Capsule Filter

Discover our Capsule Filter: Tailor your filtration with diverse membrane materials!

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Sanitek Filter, a premier capsule filter supplier in China, offers scalable options for critical point-of-use filtration across industries, including healthcare. Our capsule filters are meticulously designed for efficient liquid and gas filtration. With sizes ranging from 500 cm2 to over 2100 cm2 of filter surface area per capsule filter, our range provides versatility. Sanitek simplifies scalability, ensuring uniformity in form factor and materials from lab to production. We offer a wide material selection, including PES, ePTFE, Nylon, PVDF, and Polypropylene, for customized solutions. Our capsule filters are categorized for bio-burden reduction, general use, and sterilization, addressing various filtration needs effectively.

Non-fiber releasing

Non-fiber releasing

Thermal bonding

Thermal bonding

100% integrity tested

100% integrity tested

FDA compliant

FDA compliant


Features of capsule filter

Capsule filter perferctly been used in large volume media preparation, pilot scale manufacturing, and sterile filtration of buffers or biological solutions, also capsule filters particularly suitable for point-of-use filtration in laboratory water systems.

  • Simple and Reliable Operation
    Capsule filters boast straightforward operation, ensuring reliability in filtration tasks.
  • Ease of Assembly and Use
    They are designed for effortless assembly and user-friendly operation, simplifying filtration processes.
  • Wide membrane material
    PES, PTFE, PVDF, PP, GF, Nylon
  • Broad Chemical Compatibility
    These filters demonstrate compatibility with a wide range of chemicals, enhancing versatility in filtration applications.
  • High Flow Rate
    Capsule filters facilitate rapid filtration due to their efficient flow rate, expediting sample processing.
  • Multi-layer Structure
    Their multi-layered design provides ample dirt-holding capacity, ensuring prolonged usage without compromising performance.
  • Cost-effective and Efficient
    Capsule filters offer a cost-effective solution without compromising filtration efficiency, delivering value for filtration needs.
  • Convenient Connection
    They feature convenient connection options, simplifying integration into filtration systems.
  • Metal-Free Construction
    Capsule filters contain no metal parts, reducing the risk of contamination and ensuring purity in filtration processes.

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Sanitek has the answers to common questions about capsule filter and filter cartridges in critical process filtration.


Capsule filter are suggested for filtration of large volume of liquids and gases with engineering for rapid aqueous sample processing and final filtration.

Inside capsule filter, there has one pleated carridge filter to provide large membrane area for high throughput and high flow rates.

Various membrane media are available, such as PES, PTFE, PVDF, PP and Nylon, provides efficient filtration solution.

Capsule filters undergo sterilization via gamma irradiation before packaging, and their polypropylene housing, featured in most models, ensures effortless and rapid installation with no maintenance needed.

Common Questions About Process Filtration

Common Questions about SanitekWhat is capsule filter?

A complicated one-piece filter device known as a capsule filter is ready for use; it is actually a Standard cartridge or Mini-Cartridge soldered inside a polypropylene container (body). The layout makes it possible to use capsules without mounting them in a steel filter holder.

The capsule is made of high-strength polypropylene that is leak-tight and features a variety of filtration materials (membrane, fiber, mesh, etc.) with a variety of micron ratings (pore sizes). The majority of Sanitek Membrane’s filter cartridges can be released in capsule shape.

In the fields of medicine, microbiology, pharmacy, microelectronics, the food industry, etc., membrane-based capsule filters are used for preliminary, fine, polishing, and sterilizing filtration of liquid and gaseous media from mechanical impurities and microorganisms with the size above or equal to 0.1 m.

Common Questions about SanitekHow do capsule filters work?

Capsule filters are a popular choice for filtration requirements, thanks to their compact design and easy installation. They consist of a small housing unit with an inlet and outlet, which contains a filter media or membrane. As liquid or gas enters the capsule filter, the filter media or membrane traps and removes particles or contaminants. The filtered liquid or gas then exits the outlet.

Capsule filters are suitable for small-scale filtration applications, ranging from laboratory to pharmaceutical industries, and provide quick and efficient filtration solutions. Capsule filters are also available in disposable formats, which eliminates the need for cleaning and sterilization.

Common Questions about SanitekWhat are capsule filters made of?

Capsule filters are typically made of a variety of materials, including polypropylene, polycarbonate, and acrylics, with the choice of material depending on the specific application. The filter media or membrane is placed inside the capsule filter housing unit and is made of materials such as polyethersulfone (PES), Nylon, or polytetrafluoroethylene (PTFE).

In addition to the materials used, capsule filters may be sterilized using gamma radiation, ethylene oxide, or by autoclaving. It’s important to choose the right materials and sterilization method for each application to ensure maximum effectiveness and product stability.

Common Questions about SanitekWhat is the difference between a capsule filter and a membrane cartridge filter?

The main distinction is in their design and filtration mechanism. A capsule filter is a compact unit that can contain various types of filter media, including membranes. It typically has a smaller filtration area, designed for small-scale applications and single-use scenarios.

In contrast, a membrane cartridge filter consists of a cylindrical housing filled with a specific membrane material for precise filtration. Cartridge filters are often used in larger-scale industrial applications requiring high-efficiency filtration. While both filters can include membranes and serve the purpose of removing contaminants, but their size, filtration area, and reusability options differentiate them based on specific filtration requirements.

Common Questions about SanitekWhat are the uses of a capsule filter?

Capsule filters are widely used in various industries for small-scale filtration needs, including laboratory research, pharmaceutical manufacturing, biotechnology, food and beverage processing, and water treatment. They provide quick and efficient filtration solutions in a compact and easily replaceable format.

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