Polyterafluoroethylene (PTFE) Filter Bags are high-performance filtration solutions engineered for extreme industrial environments. Fabricated from 100% pure PTFE fibers or PTFE membrane laminated substrates, these bags deliver unparalleled chemical resistance, thermal stability, and filtration efficiency.
MingKai's PTFE Filter Bags are engineered for extreme industrial environments where high temperatures, corrosive chemicals, and challenging particulate matter are present. Constructed from premium expanded PTFE membrane laminated to a high-strength substrate, these filter bags offer unmatched chemical resistance, exceptional filtration efficiency, and extended service life. The smooth PTFE surface prevents dust adhesion, ensuring low-pressure drop and efficient pulse-jet cleaning. Ideal for applications in chemical processing, waste incineration, metal smelting, and pharmaceutical manufacturing.
Product Advantages
Unmatched chemical resistance to acids, alkalis, and solvents
High-temperature tolerance up to 260°C (500°F)
Exceptional filtration efficiency for submicron particles
Low-pressure drop design for energy-efficient operation
Easy dust release and efficient pulse-jet cleaning
Technical Features
PTFE membrane laminated to various substrate materials
Customizable dimensions and configurations
Available with anti-static treatment for explosive environments
High-strength construction for long-term durability
Compatible with various pulse-jet cleaning systems
Production Capacity
Daily Output: 1,500-2,500 units of standard size filter bags
Specialized fabrics and custom sizes available upon request
Key Applications
Ideal for dust collection systems in environments requiring extreme chemical resistance and high-temperature performance:
Inspect the filter bag for any signs of damage during shipping or handling. Check for tears, holes, or loose seams. Verify that the dimensions and specifications match your system requirements. Ensure that the filter cage is clean and free of any sharp edges that could damage the bag. Confirm that the bag is suitable for the operating temperature and chemical environment. Check the PTFE membrane for any signs of damage or delamination.
2
Proper Installation
Carefully insert the filter bag into the cage, ensuring it is centered and fully extended. Attach the bag to the cage using the appropriate fasteners, such as snap bands or drawstrings. Make sure the bag is securely fastened to prevent any gaps or leaks. Avoid over-tightening, which could damage the bag or cage. Handle the PTFE membrane with care to avoid scratching or puncturing. Ensure that the installation is performed in a clean environment to prevent contamination.
3
System Startup
Gradually increase the airflow to allow the system to stabilize. Monitor the pressure differential across the filter to ensure it remains within the recommended range. Check for any signs of leakage or abnormal operation. Verify that the cleaning system is functioning properly. If necessary, adjust the cleaning cycle to optimize performance. Allow the system to run for a short period to condition the filter media. Monitor the temperature to ensure it does not exceed the rated maximum continuous temperature of 260°C (500°F).
4
Regular Maintenance
Conduct visual inspections of the filter bags during routine maintenance checks. Look for signs of wear, damage, or clogging. Check for any signs of chemical degradation, such as discoloration or embrittlement. Monitor the pressure differential across the filter to detect any potential issues early. Clean or replace the bags as needed to maintain optimal performance. Keep a record of maintenance activities and filter replacements. Avoid using harsh cleaning agents or abrasive materials that could damage the PTFE membrane.
Operation Checklist
Verify filter bag dimensions and specifications
Inspect filter cage for damage or sharp edges
Ensure proper attachment of filter bag to cage
Monitor pressure differential during operation
Schedule regular maintenance and filter replacements
Ensure operating temperature does not exceed 260°C (500°F)
Safety Regulations
Handling Precautions
Wear appropriate personal protective equipment (PPE) when handling filter bags, including gloves and safety glasses. Avoid contact with sharp objects or rough surfaces that could damage the bags. Store filter bags in a clean, dry environment away from direct sunlight and sources of heat or moisture. Do not expose the bags to temperatures exceeding their rated maximum continuous temperature of 260°C (500°F). Handle the PTFE membrane with care to avoid scratching or puncturing.
Installation Safety
Ensure the filter system is depressurized and powered off before installing or removing filter bags. Use proper lifting techniques to avoid injury when handling heavy bags or cages. Follow all manufacturer instructions and guidelines for installation and maintenance. Ensure proper alignment of the bag with the cage to prevent stress concentrations. Do not force the bag into place, as this may cause damage. Avoid using tools that could puncture or damage the PTFE membrane.
Environmental Limitations
Do not exceed the maximum continuous temperature rating of 260°C (500°F). Avoid exposure to molten metals or other high-energy sources that could damage the bags. Ensure proper ventilation in the installation area to prevent the accumulation of dust or fumes. In applications with high humidity or moisture, ensure proper drainage and condensation control. PTFE is generally inert, but in extreme conditions (above 350°C), it may release toxic fumes. Ensure proper ventilation and safety protocols in such environments.
