304/316L Stainless Steel Inner Core for String Wound Filter Cartridge Manufacturing

The 304/316L Stainless Steel Inner Core for String Wound Filter Cartridge is an essential support component used in the manufacturing of industrial string wound filter cartridges. Installed inside the wound filter media, the stainless steel inner core provides structural support, improves pressure resistance, and helps maintain stable filtration performance during operation.

Compared with traditional PP plastic cores, stainless steel support cores offer superior mechanical strength, higher temperature resistance, and excellent corrosion resistance, making them ideal for demanding filtration applications including chemical processing, high-temperature liquid filtration, pharmaceutical filtration, and industrial water treatment.

AAL Filter supplies high-quality SUS304 and SUS316L stainless steel inner cores for string wound filter cartridge manufacturers, with customizable dimensions, perforation designs, and surface treatments to meet different production requirements.

Features

1. High Strength Support Structure for Improved Filter Durability

Manufactured from premium 304 or 316L stainless steel, the inner core provides excellent mechanical strength and rigidity to support the wound filter media.

The robust structure helps prevent filter cartridge deformation, collapse, or damage under high flow rates and differential pressure conditions, ensuring longer service life and stable filtration performance.

2. Excellent Corrosion Resistance for Various Industrial Fluids

AAL stainless steel inner cores are available in SUS304 and SUS316L materials to meet different application requirements.

304 stainless steel provides reliable corrosion resistance and is widely used in general industrial filtration applications.

316L stainless steel, with added molybdenum content, offers enhanced resistance against pitting corrosion and chemical attack, making it suitable for more demanding environments such as:

· Chemical liquid filtration

· Pharmaceutical process filtration

· Food and beverage filtration

· High-purity liquid filtration

· Corrosive media filtration

3. High Temperature Resistance for Challenging Applications

Unlike plastic filter cores, stainless steel inner cores maintain excellent structural stability under elevated temperatures.

They are suitable for applications requiring:

· High-temperature liquid filtration

· Thermal processing systems

· Industrial chemical filtration

· Special process filtration

The stainless steel construction ensures reliable performance in harsh operating conditions.

4. Precision Manufacturing for String Wound Filter Production

AAL stainless steel support cores are manufactured through precision processing techniques, including punching, welding, and surface finishing, ensuring:

· Accurate outside diameter dimensions

· Uniform perforation distribution

· Smooth surface without sharp edges

· Excellent compatibility with string winding processes

The stable dimensions help filter manufacturers improve production efficiency and maintain consistent cartridge quality.

5. OEM Customization Available for Different Filter Cartridge Sizes

AAL Filter provides customized stainless steel inner cores according to customer requirements, including:

· Different outside diameters

· Customized lengths

· Various perforation patterns

· Different wall thicknesses

· Customized connection designs

The stainless steel cores are suitable for various string wound filter cartridge sizes, including:

· 10 inch

· 20 inch

· 30 inch

· 40 inch

· 50 inch

· 70 inch

Technical Specifications

Typical Applications

Industrial Water Filtration

Stainless steel inner cores are widely used in string wound filter cartridges for:

· Industrial water treatment

· RO system pre-filtration

· Cooling water filtration

· Process water filtration

Chemical Filtration

316L stainless steel support cores are commonly used for:

· Chemical solution filtration

· Solvent filtration

· Corrosive liquid filtration

· Process chemical filtration

Pharmaceutical and Food Processing

With excellent corrosion resistance and cleanability, stainless steel cores are suitable for:

· Pharmaceutical process filtration

· High-purity water filtration

· Beverage filtration

· Food processing filtration

Electroplating and Electronics Industry

Applications include:

· Electroplating solution filtration

· Electronic chemical filtration

· High-purity process liquid filtration

Frequently Asked Questions (FAQ)

1. Why use a stainless steel inner core for string wound filter cartridges?

A stainless steel inner core provides stronger mechanical support compared with plastic cores. It improves cartridge pressure resistance, prevents deformation, and extends the service life of string wound filter cartridges.

2. What is the difference between 304 and 316L stainless steel cores?

304 stainless steel cores are suitable for general industrial filtration applications with good corrosion resistance.

316L stainless steel cores provide superior corrosion resistance and are recommended for applications involving chemicals, high-purity fluids, pharmaceutical processes, and aggressive filtration environments.

3. Can stainless steel inner cores be customized?

Yes. AAL Filter provides OEM customization services, including different diameters, lengths, perforation designs, materials, and surface treatments according to customers' string wound filter cartridge production requirements.

4. Are stainless steel cores suitable for 50-inch or 70-inch string wound cartridges?

Yes. Stainless steel inner cores can be customized for standard and extended-length string wound filter cartridges, including:

· 10 inch

· 20 inch

· 30 inch

· 40 inch

· 50 inch

· 70 inch

Partner with AAL Filter for Premium Filter Cartridge Components

AAL Filter specializes in manufacturing high-quality filter cartridge components and filtration solutions for global filter manufacturers.

Our product range includes:

· 304/316L Stainless Steel Inner Core for String Wound Filter Cartridge 

· PP Filter Cartridge Core

· Stainless Steel Support Cage

· Filter Cartridge End Caps

· High Flow Filter Cartridge Components

With advanced manufacturing capabilities, strict quality control, and flexible OEM customization, AAL Filter helps filter cartridge manufacturers improve product reliability and meet the requirements of various industrial filtration applications.

Contact AAL Filter today to get specifications, samples, and customized solutions for stainless steel inner cores.