Industrial Filter Bag Solutions for Dust Collection Systems

  • Custom Manufacturing
  • Flexible Supply Chain
  • Full-Process Quality Control

In applications such as coal dust, flour, aluminum powder, chemical powders, and organic dust, static electricity is generated during filtration and pulse cleaning.If the charge cannot dissipate, spark discharge may occur, leading to fire or explosion risks.

Anti-static filter bags

Prevent sparks. Prevent explosions. Protect your baghouse operation.

Conductive fibers or stainless steel conductive materials are mixed into the chemical fibers used to produce needle felt to produce antistatic needle felt with excellent antistatic properties. The results of comparing antistatic dust filter bags with ordinary dust filter bags in terms of physical properties, charge and dust removal efficiency have confirmed the superiority of antistatic dust filter bags.

  • Conductive fibers are not affected by the environment.
  • When the fabric is charged, it discharges through its own weak corona and leaks to the ground.
  • When weaving, long filaments are used for warp yarns and short filaments are used for weft yarns.
涤纶混导电

We offer multiple anti-static constructions

Stainless steel fiber blend

(high temperature resistance and stable conductivity)

Stainless steel fiber blend

Grid conductive structur

(more uniform conductivity and higher safety level)

Grid conductive structur

Conductive stripe yarn

(economical and widely used)

Conductive stripe yarn

Anti-static filter bags based on different base media

ITMLPolyester (PET) with Conductive FibersPolyimide (P84)PTFE Aramid (Nomex)
ConductivityHighModerateHighModerate
TemperatureUp to 150°C(302°F)Up to 260°C(500°F)Up to 250°C(500°F)Up to 200°C(392°F)
Chemical ResistanceGoodVery GoodExcellentHigh
Abrasion ResistanceHighHighHighHigh
DurabilityHighHighHighHigh

Technical specifications of anti-static polyester filter bags

ItemSpec
Weight(gsm)400 -600 g/m² ±10%
Diameter(mm)>100
Finish treatmentSingeing, Calendering, Heat setting
Air permeability(L/m².s)200-300
Tensile strength(N/5cm)warp≥1100
weft≥1500
Tensile elongation(%)warp≤35
weft≤60
Heat shrinkage(%)130℃warp≤1.5
weft≤1.0
Temperature(°C)Continue130
Instant150
Anti-acidMiddle
Anti-alkaliMiddle
Anti-abrasionExcellent
hydrolysis stabilityMiddle
Surface resistance(Ω)10^10

Typical Applications

Coal-fired boilers

Coal-fired boilers

Asphalt Plant Dust Collection

Flour & grain processing

Filter Bags for Cement Plant

Chemical powders

Non-Ferrous Metals Plant Dust Collection

Aluminum & metal powder

Adding 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.

ePTFE Membrane Lamination

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

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

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

Fast & Transparent Quotation

  • Material specification

  • Unit price & MOQ

  • Lead time and delivery terms

Step 5

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.

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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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