power into Industrial Flue Gas Treatment

On the battlefield of air pollution control, filter bags are the "heart" of bag dust collectors. Their performance directly determines whether the emissions meet the standards, whether the operation is stable, and whether the maintenance cost is controllable. Yixing Haina Environmental Engineering Co., Ltd. has been deeply involved in the environmental protection field for 30 years. Relying on a profound understanding of working conditions and the accumulation of more than 50 patented technologies, it has launched a full range of high-performance filter bag solutions, specially tailored for complex flue gas environments such as coal-fired, biomass, and solid and hazardous waste incineration.

Why choose Haina filter bags?

We don't just sell filter bags; we also provide long-term stable operation guarantees. Each filter bag is the crystallization of scientific material selection, precise craftsmanship, and practical experience.

Core Product Matrix · Precise Matching for Various Working Conditions

Filter Bag Type Recommended Application Scenarios Core Advantages

Expanded Glass Fiber (High-silica Modified Coated) Biomass boilers, industrial kilns, coal-fired boilers 

✅ High temperature resistance up to 260°C (instantaneous 280°C)

✅ Strong oxidation resistance, perfect for the high-oxygen environment (9 - 14%) of industrial boilers

✅ Waterproof, oil-proof, acid and alkali resistant, and excellent wear resistance

✅ The collection efficiency of ultra-fine dust below PM2.5 is over 99.9%, and the emissions can easily be < 10mg/Nm³

✅ Not afraid of sparks, eliminating the risk of "bag burning"

PTFE (Polytetrafluoroethylene) Perfluorinated Filter Bags Waste incineration, hazardous waste treatment, chemical tail gas 

✅ Corrosion resistance across the entire pH range, resistant to extremely corrosive gases such as hydrofluoric acid

✅ Continuous temperature resistance of 240°C, instantaneous 260°C

✅ Self-lubricating, non-hygroscopic, and anti-ultraviolet

✅ Excellent chemical stability, long service life, suitable for extremely harsh working conditions

PPS (Polyphenylene Sulfide) Filter Bags Power station boilers, low-sulfur coal-fired working conditions 

✅ Moderate cost and high cost-effectiveness

✅ Good chemical corrosion resistance, suitable for flue gas with low sulfur content

✅ Long-term operating temperature of 160 - 180°C

Fumaisi Series (Containing Aramid/Polydron) Coal-fired and biomass mixed fuel boilers 

✅ Better temperature resistance than ordinary filter materials, up to 240 - 260°C

✅ Economical and practical, suitable for medium and high-temperature working conditions

Friendly reminder: We will accurately recommend the filter bag model for you based on your fuel type, flue gas humidity, oxygen content, acidity and alkalinity, and emission standards to ensure that you "use the right one, use it well, and use it for a long time."

⚙️ Strict Process · Forging the Soul of Quality

· Selected raw materials: Strategic cooperation with high-quality suppliers, eliminating inferior outsourced materials, with a false-one-punish-ten policy.

· Military-grade anti-corrosion: The inner wall of the box uses a double-layer anti-corrosion coating of "Easy Coating Shield" (thickness 120 - 200μm), far exceeding the conventional coatings on the market.

· Intelligent manufacturing: Laser cutting and robot welding ensure structural accuracy.

· Professional sewing: Using the three-needle six-thread industrial sewing process, the seams are firm, with high tensile strength, eliminating the risk of bag falling.

· Full-process quality inspection: From the warehousing of raw materials to the shipment of finished products, it goes through 12 inspection links to ensure that every meter of filter material can stand the test.

Operation and Maintenance Support · Making Customers Worry-free

· Warranty period: The filter bags and cages are guaranteed for 2 years (non-human damage, non-abnormal working conditions).

· Scientific selection suggestions:

o If the emission requirement is ≤ 50mg → Select 30mg-grade filter materials.

o If the emission requirement is ≤ 30mg → Select 20mg-grade filter materials.

o If the emission requirement is ≤ 10mg → High-precision coated filter materials of 5mg grade must be selected.

· Air leakage prevention design: Sealing with asbestos rope for flanges, filling with ceramic fiber cotton for the top cover, and linkage of electric star unloaders to eliminate the efficiency decline caused by system air leakage.

Our Commitment

"Not all filter bags can be called 'durable'."

We adhere to: Not competing on low prices, but speaking with strength.

Haina filter bags have been operating stably on thousands of dust removal equipment, helping customers achieve ultra-low emissions, energy conservation and consumption reduction, and extending the maintenance-free period by more than 30%.

Customize Your Exclusive Filter Bag Solution

Whether you need complete machine matching or replacement and upgrade, we can provide free technical consultation, working condition analysis, and sample trial services. Let every cooperation be the beginning of long-term trust.

Manufacturing & Production Capacity

After-Sales Service

Haina provides on-site installation, commissioning and technical training.Regular follow-up inspections are arranged after project delivery to support long-term operation stability.