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.
- Custom Material Selection
- OEM Manufacturing
- Global Supply
filter bag cage manufacturing
filter bag cage manufacturing
PTFE Dust Filter Bags
PTFE Dust Filter Bags are made from premium Polytetrafluoroethylene raw fibers used in industrial air filtration applicationswith severe chemical environments at high temperatures. These fiter bags are highly resistant to acids, alkalis, hydro-lysis, and oxidation. They have a high operating temperature range of 240°C, handling surges up to 260°C
- Ultimate Chemical Resistance: 100% pure PTFE fiber, resistant to almost all acids, alkalis, and organic solvents, suitable for pH 0-14 range.
- Ultra-High Temperature Resistance: Continuous operating temperature 240°C, instantaneous up to 260°C, ideal for high-temperature flue gas.
- Surface Filtration Technology: Optional PTFE membrane lamination, dust does not penetrate inside, easy cleaning, low pressure drop, extended bag life.
- High Filtration Efficiency: Captures 0.1μm fine dust, emission <10mg/Nm³, meets strict environmental standards.
- Low Friction & Easy Cleaning: Self-lubricating surface, more efficient pulse jet cleaning, energy-saving and consumption-reducing.
Learn About PTFE Filter Cloth
PPS+PTFE Filter Bags
New Energy Dedicated PTFE Filter Bags(PT180)
Without film coating PTFE filter bags
PTFE Filter Bag（PT175M）
PTFE filter bag(PT175)
New Energy Dedicated PTFE Filter Bags(PT180)
Without film coating PTFE filter bags
PTFE Filter Bag（PT175M）
Technical Specifications Table of PTFE Dust Filter Bags
| ITEM | PT175 | PT175M | PT180 | PT180M | PT380 |
|---|---|---|---|---|---|
| Working temperature (°C) | 240 | 240 | 240 | 240 | 240 |
| Peak temperature (°C) | 260 | 260 | 260 | 260 | 260 |
| Emission (mg) | / | / | / | / | 10 |
| Weight (g/㎡) | 750±5% | 750±5% | 800±5% | 800±5% | 800±5% |
| Thickness (mm) | 1.5±10% | 1.0±10% | 1.6±10% | 1.2±10% | 1.6±10% |
| Air permenability(m³/㎡/min@200Pa) | 12±20% | 2-5 | 10±20% | 2-5 | 8±20% |
| Tensile strength /warp（N/5cm） | ≥800 | ≥800 | ≥800 | ≥800 | ≥800 |
| Tensile strength /weft（N/5cm） | ≥800 | ≥800 | ≥800 | ≥800 | ≥800 |
| Tensile elongation/warp（%） | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 |
| Tensile elongation /weft（%） | ≤20 | ≤20 | ≤20 | ≤20 | ≤20 |
| 24-hour heat shrink / warp（%） | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 |
| 24-hour heat shrink /weft（%） | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
Post-treatment: Heat Setting / PTFE Dipping / PTFE Membrane
Industry & Application
PTFE filter bags can provide excellent filtering effects in various harsh filtering environments. The application of this material not only improves the filtering efficiency, but also brings more possibilities to industrial production and promotes the progress and development of the industry.
Custom PTFE Dust Filter Bags Solutions for Every Industry
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
Related Products
We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.
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.
1
Years of Serving Customers
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)
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.
Filter Felt
Filter Bags
Autefa imported lines with dual-cylinder eight-zone carding
Filter Media Treatment
Advanced Needle-punch Lines
Phase II Filter Media Production Line
Automatic sewing & inspection lines
Filter Bags
Answers to Common Queries about dust collector filter bag
Q: How can I tell if my filter bags need replacing?
A: Key indicators include a sustained high differential pressure (DP), visible dust emissions from the stack (leakage), or a noticeable drop in suction efficiency at the source.
Q: What is the typical lifespan of an industrial filter bag?
A: Generally, a high-quality filter bag lasts between 3 to 5years. However, this varies significantly based on maintenance, cleaning frequency, and the harshness of the filtration environment.
Q: How do I choose the right filter bag for my specific industry?
A: We recommend selecting bags based on three key factors: Operating Temperature (continuous and peak), Gas Chemistry (moisture, acidity, or alkalinity), and Dust Characteristics (abrasiveness, particle size, and static charge).
Q: Do you offer custom sizes for filter bags?
A: Yes, as a leading manufacturer in China, we specialize in customized filtration solutions. We can produce bags to any specific length, diameter, and top/bottom configuration to fit your existing baghouse.
Q:Can your filter bags guarantee meeting strict environmental emission standards?
A:Yes. We design our bags to help plants achieve emissions as low as <5mg/Nm³. By utilizing fine denier fibers and advanced needle-punching technology, our filter media provides superior capture efficiency for sub-micron PM2.5 and PM10 particles, ensuring your facility remains in full compliance with local and international environmental regulations.
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About Aokai Envirotec
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Dust Collection for Asphalt Mixing Plants
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