We Craft Every Filter Bag with Care

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.

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

Glassfiber Filter Bags for High-Temperature Filtration

Engineered for Extreme Heat & Corrosive Environments

Glassfiber Filter Bags can be constructed using either woven or nonwoven fiberglass fabrics. In addition, fiberglassfilter media can be treated with various options so that they become best suited for various operating conditions,applications, and industries.

  • High Temperature Resistance
    Can withstand temperatures up to 260 ° C or higher,depending on the specific treatment and construction.
  • Chemical Resistance
    Excellent resistance to acids, alkalis and other corrosivesubstances.
  • Mechanical Strength
    Durable and wear-resistant, extending the service life ofthe filter bag.
  • Low elongation, dimensional stability
  • High Filtration Efficiency
    Capable of capturing fine particles and providing effi-cient filtration performance.
Dust Filter Bags

Product Specifications

Non-woven Fiberglass Filter Cloth

Woven Fiberglass Filter Cloth

ItemNon-woven Fiberglass Filter BagsWoven Fiberglass Filter Bags
Manufacturing processGlass fibers are combined physically or chemically using non-woven processes such as needle punching.Glass fiber yarn is woven into cloth. The yarn is arranged in a certain warp and weft to form a regular fabric structure.
High temperature resistanceHigher, slightly lower than woven type.Extremely high, can withstand high temperature environment, suitable for use under high temperature conditions.
Mechanical strengthLow, but better softness and adaptability.Strong, wear-resistant, suitable for harsh working environment.
Filtration efficiencyHigh, good air permeability, suitable for capturing fine particles.High, but relatively poor air permeability.
Applicable environmentMedium temperature, low corrosion and fine dust particles environment.High temperature, high corrosion and high wear environment.

Technical Specifications of Glassfiber Filter Bags

ITEMAKG900 (M)AKG901(M)
Working temperature (°C)180240
Peak temperature (°C)220260
Emission (mg)//
Weight (g/m2)≥900≥900
Thickness (mm)3.2±10% (3.0±10%)3.2±10%(3.0±10%)
Air permenability (m3/m2/min)15-28 (2-5)15-28 (2-5)
Tensile strength / warp(N/5cm)≥1500≥1500
Tensile strength / weft(N/5cm)≥1500≥1500
Tensile elongation/ warp(%)≤10≤10
Tensile elongation/weft(%)≤10≤10
24-hour heat shrink / warp(%)≤1.5≤1.5
24-hour heat shrink / weft(%)≤1.0≤1.0
Post-treatmentPTFE Dipping / PTFE Membrane

Fiberglass Needle Felt Filter Bags

Technical Specifications of Fiberglass Woven Filter Bags

ITEMAKG075WM
Working temperature (°C)260
Peak temperature (°C)280
Emission (mg)/
Weight (g/m2)≥750
Thickness (mm)1.0±0.2
Air permenability (m3/m2/min@200Pa)2-4
Tensile strength / warp(N/5cm)≥2500
Tensile strength / weft(N/5cm)≥2500
Tensile elongation / warp(%)≤15
Tensile elongation / weft(%)≤10
24-hour heat shrink / warp(%)≤1.0
24-hour heat shrink / weft(%)≤1.0
Post-treatmentPTFE Dipping / PTFE Membrane

Fiberglass Woven Fabric Filter Bags

Surface Treatments Available

PTFE Coating

PTFE coating allows dust to remain on the surface of the film and not enter the fibers of the filter material, thereby extending the service life of the filter material.

PTFE Impregnation

The filter material is impregnated in a PTFE solution and then dried to improve the filter material’s resistance to temperature and chemical corrosion.

Graphite coating

Improve the high temperature resistance and oxidation resistance of the filter bag, while enhancing acid and alkali resistance.

Calendering

Calendering makes the filter material surface smooth and uniform in thickness, making it denser, smoother, and easier to clean. It can also reduce the pore size, making it difficult for dust to enter the deep layer of the filter material, thereby increasing the service life of the filter material.

Typical Applications

Asphalt Plant Dust Collection

Asphalt Mixing Plants

Non-Ferrous Metals Plant Dust Collection

Steel & Metallurgy

Filter Bags for Waste Incineration

Waste Incinerators

waste incineration industry 2

Power Generation

Custom Filter Cloth Solutions for Every Industry

Tell us your working conditions, and we will recommend the best solution within 24 hours.

✔ Free Sample | ✔ Fast Delivery 7–15 Days | ✔ Factory Direct Price

Aokai engineers are analyzing the operating conditions.

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 – Built Exactly for Your Process

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 – Built Exactly for Your Process

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

PPS+PTFE Filter Bags

PTFE Filter Bags

节净达

Aramid Filter Bags

涤纶混导电

Polyester Filter Bags

Custom Needle Felt Filter Media

Your dust, your conditions – your perfect felt.

Custom Needle Felt Filter Media

Fibers & scrim: Glass, P84, Aramid, PTFE, Meta-aramid – blended exactly as needed
Weight: 400–900 g/m², precisely controlled
Finishes: PTFE membrane, water/oil repellent, anti-static, flame retardant, hydrolysis-resistant – all available

PTFE fabric

PTFE fabric

Nomex Needel Felt

Aramid Fabric

Anti-static Needle Felt

Polyester Filter Cloth

3I4A0087 副本

Filter Bag Cages

3I4A0071 副本

Envelope Cage

cage

Multi-piece round cage

bag cage

Venturi-integrated round cage

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 4

Sampling & Confirmation

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

Step 5

Fast & Transparent Quotation

  • Material specification

  • Unit price & MOQ

  • Lead time and delivery terms

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

As a leading manufacturer of industrial filtration media in China, we have 20+ years of industry experience, a 27,000㎡ modern production facility, and 8 advanced production lines, with an annual output of over 2 million filter bags. Certified with ISO9001, ISO14001, and ISO45001, our products are exported to 40+ countries and regions.

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

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)

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

Please share your contact information to download the documents.

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

dust collector filter bags

Product Catalog

We custom design and manufacture a wide range of baghouse filter media and bags of various…
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Company Introduction

As a leading filter media and filter bag manufacturer, Aokai Environtec specializes in making various types,…

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




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