filter bag cage manufacturing
filter bag cage manufacturing
Stop Frequent Filter Replacement at 260°C
PTFE Filter Cloth for Extreme Temperature & Corrosive Dust Collection Systems
Stable up to 260°C. Excellent chemical resistance. Extended service life.
Engineered to reduce downtime and lower operating cost.
PTFE Filter Cloth
PTFE Filter Cloth for Extreme Temperature & Corrosive Applications
Engineered for high-temperature dust collection and harsh chemical environments.
- Excellent High Temperature Resistance.Continuous: 240
Peak: 260°C - Outstanding Chemical Stability.Resistant to strong acids, alkalis and solvents.
- Low Friction & Easy Dust Release.Reduces pressure drop and improves cleaning efficiency.
- Long Service Life.Lower replacement frequency = lower operating cost.
Send us your working condition — our engineers will recommend the right PTFE solution.
Learn About PTFE Filter Bags
PTFE fabric
PTFE Scrim Supported Needle Felt
Specifications
| Fabric | 100% PTFE fiber |
| Heat resistance | Continuous 240°C |
| Instantaneous 260°C | |
| Thickness | 1.0-1.8mm |
| Air permeability | 80-120 L/dm²/min |
| Area weight (g/m²) | 700~800 |
| Breaking elongation (%) | (Warp): <40 |
| (Weft): <60 | |
| Breaking strength | (Warp): >1350 |
| (Weft): >1450 | |
| Tensile strength(N/5 cm) | (Warp): ≥1000 |
| (Weft): ≥1000 |
| Acid Resistance | Excellent |
| Alkali Resistance | Excellent |
| Hydrolytic Resistance | Excellent |
| Oxidation Resistance | Excellent |
| Abrasion resistance | Moderate |
PTFE FILTER CLOTH FINISHING & TREATMENT
PTFE Membrane Lamination
Surface Filtration for Higher Efficiency
- Improves filtration efficiency
- Reduces dust penetration
- Lowers pressure drop
- Enhances cleanability
Water & Oil Repellent Treatment
Improve Surface Resistance
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Reduces moisture adhesion
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Prevents clogging
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Improves dust cake release
Suitable for high humidity environments.
Heat Setting Treatment
Improve Dimensional Stability
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Reduces thermal shrinkage
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Improves fabric stability at 240–260°C
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Ensures consistent performance under long-term heat
Anti-Static Treatment
Safe Operation in Explosive Dust Environments
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Reduces static charge buildup
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Prevents spark risk
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Suitable for coal dust and combustible dust systems
Applications of PTFE Filter Cloth
PTFE is ideal for continuous operating temperatures up to 260°Cand environments with strong acid / alkali corrosion.
Related Products
We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.
Quick FAQ
1.Do you support OEM or custom specifications?
Yes. We offer custom width, weight, thickness, and finishing treatments based on your application.
3.Do you provide samples?
Yes. Sample rolls are available for performance testing before bulk orders.
5.How do you ensure consistent quality?
We follow strict raw material inspection, weight control, air permeability testing, and final roll inspection before shipment.
Each batch is traceable.
2.What is your typical lead time?
Standard specifications are usually ready within 7–15 days.
Custom orders depend on quantity and finishing requirements.
4.Can PTFE help reduce plant downtime?
Yes. Due to its superior chemical and thermal resistance, PTFE significantly reduces unexpected failure and replacement frequency in extreme environments.
6.How long is the expected service life?
Service life depends on operating conditions. In extreme environments, PTFE significantly outperforms conventional materials.
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)
Warehouse & Stock
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
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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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