As a dust filter cloth manufacturer, we provide fully customizable fabrics to meet specific application needs. Options include:

We Craft Every Filter Cloth with Care

Our filter cloth 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.

Consistent airflow performance
Stable filtration efficiency
Long replacement cycles
Reduced maintenance downtime

 Needle-Punched Felt Filter Cloth

Needle Punched Felt Filter Media from Aokai Environtec is the essential filtration material for industrial dust collector bags. It captures fine particulates efficiently while maintaining low pressure drop and stable system performance.

Aokai’s advanced needle-punching technology creates a dense, uniform structure that forms a stable dust cake quickly — delivering high filtration efficiency (>99.9%), excellent pulse-cleaning release, and 20–50% longer bag life.

With customizable treatments (singed, calendered, PTFE membrane, antistatic, water/oil repellent, etc.), Aokai ensures low emissions, reduced energy use, equipment protection, and reliable compliance with strict regulations.

100% Pure PTFE Needle Felt

PTFE Filter Fabric

High temperature and chemical resistance up to 260°C. Ideal for waste incineration and chemical processing plants.

PPS Baghouse Filter Media

PPS Needle Felt

Excellent resistance to acid, alkali, and moisture. Widely used in coal-fired boilers and thermal power stations.

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FiberGlass Filter Fabric

Fiberglass filter cloth, with its exceptional ultra-high temperature resistance (up to ) and lasting durability,

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Nomex Fabric

 The operating temperature limit for aramid is 204°C (400°F), Aramid filter bags offer good high-temperature resistance and wear resistance.

Nomex dust filter cloth

Aramid Needle Felt

It resists 240℃ high temperature and is flame-retardant, serving as an efficient filter material for dust removal in metallurgy and chemical industries.

P84 Needle-Punched Felt

Polymide (P84) Filter Fabric

Resistant to 280℃ high temperature with high filtration precision, it is specially designed for dust removal in waste incineration and cement kiln tail.

PTFE Membrane Laminated Polyester Felt

Polyester needle felt

Polyester filter cloth,  Polyester has an operating temperature limit of 135°C (275°F) and comes in both needlefelt and woven media.

Baghouse Filter Media

Acrylic non-woven filter cloth

Good resistance to hydrolysis and suitable for moist environments like municipal waste treatment.

glass fiber filter fabric

Fiber Blend Series

Expertly customized with various fiber ratios, perfectly adapts to diverse operating temperatures and filtration demands。

Antistatic Baghouse Filter Media

Anti-static filter cloth

Anti-static filter cloth safely dissipates static electricity, completely eliminating the risk of dust explosions and providing a more secure and stable dust removal solution for your industrial operations.

Anti-static Polyester Needle Felt

Water and oil repellent filter cloth

Processed by special technology, water and oil repellent filter cloth has excellent water and oil repellent properties. It can effectively prevent dust adhesion and filter cloth clogging, adapt to dust removal scenarios of oily and humid flue gas, and improve both dust removal efficiency and service life.

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Flame-Retardant Filter Cloth

Flame-retardant filter cloth is a specialized fabric used in dust collection filter bags for high-risk environments (e.g., welding, metal grinding, chemical plants).

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Glass Fiber Woven Fabric

石墨玻纤滤袋

Graphene Glass Fiber Needle-Punched Felt

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Polyester + Flame Retardant Fiber Blend

Applications

Aokai  provide custom felt filter cloth solutions for abrasive, corrosive, high-temperature, and explosive dust filtration. 

Waste Incineration

Renewable Energy

Asphalt Mixing

Power Generation

Cement

Non-Ferrous Metals

Related Products

We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.

Custom Dust Filter Bag Solutions

No two plants are the same. That’s why we never offer off-the-shelf answers.
At Aokai, every filter bag is engineered specifically for your operating conditions: dust properties, gas temperature, chemical aggression, and emission targets.

