EnglishAdding an ePTFE membrane to an aramid filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the life of your filter bag. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.
Our filter bags are designed based on actual site conditions, not generic catalog assumptions. We help you select the right media to balance filtration efficiency, pressure drop, and service life.
Aramid/Nomex needle felt is a high performance filter material used in industrial filtration applications requiring high temperature, chemical resistance and tensile strength.
In addition, nomex needle-punched felt also has the advantages of good air permeability, high dust collection efficiency, large dust holding capacity, and long service life.
Learn About Aramid/Nomex Filter Bags
| Characteristics | Rating |
|---|---|
| Fiber Content | 100% Virgin Aramid |
| Fabric Construction | Needle felt |
| Weight | 450-550g/m² (13.3–16.2 oz/yd²) |
| Thickness | 1.8-2.2mm (0.071–0.087 inch) |
| Air permenability (m3/m2/min) | 22-26(±20%) |
| Continuous Operating Temperature | 204°C (400°F) |
| Maximum Surge Temperature | 250°C (482°F) |
| Abrasion Resistance | Good |
| Acid Resistance | Good |
| Alkali Resistance | Good |
| Moist Heat Resistant | Good |
| Energy Absorbsion | Good |
| Filtration Property | Excellent |
| Oxygen (15%+) | Poor |
Post-treatment: Heat Setting / Singeing / Glazing/ Low Adhesion Treatment
Through a post-treatment process, we apply a specialized chemical solution (developed in-house) tothe filter media, which imparts enhanced water and oil repellency.
Reinforced Low Adhesion
Regular Water&Oil Repellence
No Treatment
+30%
Water & Oil Repellence
+20%
Dust Release
The Aramid needle felt low-emission series, designed specif-ically for asphalt mixing plants, utilizes high-qualityultra-fine materials and optimized needle punchingtechnology to provide you with a durable and effi-cient dust control solution, helping you achieve bothproduction and environmental standards!
Low Emission
Smaller pore size and even pore size distribution
allow flter bags to intercept fine dust particles and
achieve higher fltration efficiency.
Longer Lifespan
Compared to conventional material,it has superil
abrasion resistance(10-30% improvement), and
longer cleaning interval (5-25% improvement).
Energy Savings
The optimized air permeability and lower operating resistance of the filter media work together to effectively decrease energy consumption, thereby leading to significant reductions in operation costs.
Asphalt Mixing Plants
Steel & Metallurgy
Chemical & Mining
Power Generation
New energy sector
Cement Kilns and Clinker Coolers
Tell us your working conditions, and we will recommend the best solution within 24 hours.
Free Sample (Quality Testing Available)
Fast Delivery 7–15 Days
Factory Direct Price
From Sample Analysis to Engineered Filter Solutions
Sample Analysis & Application Review
R&D & Material Engineering
Filter Bag & Cage Design
Fast & Transparent Quotation
Material specification
Unit price & MOQ
Lead time and delivery terms
Sampling & Confirmation
Manufacturing, QC & Delivery
We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.
Raw material quality control
The raw materials of Aokai have undergone tests for 13 indicators in the laboratory, including fiber composition, air permeability, breaking strength and elongation at break, thermal shrinkage, moisture regain, oil content, and fiber melting point, with all test standards surpassing the relevant criteria.
Production process quality control
The factory has obtained ISO9001 and ISO14001 certifications. It operates in accordance with the 7S management standards, strictly controls product quality in line with international high-end product testing standards, retains inspection records for more than 3 years and electronic records permanently, ensuring the traceability of each batch of products.
Aokai Environtec is a leading manufacturer of baghouse filter cloth, filter bags,filter cage. Founded in 2004 and headquartered in China, our products are used in a variety of applications and industries, including asphalt mixing plants, cement plants, mining operations, power generation plants, metallurgy industry, renewable energy industry, waste incineration plants, and other industrial facilities. Our mission is to make the world a cleaner and better place by protecting people, the planet, and production from the harmful effects of industrial processes.
Annual Filter Bag Production
Annual Filter Media Production
Annual Cage Production
Smart Warehousing
From Fiber to Filter: Full Control of Quality
Raw Material Selection
Mixing and Pretreatment
Intelligent Spinning & Web Formation
Precision Needle Punching Molding
Heat Setting
Singeing Treatment
Membrane Lamination
water/oil repellency
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