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String Wound Filter Cartridge

A string wound filter cartridge is made by tightly winding high-quality fiber materials, such as polypropylene or cotton yarn, around a porous core to create a deep filtration structure. It offers high filtration precision and excellent contaminant retention, effectively removing suspended solids, particles, rust, and sediments. This type of filter is widely used in liquid filtration processes in industries such as water treatment, food and beverage, petrochemicals, pharmaceuticals, and electronics. It is especially suitable for applications requiring long service life and low-pressure drop.

Technical Parameter

  • Media material: Polypropylene ,Cotton,Fiber Glass

  • Core Material: Polypropylene,SUS 403,SUS 316

  • Preeision:1um-300um

  • Length:10”、20"、30”、40"

  • Outer diameter: 63.114mm(BB)

  • Inner diaieter:30mm/28mm

  • Conneetion: Flat,222,226

  • Max work Temp: Polypropylene string mateh with plastie frame: 65degrees

  • Polypropylene string match with galvanized iron: 100 degreese 

  • Absorbent cotton match with stainless steel skeleton: 120 degrees





Depth Filtration Built for Industrial Toughness

These cartridges are manufactured by tightly winding polypropylene, cotton, or fiberglass yarn around a porous core. This creates a gradient density structure that captures particles throughout the entire depth of the cartridge. 

While different from pleated filter cartridges, they complement such systems perfectly in pre-filtration or high-load situations, where longer life and chemical resistance are required.


Efficient Replacement for Standard Filter Cartridges

As a leading producer of water filter replacement cartridges, EAST FILTRATION provides wound filters that are interchangeable with traditional pleated filter cartridges in terms of fit and performance. They are widely used in industries 

like food & beverage, water treatment, petrochemical, and pharmaceuticals, where fine particulate removal is essential.


Trusted by Global Filter Cartridge Suppliers

Our reputation as professional filter cartridge suppliers means we deliver consistency, reliable quality, and flexibility for OEMs and wholesale clients. Each cartridge undergoes strict quality control to meet performance expectations in demanding

 environments, making them ideal replacement water filter cartridges.



Product Advantages

  • High Dirt-Holding Capacity: Captures contaminants throughout its depth, often outperforming conventional pleated filter cartridges in heavily contaminated systems.

  • Long-Lasting & Durable: Reduces downtime and replacement frequency, making them cost-effective replacement water filter cartridges.

  • Flexible Material Options: Available in polypropylene, cotton, or fiberglass to match application needs — perfect for chemical, food-grade, or general use.

  • Multiple Micron Ratings & Sizes: Offered in a wide range from 1μm to 300μm and lengths of 10", 20", 30", and 40" to fit various water filter replacement cartridges systems.

  • OEM/Wholesale Support: As experienced filter cartridge suppliers, we provide scalable solutions for global procurement and private-label markets.




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About Us

Precision Filtration Solutions from a Trusted Chinese Manufacturer

EAST Filtration (Shanghai) Co., Ltd. is a high-tech enterprise specializing in the research, production, sales, and technical services of filtration products. With over 12 years of experience, we are committed to delivering high-quality filtration solutions to our clients worldwide.

Core Manufacturing Capabilities and Quality Assurance

Certifications: Our commitment to quality and environmental standards is demonstrated through our certifications, including ISO9001, ISO14001, CE, and SGS.

Advanced Manufacturing: Operating within a 5,000 m² facility in Shanghai, we are equipped with advanced fabricating machinery and staffed by experienced technicians, ensuring efficient and precise production processes.

Customization and OEM Services: We offer a wide range of products adhering to American, Japanese, and German standards. Our capabilities include producing substitutes for imported products and various non-standard items, tailored to meet specific customer requirements.

Production Strength

Facility Size: 5,000 m² manufacturing campus.

Workforce: A team of skilled technicians and full-time workers dedicated to maintaining high production standards.

Global Reach: Our products are distributed across more than 30 cities in China and exported to countries including the United States, Canada, Italy, Malaysia, and Japan.

Commitment to Sustainability

We adhere to ISO14001 environmental management standards, reflecting our dedication to sustainable practices and minimizing environmental impact throughout our operations.

Customer Collaboration Process

Consultation: Understanding client needs and application requirements.

Product Selection: Assisting in choosing the appropriate filtration solutions.

Customization: Providing tailored products to meet specific standards and requirements.

Quality Assurance: Ensuring products meet stringent quality standards before delivery.

After-Sales Support: Offering ongoing technical support and services post-purchase.

Global Service Capability

Our international clientele includes renowned companies such as BASF, General Motors, Master Kong, Bright Dairy, and SAKATA INX. We are actively seeking global wholesale partners, offering benefits like free samples, market support, and comprehensive after-sales services to foster mutually beneficial relationships.

 

FAQ

Who are we?

EAST Filtration (Shanghai) Co., Ltd. is a high-tech enterprise based in Shanghai, China, specializing in the research, production, sales, and technical services of filtration products.


How can we guarantee quality?

Our commitment to quality is demonstrated through our ISO9001, ISO14001, CE, and SGS certifications. We operate a 5,000 m² facility equipped with advanced machinery and staffed by experienced technicians to ensure high-quality production.


What can you buy from us?

We offer a wide range of filtration products, including filter housings, liquid filter bags, filter cartridges, air and dust filters, filter accessories, and water treatment systems.


Why should you buy from us and not from other suppliers?

Our strengths lie in our certified quality standards, advanced manufacturing capabilities, ability to customize products to various international standards, and a proven track record of serving global clients like BASF and General Motors.


What services can we provide?

We provide comprehensive services, including product consultation, selection assistance, customization, quality assurance, and after-sales technical support.


Looking for robust and cost-effective replacement water filter cartridges for industrial use?

Contact EAST FILTRATION today — your trusted filter cartridge supplier for wound and pleated filter cartridges designed to meet your exact filtration standards.