Custom Dust Filter Bag Solutions

Fiber & Treatment: Choose PTFE, P84, Aramid, PPS, anti-static, PTFE membrane, or any blend
Construction: Triple-needle stitching, heat-sealed seams, ultrasonic welding – whatever delivers maximum durability
Fit & Design: Made to the exact millimeter, including special shapes, pleated bags, and integrated cage-bag designs

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PTFE Filter Bags

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Aramid Filter Bags

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Polyester Filter Bags

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Galvanized Steel Filter Bag Cages

骨架集合

Stainless Steel Filter Bag Cages

Envelop Filter Cage

Flat Filter Cage

filter bag cage for air dust collector 1

More>>

Our focus is not just supplying filter bags, but reducing your total filtration cost over time.

Quality & Consistency You Can Rely On

Aokai Laboratory Analysis Services

01

Consistent raw material sourcing

filter media production 4

02

Controlled manufacturing process

Filter Bag Inspection

03

Strict dimensional tolerance

Filter Bag Packaging

04

Each batch inspected before shipment

We have carried out industry university research cooperation with many top universities in China, and developed product series such as “Jiejingda“, “Cabture“, “CareClean” according to the specific working conditions of the industry.

We hold a total of 64 invention and utility patents.

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High performance membraneless low resistance

Gradient structure high performance

High efficiency low resistance needle felt

Life prediction

High mechanical properties

Product digitization R&D

Low carbon and clean material research and development

ISO 14001 Environmental Management System
Environmental Management System Certificate
AAA Credit Rating
AAA Credit RatingCertificate
ISO 9001:2015 Quality Assurance
Quality Management System Certificate

Expert Online:

We have a multilingual international sales and service team fluent in English, French, German, Spanish, Portuguese, Russian, Arabic, Japanese, and Korean, ensuring smooth and efficient communication with clients worldwide.

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Global Sales Engineer Team

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Leadership Team

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Global Technical Team

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R&D Team

Technical Support:

24/7 Technical Support

(Response Time ≤ 4 Hours)

Free Filter Bag Selection Consultation Based onYour Working Conditions (Temperature Humidity/Dust Type)

Aokai Service Director

Serving 16,000+ clients worldwide,Exported to more than 40 countries and regions worldwide.our filter cloth is trusted across cement, steel, power, waste incineration, chemical, and asphalt industries.

We actively participates in the global supply chain service market, and we are committed to providing customers with high-quality products and services to promote local economic development.

OEM Market

Maintenance Market

Global Supply & Trusted Partner

Our flexible supply chain management facilitates fast response-time to meet customer requirements and market changes.

1-Raw Material

Supplier Diversification, Material Sustitutability

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2-Collaboration

Collaborative Demand Forecasting, Custom Solutions

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3-Manufacturing

Quick Line Changeover & Production Switching Multi-Skilled Workforce, Modular Design & Manufacturing

Autefa imported lines with dual-cylinder eight-zone carding

4-Warehousing

Stock 500,000+ m² of common specs (PE, PPS, Aramid, PTFE) -Ship in 48 hours

Large-Scale Warehouse Storage

From Sample Analysis to Engineered Filter Solutions

Our Services

Step 1

Sample Analysis & Application Review

  • Analyze fabric structure and material composition
  • Review wear patterns, clogging or failure reasons
  • Evaluate dust characteristics and operating conditions

Step 2

R&D & Material Engineering

  • Needle felt material selection and optimization
  • Fiber blend, weight and permeability design
  • Surface treatments (PTFE membrane, singeing, glazing)

Step 3

Filter Bag & Cage Design

  • Accurate size and construction
  • Cage wire layout and surface finishing
  • Compatible with pulse jet and cleaning systems

Step 5

Fast & Transparent Quotation

  • Material specification

  • Unit price & MOQ

  • Lead time and delivery terms

Step 4

Sampling & Confirmation

  • Custom samples for testing
  • Performance confirmation before mass production
  • Adjustments based on test feedback

Step 6

Manufacturing, QC & Delivery

  • All products are manufactured under strict quality control and shipped with export-ready packaging.
    Ongoing technical support is available after delivery.

Our Manufacturing Strength

With over 21 years of experience, our production facility covers more than 27000 m² and is equipped with advanced filter media and bag-making equipment to ensure consistent quality and high efficiency.