Safety Certifications
ISO 9001:2015
ISO 14001:2015
CE Certification
RoHS Compliant
Technical Parameters
Core Specifications
Product Name
PTFE Filter Bag
Model
MK-PTFE Series
Material
Expanded PTFE Membrane Laminated to Substrate
Gram Weight
600-800 g/m² (standard options)
Thickness
0.5-1.2 mm (membrane thickness: 0.02-0.1 mm)
Air Permeability
5-15 m³/m²/min (at 200 Pa)
Tensile Strength (MD)
≥1000 N/5cm
Tensile Strength (CD)
≥800 N/5cm
Elongation at Break (MD)
≤30%
Elongation at Break (CD)
≤40%
Max Continuous Temperature
260°C (500°F)
Max Instantaneous Temperature
280°C (536°F) (up to 10 minutes)
Filtration Efficiency
≥99.99% for particles ≥0.1μm
Pressure Drop
600-900 Pa (clean filter)
Chemical Resistance
Exceptional resistance to most chemicals
Hydrophobicity
Excellent (water contact angle >110°)
Surface Smoothness
Ultra-smooth PTFE membrane for easy dust release
Performance Advantages
Chemical Resistance
Unmatched resistance to acids, alkalis, and solvents
Filtration Efficiency
Ultra-high efficiency for submicron particles
Temperature Resistance
Operates reliably at temperatures up to 260°C (500°F)
Pressure Drop
Low-pressure drop design for energy savings
Service Life
24-36 months (depending on operating conditions)
Cleanability
Excellent dust release properties for efficient cleaning
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Confused about dust removal equipment? Need to extend filter bag life? Mingkai's tech tips cover selection, maintenance, and policies to help you manage equipment, ensure compliance, and cut costs.
Environmental Equipment O&M Insights
Confused about dust removal equipment? Need to extend filter bag life? Mingkai's tech tips cover selection, maintenance, and policies to help you manage equipment, ensure compliance, and cut costs.
Filter Bag Maintenance: Extend Life, Cut Costs
Regular maintenance of filter bags extends their lifespan and cuts costs by preventing clogs, saving energy, and reducing replacement needs.
Filter Bag Maintenance: Extend Life, Cut Costs
Regular maintenance of filter bags extends their lifespan and cuts costs by preventing clogs, saving energy, and reducing replacement needs.
Efficient Dust Removal: Save Cost & Time
Mingkai's combination of dust filter bags and equipment efficiently intercepts industrial dust, reducing equipment wear - and - tear. Simplify the dust - cleaning process, free up production line space, and help enterprises cut operation and maintenance costs while improving production efficiency. Button: Free Solution Consultation
Efficient Dust Removal: Save Cost & Time
Mingkai's combination of dust filter bags and equipment efficiently intercepts industrial dust, reducing equipment wear - and - tear. Simplify the dust - cleaning process, free up production line space, and help enterprises cut operation and maintenance costs while improving production efficiency. Button: Free Solution Consultation
Custom env solutions for precise needs.
Mingkai customizes dust-removal systems for high-temp coking plants, humid textile workshops, etc., adapting filter bag materials and equipment structures to unique needs.
Custom env solutions for precise needs.
Mingkai customizes dust-removal systems for high-temp coking plants, humid textile workshops, etc., adapting filter bag materials and equipment structures to unique needs.
See How Pollution Problems
Want to know how Mingkai equipment performs in actual working conditions? Browse cases in industries such as chemical and electric power, and learn how enterprises use our dust removal solutions to optimize production lines and solve the problem of coordinating environmental protection and production. Button: View Customer Cases
See How Pollution Problems
Want to know how Mingkai equipment performs in actual working conditions? Browse cases in industries such as chemical and electric power, and learn how enterprises use our dust removal solutions to optimize production lines and solve the problem of coordinating environmental protection and production. Button: View Customer Cases
High dust load & continuous production (e.g., sintering workshop in steel mills)
Choose high - dust - holding filter bags + strong - load cage frames → Reduce bag - changing frequency (cut labor and shutdown losses), stably support production line operation.
Space - constrained & fine dust (e.g., electronics factory grinding workshop)
Choose pleated cartridges + custom brackets → Achieve high - efficiency filtration (precision ≤1μm) in limited space, suitable for low - air - volume, high - precision needs.
Superior to heart
More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price.
FAQs
Can I test Mingkai's filter bags before purchasing?
Yes. We offer free sample testing for filter bags. You can evaluate filtration efficiency, material durability, and compatibility with your dust - laden airflow in your actual working conditions.
Can Mingkai customize the dimensions of dust bag cages?
Absolutely. Our bag cages support custom - made lengths, diameters, and ring spacings. Just provide your filter housing specs or application requirements, and we’ll tailor the structure for a perfect fit.
Can dust filter cartridges replace filter bags in my existing system?
It depends on your equipment design. If space and airflow allow, we can conduct a free on - site assessment. For systems with limited vertical space, cartridges (with compact structure) are often a viable upgrade option.
What’s the maximum temperature Mingkai's filter bags can withstand?
It varies by material. For example: PTFE bags handle up to 260℃ continuously; Aramid (Nomex®) resists 220℃; For extreme 280℃+ scenarios, we recommend FMS composite materials.
How long does the anti - corrosion coating on dust bag cages last?
Our standard galvanized cages last 3–5 years in general industrial environments. For harsh corrosive conditions (e.g., chemical plants), we offer epoxy - coated or stainless - steel options, extending service life to 8–10 years.
ONE-STOP SERVICE
We are dedicated to a one-stop solution for environmental protection dust collection. Our services cover dust collection system design, production of dust filter bags and cage frames, installation & commissioning, as well as after-sales maintenance, etc.
