filter bag cage manufacturing
filter bag cage manufacturing
PTFE Dust Filter Bags
PTFE Dust Filter Bags
Engineered for demanding industrial environments, ensuring efficient dust removal and lasting durability!
Commonly known as Teflon® filter bags, As a PTFE fabric, it has the following characteristics:
- Continuous temperature resistance up to 240°C, peak up to 260°C
- Excellent chemical resistance to acids, alkalis, solvents
- Low friction, smooth surface for easy dust release
- Stable filtration performance in harsh and humid conditions
- Custom sizes, seam reinforcements, and surface treatments available
PTFE Filter Bags
Specifications
| Parameter | Description |
|---|---|
| Material | 100% PTFE Fiber or PTFE-Coated Composite |
| Operating Temperature | Continuous: 240°C, Instant: 260°C |
| Filtration Precision | 1-10 μm, Captures PM2.5 Particles |
| Chemical Resistance | Excellent, Resistant to Acids, Alkalis, and Chemicals |
| Air Permeability | 10-20 L/m²·s |
| Weight | 500-800 g/m² |
| Thickness | 1.5-2.5 mm (Needle Felt) |
| Types | Collar Type, Mushroom Shape, Extended Life |
| Surface Treatment | PTFE Coating, Singeing, Heat Setting |
| Customization | Custom Sizes, Thickness, and Coatings Available |
Non-laminated PTFE Filter Bag
PTFE Pulse Jet Dust Filter Bag
PTFE Membrane + PTFE Dust Filter Bag
PTFE Blended Dust Filter Bag
PTFE Filter Bag Construction & Treatment
PTFE filter media can be constructed and treated with various options so that they become best suited for various operating conditions, applications, and industries.
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.
This aids in filtration, adds resistance to water and oils, and improves cake release.
The filter media is coated in a bath or spray of liquid PTFE resin. This is done to protect filter bags. The treatment improves the flex life, heat and chemical resistance, and dust release from the filter bags. This increases the service life and filtration efficiency. PTFE finish is commonly used in applications with corrosive chemical compounds, sticky dust, or high moisture contents.
Helps to ground the filter bag to eliminate sparks that might cause combustion explosions.
Singeing is a finishing process where the surface of the filter media is exposed to a flame or hot gas to burn off the fine and straggly fibers in order to provide a uniform and smooth surface area, which improves dusk cake release, enhanced filtration efficiency, and better air permeability.
The singeing process typically involves passing the fabric over an open flame or through a heated chamber. The heat singes off the protruding fibers without damaging the main structure of the fabric. The process parameters, such as speed and temperature, are carefully controlled to achieve the desired level of smoothness and finish.
Glazing, also known as calendering, is the high-pressure pressing of the fabric by rollers to flatten or smooth the surface. Glazing pushes the surface fibers down onto the body of the filter media to increase and uniform surface life, improve stability, reduce shrinkage, and improve dust cake release.
Reinforced Low Adhesion Treatment:
Through a post-treatment process, we apply a specialized chemical solution (developed in-house) to the filter media, which imparts enhanced water and oil repellency.
No Treatment
Regular Water & Oil Repellence
Reinforced Low Adhesion
Enhanced Dust Release Property
Better Water & Oil Repellency
Effective under High Temperature
+20%
Dust Release
+30%
Water & Oil Repellence
+20%
Bag Lifespan
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.
Cement & Building Materials
Used in kiln and mill processes where temperatures are high.
Waste Incineration
Withstands high temperatures and corrosive gases produced during incineration.
Mining and Metals
Effective in dust collection systems where high temperatures and corrosive gases are present.
Chemical Processing
Used in environments where aggressive chemicals are handled.
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 filter bags are manufactured with precision sewing technology to ensure airtight seams, high strength, and dimensional stability. Available in multiple materials such as Polyester, Aramid, PPS, Fiberglass, PTFE for different industrial needs.
We supply high-performance dust filter bags for cement, power, steel, chemical, and asphalt industries. Options include Aramid filter bags, PTFE filter bags, fiberglass filter bags, PPS filter bags, delivering excellent heat resistance, chemical resistance, and stable low emissions—extending service life and reducing maintenance costs.
Nomex Filter Cloth
Amaid Filter Cloth
Glassfiber Filter Cloth
Galvanized steel
stainless steel
carbon steel
Custom dimensions available to fit all baghouse systems
Custom dimensions available to fit all baghouse systems
Custom dimensions available to fit all baghouse systems
With our needle felt filter media, filter bags, cages, and accessories, we deliver complete dust filtration solutions from design to manufacturing and after-sales support.
Need Help Selecting the Right Filter Bag?
Contact us today for free consultation and quotation!
Our Manufacturing Strength
As a leading manufacturer of industrial filter cloth, filter bags,filter cage 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. our products are exported to 50+ countries and regions.
1
Years of Serving Customers
1
Customers Worldwide
1
㎡ – Modern Production Base
1
Million Bags Annual Capacity
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)
Flexible Supply Chain
1-Raw Material
Supplier Diversification, Material Sustitutability
2-Inventory
Dynamic Forecasting, Key Material Stockpiling
3-Collaboration
Collaborative Demand Forecasting, Custom Solutions
4-Manufacturing
Quick Line Changeover & Production Switching Multi-Skilled Workforce.
5-Shipping & Delivery
Alternative Transportation Solutions, Quick Turnaround Order
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