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Years of Experience
1
㎡ – Modern Production Base
1
Customers Worldwide
1
Exporting Country

Custom Manufacturing

4,000,000㎡

Annual Filter Media Production

  • Automatic Production Lines
  • Oil & Water Repellency Treatment
  • Heating Setting
  • Singeing
  • Calendering
  • Lamination

3,000,000 pcs

Annual Filter Bag Production

  • Automatic Multi-Task Production Lines
  • Precision Sewing
  • Heat Sealing
  • Pinhole Sealing
  • Seam Lamination

2,000,000 m

Annual Cage Production

  • Filter Cages of All Shapes & Sizes
  • Cage Treatments
  • Silicone Coating
  • Galvanizing
  • Passivation (stainless steel)

Advanced Manufacturing Equipment & Technology

Partnering with a reputable and industry-leading needlefelt equipment manufacturer from Germany, Aokai operates two advanced needlefelt production lines. From fiber opening to blending, carding, web forming, crosslapping, needle punching, filter media treatment, and ePTFE lamination, we manufacture baghouse filter media in-house to ensure the highest manufacturing standards.

Lean Intelligent Manufacturing

We adopt high-performance fibers from world-renowned brands and conduct rigorous 13-item laboratory testing, including fiber composition, breaking strength, thermal shrinkage, and more.

Raw Material Selection

Raw fibers are precisely weighed and scattered by automatic equipment, then thoroughly opened and cross-blended in high-speed multi-chamber air mixing system. Fiber uniformity reaches over 98%, providing a stable foundation for high-quality needle felt production.

Mixing and Pretreatment

Equipped with German Autefa intelligent production lines, high-frequency high-speed needle punching machines, and imported Groz-Beckert needles, we achieve a high-speed web output of 100m/min through an 8-stage precision carding process.

Intelligent Spinning & Web Formation

Adopt multi-zone needle punching technology, combined with imported card clothing double cylinders. Precisely control punching depth and density to form a three-dimensional filtration structure.

Precision Needle Punching Molding

Stabilizes the fabric dimensions after processing, ensuring consistent fit, shrink resistance, and compatibility with bag cages.

Heat Setting

Singeing removes surface fuzz and loose fibers, preventing dust re-entrainment and improving cleaning efficiency. It creates a smooth surface ideal for pulse-jet cleaning systems.

Singeing Treatment

A PTFE or ePTFE microporous membrane is laminated onto the fabric surface to achieve ultra-fine filtration. It enables ≤5mg/m³ emission levels, reduces pressure drop, and significantly extends bag life.

Membrane Lamination

Chemical finishing forms a molecular film, repelling water/oil, retaining texture/breathability, wash & stain resistant.

water/oil repellency

Warehouse & Stock

Intelligent Visualized Warehouse & Stock Strength
Global Shipping

Ship Worldwide in as Fast as 48 Hours

Massive Stock Power

500,000 m² Always Available

Quality Control

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.

Raw Material Inspection

Laboratory data analysis

Preliminary testing of filter cloth

Semi-finished product inspection

Finished product inspection

Why Choose Us

Lower Energy Consumption

Our unique materials and advanced surface treatment technologies significantly reduce system pressure drop and minimize cleaning frequency, saving you tens of thousands of dollars in electricity costs annually.

Adaptable to Harsh Conditions

Whether it’s high temperature, high humidity, corrosive, or abrasive environments, we provide professionally customized filter bags for consistently excellent performance.

System Optimization, Comprehensive Enhancement

More than just filter bags, our solutions optimize your entire dust collection system, boosting efficiency and ensuring continuous production.

Built to Last

Increase service life by over 30%. Our unique finishing treatments make bags more resistant to abrasion and corrosion, reducing your replacement costs.

Custom Solutions

Submit your operating conditions, and our engineers will provide a free material selection plan and optimization advice within 24 hours.

One-on-One Technical Support

Our expert team provides comprehensive guidance from selection and installation to maintenance, ensuring stable operation of your dust control system.

Please share your contact information to download the documents.

Our engineers may follow up to ensure the information fits your application.

Aokai-Introduction

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Product Catalog

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About Aokai Envirotec

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Dust Collection for Asphalt Mixing Plants

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Contact us to discuss your project and long-term filtration solutions.




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