Products Description
Our polypropylene felt filter bags are precision engineered for industrial dust collection and liquid filtration systems. They are made from 18-micron thermally bonded fibers that form a non-woven matrix with a porosity of 0.8 mm.
Core performance benefits:
- Excellent particle retention (down to 1 micron).
- High airflow efficiency.
- Resistance to acids, alkalis and organic solvents.
- Ideal for demanding industries such as cement production, water treatment, pharmaceutical and food processing.
Product Details
Advanced Layered Filter Media
Enhanced material composition with 20% higher density ensures 25% higher particle adsorption capacity. 5% more microfiber for ultra-fine filtration, effectively capturing sub-micron contaminants.
Industrial Grade 304 Stainless Steel Ring
Corrosion-resistant stainless steel reinforcement withstands extreme temperatures (up to 800°F/427°C) without warping. Ideal for high-pressure and high-viscosity applications. FDA-compliant durability.
Eco-Certified Plastic Inner/Outer Flap
Molded from food-grade polypropylene in a seamless, corrosion-resistant design. Precision-engineered inner/outer ring ensures a leak-proof seal and chemical resistance (pH 1-14 compatible).
Military Grade 5-Wire Hemming Technology
5-wire edge technology eliminates the risk of particulate bypass by reinforcing the edge. Initial efficiency of 99.8% is maintained after more than 500 pressure cycles.
Dual Sealing Options
Stitched Seal: Industrial polyester thread is stitched for abrasive media and extended cycling.
Ultrasonic Welding: Particle-free thermal bonding for critical pharmaceutical/chemical processes.
Technical parameters
| Model | Diameter | Length | Volume | Accuracy | Flow rate | Filtration area |
| 1# | 180mm | 430mm | 8L | 1-300µm | 20m³/h | 0.25㎡ |
| 2# | 180mm | 810mm | 17L | 1-300µm | 40m³/h | 0.5㎡ |
| 3# | 105mm | 230mm | 1.3L | 1-300µm | 6m³/h | 0.09㎡ |
| 4# | 105mm | 380mm | 2.5L | 1-300µm | 12m³/h | 0.16㎡ |
| 5# | 150mm | 550mm | 7L | 1-300µm | 18m³/h | 0.3㎡ |
applications
Chemical & Petrochemical Processing
Catalyst recovery in refineries.
Acid/alkaline slurry filtration (pH 1-14 compatibility).
Solvent purification for polymer production.
Food & Beverage Manufacturing
Edible oil degumming and winterization.
Brewery diatomaceous earth removal.
Sugar syrup clarification (FDA compliant).
Pharmaceutical & Biotech
API purification (lyophilization processes).
Sterile venting for bioreactors.
Nanofiber pre-filtration (0.5-100 μm particle retention).
Water & Environmental Tech
RO pretreatment for seawater desalination.
Microplastic capture in wastewater recycling.
Stormwater sediment control.
Our advantages
Why Choose Our Filter Bags?
15+ Years Of Expertise
Trusted by leading domestic and international companies to perform critical filtering tasks.
Rigorous Quality Control
Each batch undergoes ISO 9001-certified testing for burst strength and micron accuracy.
Fast Lead Times
Standard orders ship in 3–5 business days; custom designs in 2 weeks.
Cost-Effective
Reduce waste with reusable designs (up to 5 cycles with proper cleaning).
FAQ
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