Industrial Filter Bag Solutions for Dust Collection Systems
Polyester Filter Bags
Polyester needle felt filter bags are made of needle punched many times and properly rolled. The short fibers are laid into a fiber web, and then the fiber web is reinforced into a cloth by needles with barbs, and the fiber web is repeatedly punctured to reinforce the fibers to form a needle-punched non-woven fabric. Non-woven fabrics have no distinction between warp and weft, the fibers are messy, and there is little difference in radial and weft properties.
Polyester filter bags are most common materials in the filter bag family. Polyester is a low-cost, widely available standard fiber used across manyindustries for industrial air filtration. It offers excellent tensile strengthand oxidation resistance with good mechanical stability.
Learn About Polyester Needle Felt
PET(Polyester) Needle Punched Non-Woven Material Has The Following Characteristics.
- High Filtration Efficiency: Polyester filter bags can efficiently capture fine dust, particles, and contaminants due to their dense fiber structure.
- Durability and Strength: Polyester fibers are strong and resistant to tearing and abrasion, which extends the lifespan of the filter bags.
- Chemical Resistance: Polyester fibers exhibit good resistance to many acids and alkalis, making them suitable for use in harsh chemical environments.
- Solvent Resistance: Polyester fibers are resistant to a wide range of solvents, enhancing their applicability in various industrial processes.
- Thermal Stability: Polyester fibers can operate effectively in temperatures up to approximately 130°C(266℉) .
- Moisture Resistance: Polyester fibers inherently repel water, making these filter bags effective in applications where moisture is present.
Technical specifications of polyester filter bags
| ITEM | PE155 | PEF155 | PEF953 |
|---|---|---|---|
| Working temperature (°C) | 130 | 130 | 130 |
| Peak temperature (°C) | 150 | 150 | 150 |
| Emission (mg) | / | 10 | 5 |
| Weight (g/m2) | 550±5% | 550±5% | 530±5% |
| Thickness (mm) | 2.2±10% | 2.2±10% | 1.9±10% |
| Air permenability (m3/m2/min@200Pa) | 14±20% | 12±20% | 13±20% |
| Tensile strength/ warp（N/5cm） | ≥1000 | ≥1000 | ≥1000 |
| Tensile strength / weft（N/5cm） | ≥1400 | ≥1400 | ≥1400 |
| Tensile elongation / warp（%） | ≤35 | ≤35 | ≤35 |
| Tensile elongation / weft（%） | ≤50 | ≤50 | ≤50 |
| 24-hour heat shrink / warp（%） | ≤1.5 | ≤1.5 | ≤1.5 |
| 24-hour heat shrink / weft（%） | ≤1.0 | ≤1.0 | ≤1.0 |
Post-treatment: Anti-Stati / Water & Oil Repellent / PTFE Dipping / PTFE Membrane
Needle Felting Treatment
To further enhance performance, we provide a series of advanced post-treatment processes that improve fabric durability, filtration efficiency, and adaptability to various working conditions.
Blending Fiber Polyester Anti-static Filter Bag
Proven in Diverse Industries
In dry conditions without acidic gases, polyester filter bags deliver stable performance, helping you reduce energy consumption, extend equipment lifespan, and easily meet environmental requirements.
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
Aokai Environtec is a leading manufacturer of baghouse filter cloth, filter bags, and baghouse accessories. Founded in 2004 and headquartered in China, our products are used in a variety of applications and industries, including asphalt mixing plants, cement plants, mining operations, power generation plants, metallurgy industry, renewable energy industry, waste incineration plants, and other industrial facilities. Our mission is to make the world a cleaner and better place by protecting people, the planet, and production from the harmful effects of industrial processes.
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)
1,000,000 ㎡
Smart Warehousing
Our Manufacturing Process
From Fiber to Filter: Full Control of Quality
Raw Material Selection
Mixing and Pretreatment
Intelligent Spinning & Web Formation
Precision Needle Punching Molding
Heat Setting
Singeing Treatment
Membrane Lamination
water/oil repellency
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.
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About Aokai Envirotec
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Dust Collection for Asphalt Mixing Plants
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