Product Description: Industrial Polyester PTFE Membrane Antistatic Dust Cleaning Element Cartridge Spunbond Air Filter
This product is a high-performance air filter element specifically designed for industrial dust collection. It combines the structural strength of polyester spunbond material with the exceptional filtration properties of polytetrafluoroethylene (PTFE) membrane, while also featuring antistatic functionality. It is suitable for handling flammable and explosive dust or scenarios requiring high-precision filtration.
Core Materials and Structure
Polyester Spunbond Substrate
Made from high-strength polyester fibers through a spunbond process, forming a three-dimensional network structure that ensures mechanical stability and tear resistance of the filtration medium.
The substrate surface is smooth with uniformly distributed pores, providing stable support for the PTFE membrane.
PTFE Membrane Layer
The PTFE membrane is laminated onto the polyester substrate surface through a coating process, forming a microporous filtration layer.
Pore Size Control: The membrane pore size can be precisely controlled within the range of 0.2-15μm, enabling efficient interception of submicron particles (such as PM2.5, welding fumes, metal powders, etc.).
Surface Filtration Characteristics: The smooth surface of the PTFE membrane prevents dust adhesion, creating a "surface filtration" effect that reduces pressure differential and extends filter cartridge life.
Chemical Inertness: The PTFE membrane is resistant to corrosion from acids, alkalis, and organic solvents, making it suitable for corrosive environments such as chemical, pharmaceutical, and electroplating industries.
Antistatic Treatment
Through carbon impregnation or metal coating technology, the surface resistivity of the filter cartridge is reduced to 10⁶-10⁹Ω, effectively conducting away static electricity and avoiding the risk of dust explosions.
Complies with EN 60335-2-69 standard (M-class explosion-proof certification), suitable for handling flammable dust such as aluminum powder, coal powder, and plastic powder.
Performance Advantages
High-Efficiency Filtration
Achieves a filtration efficiency of 99.99% for particles above 0.3μm (H14 grade), meeting high-precision requirements in cleanrooms and electronic manufacturing.
Low initial pressure differential (typically <200Pa), resulting in lower system energy consumption.
Long Life and Low Maintenance
The hydrophobic nature of the PTFE membrane prevents water absorption, reducing the risk of filter cartridge blockage.
During pulse cleaning, dust easily detaches, improving cleaning efficiency by over 30% and extending filter cartridge life to 2-3 times that of traditional filter materials.
Wide Temperature Adaptability
Operates stably within the temperature range of -200°C to +260°C, suitable for high-temperature flue gas filtration (such as in steel and cement industries) or low-temperature freeze-drying scenarios.
Environmental Compliance
The filter cartridge emission concentration is ≤1mg/m³, helping enterprises meet environmental requirements such as GB 16297-1996 "Integrated Emission Standard of Air Pollutants."
Application Scenarios
Welding Fume Control: Captures metal oxide particles generated during welding processes to protect worker health.
Pharmaceutical and Food Processing: Filters air in sterile workshops to prevent cross-contamination.
Chemical and Metallurgical Industries: Handles corrosive dust (such as sulfuric acid mist and alumina powder) to extend equipment life.
Powder Recovery Systems: Recovers high-value materials such as precious metal powders and plastic granules, reducing production costs.
Design Features
Pleated Structure
Features a deep-pleated design that increases filtration area by 3-5 times compared to traditional filter bags, enhancing air handling capacity within limited space.
Uniform pleat spacing prevents excessive local pressure differentials caused by dust accumulation.
Optimized Sealing
The top and bottom end caps utilize polyurethane sealant or rubber O-rings to ensure no leakage between the filter cartridge and filter cylinder.
Anti-pulse vibration design prevents filter cartridge loosening during cleaning.
Customization Options
Filter cartridge dimensions (diameter, height), interface types (flange, thread), and materials (stainless steel, galvanized steel) can be adjusted according to customer requirements.
Supports customization of special functions such as fire-resistant coatings and antibacterial treatments.
Example Technical Parameters
| Parameter | Typical Value |
|---|---|
| Filtration Efficiency | 99.99% (0.3μm particles) |
| Initial Pressure Differential | ≤180Pa (at rated air volume) |
| Temperature Range | -200°C to +260°C |
| Surface Resistivity | 10⁶-10⁹Ω (antistatic type) |
| Filter Cartridge Life | 8000-12000 hours (depending on operating conditions) |
| Certification Standards | EN 60335-2-69, ISO 9001 |
Summary
This product achieves a balance of high-efficiency filtration, long life, low maintenance, and antistatic functionality through a composite design of polyester spunbond substrate and PTFE membrane. It is an ideal choice in the field of industrial dust control, widely applied in industries such as welding, pharmaceuticals, chemicals, and metallurgy. It helps enterprises improve air quality, reduce operational costs, and meet environmental regulatory requirements.