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Help CenterIndustrial Needle Felt Filter Bag, 50 Micron, 7"x32", 0.5 MPa, Stainless Steel Ring
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As a professional manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory offers high-quality Industrial Needle Felt Filter Bag, 50 Micron, 7"x32", 0.5 MPa, Stainless Steel Ring designed for reliable dust collection and liquid filtration. Our decades of experience in wire mesh and filtration products ensure that every filter bag meets rigorous performance standards. With an annual export value of US$5-10 million and a global market reach covering North America, Europe, Asia, and beyond, we are committed to providing durable, efficient filtration solutions that help your operations run smoothly.
This filter bag combines industrial-grade needle felt fabric with a corrosion-resistant stainless steel ring, offering excellent particulate capture at 50 micron rating. It can withstand operating pressures up to 0.5 MPa, making it suitable for a wide range of industrial applications including cement plants, chemical processing, food processing, and woodworking. Read on for detailed specifications and benefits.
Key Features & Technical Specifications
- Filtration Efficiency: 50 micron nominal rating effectively captures fine dust and particles, ensuring clean air discharge and regulatory compliance.
- Durable Construction: Needle felt fabric provides high tensile strength, abrasion resistance, and good flexibility for long service life.
- Stainless Steel Ring: The ring is made from 304 stainless steel (optional 316), offering excellent corrosion resistance and secure mounting in filter cages.
- High Pressure Capability: Rated for 0.5 MPa (72.5 psi) maximum operating pressure, suitable for pulse-jet cleaning systems.
- Standard Size: 7" diameter x 32" length (178 mm x 813 mm), compatible with many common filter housings.
- Wide Temperature Range: Needle felt material can typically handle continuous temperatures up to 150°C (302°F) – customizable for higher temperature requirements.
- Easy Installation: The stainless steel ring fits snugly into the filter cage, providing a tight seal without additional gaskets.
- Customizable Options: Available in different micron ratings, sizes, and ring materials (e.g., galvanized steel) upon request.
| Parameter | Value |
|---|---|
| Filtration Rating | 50 micron |
| Bag Size | 7" diameter x 32" length |
| Maximum Operating Pressure | 0.5 MPa (72.5 psi) |
| Ring Material | Stainless Steel (304 standard) |
| Fabric Weight | Approx. 500 g/m² (customizable) |
| Continuous Operating Temperature | Up to 150°C (higher temperature options available) |
| Surface Treatment | Singed, heat-set, or anti-static as optional |
| Application Examples | Cement, chemical, mining, food, pharmaceutical |
Benefits to Your Operation
- Improved Air Quality: Captures 50 micron particles, reducing emissions and protecting workers’ health.
- Reduced Downtime: Robust needle felt construction resists tearing and abrasion, minimizing bag replacement frequency.
- Energy Savings: Low pressure drop design allows efficient airflow, reducing fan energy consumption.
- Compatibility: Fits standard pulse-jet dust collectors and many liquid filter housings.
- Cost-Effective: Competitive pricing combined with long service life delivers excellent total cost of ownership.
- Customization: We can adjust micron rating, size, ring type, and fabric treatments to meet your specific process requirements.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With over 25 years of manufacturing experience, we have shipped millions of filter bags to clients across five continents. Our annual export value of US$5-10 million reflects our ability to serve large-scale industrial projects. We are located in Hengshui, Hebei, China, a major hub for wire mesh and filtration products, giving us access to premium raw materials and skilled labor. Our factory utilizes advanced needle punching and heat-setting equipment to ensure consistent quality. We also offer OEM/ODM services and can produce custom sizes, micron ratings, and special coatings (e.g., PTFE membrane, anti-static).
All our products undergo strict quality control: we test each bag for dimensional accuracy, pressure resistance, and filtration efficiency before packing. We ship from major ports like Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide. Our dedicated customer support team provides technical advice and after-sales service. Contact us today to request a quote or sample for your application.
Frequently Asked Questions
1. What is the typical lifespan of this filter bag?
Lifespan depends on operating conditions such as temperature, dust load, and cleaning frequency. Under normal conditions, needle felt bags can last 6 to 12 months. Proper maintenance and pulse-jet cleaning extend service life.
2. Can this bag be used for liquid filtration?
Yes, but it is primarily designed for dry dust collection. For liquid applications, ensure the fabric is compatible with the chemical properties of the liquid. We recommend using a polypropylene or polyester felt if chemical resistance is required.
3. Is the stainless steel ring removable?
The ring is sewn into the bag opening and is not removable. It provides a rigid seal and is designed to stay in place during use.
4. What is the maximum temperature this bag can withstand?
Standard needle felt material can handle continuous temperatures up to 150°C (302°F). For higher temperatures (up to 260°C), we offer Nomex or PTFE fabric options – please inquire.
5. Do you offer free samples?
Yes, we provide free samples for evaluation. However, the buyer is responsible for shipping costs. Contact our sales team to arrange a sample.
6. What is the minimum order quantity (MOQ)?
Our MOQ for standard sizes is 10 pieces. For custom sizes, MOQ depends on the complexity – typically 50 to 100 pieces.
7. How do I install the filter bag?
Simply slide the bag over the filter cage, ensuring the stainless steel ring sits securely at the top of the cage. No additional tools are required. For detailed instructions, please refer to our installation guide.
8. Can I get a certificate of origin or other export documentation?
Yes, we can provide Certificate of Origin, packing list, and commercial invoice. Other documents like Fumigation Certificate are available upon request.
Ready to improve your filtration efficiency? Request a quote or send your inquiry to our team. We look forward to serving you!
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