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Help CenterIndustrial String-Wound Cotton Filter Cartridge With Technical Training and Free Replacement Warranty for First Year
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As a trusted manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory is proud to offer the Industrial String-Wound Cotton Filter Cartridge, designed to deliver superior depth filtration for demanding industrial applications. Our cotton wound cartridges are crafted from high-purity cotton fibers, wound in a precise pattern to trap contaminants throughout the entire depth of the cartridge, ensuring consistent performance and long service life. With an annual export value exceeding US$5 million and a global customer base across North America, Europe, Asia, and beyond, we combine decades of manufacturing expertise with a commitment to quality and customer support. Every cartridge includes complimentary technical training and a free replacement warranty for the first year, giving you peace of mind and optimal filtration results.
Our string-wound cotton filter cartridges are engineered for high dirt-holding capacity and low pressure drop, making them ideal for pre-filtration, process water, and a wide range of liquid filtration applications. The cotton fibers are thermally bonded without the use of binders or adhesives, ensuring chemical compatibility and minimal extractables. Available in various micron ratings and lengths, these cartridges can be customized to fit your specific housing dimensions and filtration requirements.
Product Features & Benefits
- High Purity Cotton Fiber: Made from natural, food-grade cotton, free from chemical additives, ensuring safe use in potable water and food processing.
- String-Wound Construction: A continuous winding pattern creates a graded density structure, capturing particles from coarse to fine, maximizing dirt-holding capacity.
- Excellent Temperature & Pressure Tolerance: Withstands up to 60°C (140°F) and 4.0 bar (58 psi), suitable for hot water and high-flow systems.
- Wide Micron Range: Available from 1 to 100 microns, allowing precise filtration from fine sediment to larger particulates.
- Customizable Dimensions: Offered in standard lengths of 10, 20, 30, and 40 inches, with outer diameter 2.5 inches and inner diameter 1.0 inch. Non-standard sizes available upon request.
- Core Options: Choose between stainless steel or polypropylene cores to match your system's chemical compatibility and strength needs.
- Free First-Year Replacement Warranty: If any manufacturing defect is found within the first year, we will replace the cartridge at no cost – a testament to our confidence in quality.
- Technical Training Included: Our team provides online or on-site training to help your staff optimize cartridge installation, change-out schedules, and troubleshooting.
Technical Specifications
| Parameter | Value |
| Material | 100% Cotton Fiber |
| Micron Rating | 1, 5, 10, 20, 50, 100 microns (custom) |
| Length | 10", 20", 30", 40" (custom) |
| Outer Diameter | 2.5" (63 mm) |
| Inner Diameter | 1.0" (25 mm) |
| Max Operating Temperature | 60°C (140°F) |
| Max Differential Pressure | 4.0 bar (58 psi) |
| Core Material | Stainless Steel 304 or Polypropylene |
| End Caps | Optional: open-end, double open-end, or gasket |
| Applications | Water treatment, chemicals, food & beverage, pharmaceuticals, oil & gas |
Each cartridge is manufactured under strict quality control to ensure consistent winding density and uniform filtration performance. The cotton fibers are selected for their natural absorbency and mechanical strength, providing excellent removal of sediment, rust, sand, and other suspended solids. Compared to pleated or melt-blown filters, our string-wound design offers a deeper dirt-holding capacity, which translates to longer intervals between replacements and lower overall operating costs.
Why Choose Our Industrial String-Wound Cotton Filter Cartridge?
- Proven Manufacturing Experience: With over 25 years in the wire mesh and filtration industry, we understand the nuances of producing reliable, high-performance cartridges.
- Global Reach: Our products are exported to more than 10 major markets worldwide, including North America, Europe, South America, and Southeast Asia, meeting diverse international standards.
- Comprehensive Support: The included technical training ensures your team can maximize cartridge efficiency, and the free replacement warranty eliminates risk during the first year.
- Cost-Effective Filtration: The high dirt-holding capacity reduces the frequency of cartridge changes, saving you money on consumables and labor.
At Anping County Boli Hardware Wiremesh Products Factory, we are committed to providing products that deliver consistent results. Our annual export value of US$5–10 million reflects the trust our global customers have placed in us. We ship from major ports in Tianjin, Qingdao, and Shanghai, ensuring timely delivery to your location. Whether you need a standard 10-inch cartridge or a custom 40-inch configuration, we can meet your requirements.
Ready to improve your filtration efficiency? Contact us today for a quote, technical consultation, or sample request. Our team is ready to assist you with the right cartridge solution and the training to make it work perfectly. Choose reliability, choose expertise – choose our Industrial String-Wound Cotton Filter Cartridge.
Frequently Asked Questions
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Q: What is the typical lifespan of a cotton string-wound cartridge?
A: Lifespan depends on the feed water quality and flow rate. Under normal conditions (low turbidity), a 10-micron cartridge can last 3–6 months. For heavy sediment loads, replacement may be needed every 1–3 months. Our technical training will help you establish a monitoring schedule. -
Q: Can I use this cartridge for hot water applications?
A: Yes, the cartridge is rated for continuous operation up to 60°C (140°F). For higher temperatures, please consult our team for alternative materials. -
Q: What does the free replacement warranty cover?
A: The warranty covers manufacturing defects such as loose winding, broken core, or end cap failure within the first year from purchase. It does not cover damage caused by improper installation or extreme operating conditions. Simply contact us with proof of purchase, and we will send a replacement. -
Q: Is technical training provided remotely or on-site?
A: We offer both options. Remote training via video call is standard, but on-site training can be arranged for large orders or special projects (travel costs may apply). -
Q: What micron rating should I choose for my application?
A: For general pre-filtration, 20–50 microns is common. For fine filtration (e.g., drinking water or process water), 5–10 microns is recommended. Our technical team can help you select the optimal rating based on your specific contaminant profile. -
Q: Are these cartridges suitable for food-grade applications?
A: Yes, our cotton fiber is food-grade quality and does not contain binders or adhesives. They are safe for use in potable water and food processing, provided the system is properly maintained. -
Q: Can I get a sample before placing a bulk order?
A: Absolutely. We offer sample cartridges for evaluation. Please contact us to discuss the micron size and dimensions you need, and we will provide a sample with a small shipping fee. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, the MOQ is 50 pieces. For custom sizes, the MOQ may be higher. Please contact our sales team for details.
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