Client B had been using traditional string-wound filter cartridges, where yarn is wound directly onto the core. While the client had been using this type of filtershad been in place for years, it came with several challenges. The yarn often shed fibers, compromising the filter’s integrity, and the uneven ends of the yarn affected the cartridge’s sealing capabilities. This led to inconsistent filtration performance, making it difficult to maintain precise control over the filtration process.
After evaluating client B’s operational setup, our technical team designed a high-precision, high-flow string-wound filter element tailored to their specific needs. The customized filter we developed for this client, features a dual-layer design for enhanced performance. The inner layer, with its pleated structure, boosts flow capacity while acting as a safeguard against fiber shedding or penetration from the outer layer. Meanwhile, the honeycomb-structured outer layer focuses on capturing contaminants efficiently, offering greater dirt-holding capacity.
The combination of these two structures maximizes their individual benefits, ensuring precise filtration and enhanced flow capacity. This design also addresses the issue of fiber shedding at the ends of the filter, delivering both a clean, professional appearance and reliable filtration performance.
Using operational data collected on-site, along with the proposed solution from our technical team, we conducted a series of detailed laboratory tests. These included analyses of key filter material properties such as pore size distribution, air permeability, flow rate, filtration efficiency, pressure drop, media compatibility, weight, and thickness. Additionally, we carefully reviewed the client’s specific requirements for flow capacity, filtration precision, and operating environment to select the most suitable yarn material. Critical design parameters, including pore size, flow rate, filtration area, and porosity, were optimized to meet these demands.
Once the production team created sample filter elements, we performed thorough visual and performance inspections. After multiple rounds of comparative testing, the technical team confirmed that the filters met both market standards and the client’s operational needs.
The high-precision, high-flow string-wound filters made a significant impact at the client’s facility. By resolving the issue of fiber shedding, the filters improved filtration efficiency by 29%. Beyond precision, they maintained low pressure drops, extending their service life and reducing the frequency of replacements. This led to lower maintenance costs and smoother operations.
The improved performance also brought greater stability to the client’s system, supporting more efficient and reliable production. These improvements not only optimized their current processes but also provided a solid foundation for long-term operational sustainability.
Our string wound filter cartridges are meticulously crafted using specific techniques, featuring tightly wound textile fibers (polypropylene, cotton, or glass fiber) around a porous framework (PP or SS core tube), creating a honeycomb structure. This design efficiently filters out suspended particles, rust, and other impurities, all while minimizing pressure drop and maximizing dirt holding capacity.
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Shanghai Pullner Filtration Technology Co., Ltd., based in the Songjiang district of Shanghai, is a leading enterprise dedicated to offering cutting-edge filtration solutions in China. We specialize in the development of filtration technology, technical consultation, as well as the research, development, production, and sale of filtration equipment, filters, and filter cartridges.
With a 10,000 square meter cleanroom and over 20 production lines, we strictly adhere to international standards to ensure product quality. Our team of highly skilled researchers and developers ensure that we swiftly deliver top-quality products and filtration solutions to our customers.
Industrial Filter Cartridge Manufacturer