Porous Metal Membrane Roll

The Saifilter Metal Porous Membrane Roll is produced through a process of compounding metal powder with a metal wire mesh, followed by rolling and solid phase sintering (PWMCPS). Its thickness ranges between 0.30.5mm.

This synergistic combination of manufacturing technologies not only enhances the permeability of the Sinter Metal Membrane Filter Roll but also provides it with higher strength and smaller pore sizes at the micron level.

We can customize Porous Plates and Rolls according to your specific application. This customization allows for adjustments in pore size, material selection, thickness, and other parameters.

If you have specific specifications, data, or application requirements, you can communicate with Saifilter manufacturers to tailor-made the Stainless Steel Powder Wire Mesh Composite Porous Plate or Roll that meets your needs. This ensures that these filtration materials perform optimally under specific environmental and process conditions.

Membrane Filter Roll
Metal Membrane Roll

The production process involves sintering ultrafine stainless steel powder within the complex pore structure of a finely woven metal wire mesh. Sintered is a method of compacting and forming a solid material by heating or applying pressure, which is a crucial step in developing the unique phttps://www.saifilter.com/type-of-metal-woven-mesh/roperties of the metal porous membrane roll medium.

High permeability is one of the main advantages of the sinter membrane filter roll as a filtration medium. The intricate weaving of metal wires combined with sintered ultrafine stainless steel powder forms a membrane layer that allows fluids or gases to easily pass through the medium's surface while effectively capturing particles or impurities. This makes the sinter membrane filter roll particularly suitable for a variety of industrial hot gas filtering and separation scenarios.

Metal Porous Membrane Roll VS Sintered Metal Fiber Felts

1. Smaller aperture size classes and lower cost

The membrane filter roll medium is made through natural accumulation or pressure molding of metal powder, with a selectable pore size structure ranging from 0.1 to 10 micrometers.

Although this results in the metal porous membrane roll having slightly lower air permeability compared to metal fiber felts, whose pore size range is typically only between 3 to 80 micrometers, the smaller pore sizes contribute to enhanced filtration efficiency. Additionally, its production and manufacturing costs are relatively lower.

Stainless Steel Powder Wire Mesh Composite Porous Plate

Sintered metal fiber felt media

Metal Porous Membrane Roll

Porous Metal Membrane Roll Media

2. Good backflush cleaning effect

The metal porous membrane roll is made from 1015 layers of micron-sized metal powder compressed together, with the powder particles ranging in size from 10 to 30 microns. Sintering technology enables the formation of a smooth and robust film layer on the surface of the metal porous membrane, featuring a uniform distribution of pore sizes.

It is particularly suited for microfiltration (MF) and ultrafiltration (UF) separation processes for gases. Capable of withstanding prolonged use and multiple backflush cleaning cycles, this offers users a reliable and durable filtration solution, especially in industrial and laboratory settings where efficient and stable filtration performance is required.

In the filtration mechanism process, interception primarily occurs through surface micropores. When a filter cake forms on the surface, it can be cleaned through online backblowing, allowing the filter cake to easily detach.

With long-term use, the pressure loss is low. In contrast, metal fiber felts act as dirt-accumulating materials. Over time, their pores gradually become clogged with fine dust, making them difficult to clean through backblowing. This leads to greater resistance during prolonged use. 

Porous Metal Membrane Roll
Metal Membrane Roll hot air filter

Porous Ceramic Membrane VS Porous Metal Membrane

1. Advantages of Ceramic Membranes

  • Ceramic membranes typically exhibit excellent material strength.
  •  They possess superior corrosion resistance.
  •  Outstanding thermal stability is demonstrated in high temperatures and extreme conditions.
  •  Suitable for use in some demanding environments.

2. Disadvantages of Ceramic Membranes:

  • Ceramic membranes are prone to brittleness, making them susceptible to damage, particularly in applications where they are subject to vibrations or impacts.
  •  The processing of ceramics is relatively challenging, resulting in higher manufacturing costs.

3. Advantages of Porous Metal Membrane

  • Porous metal membranes are relatively more ductile, offering advantages in environments requiring resistance to vibration or impact.
  • Metal porous materials are comparatively easier to process, leading to lower manufacturing costs.

4. Disadvantages of Porous Metal Membrane

  • Porous metal membranes have shown improvements in corrosion resistance.
  • They may not be as reliable as ceramic membranes in certain harsh corrosive environments.
  • Under extremely high-temperature conditions, their performance may be inferior to ceramic membranes.

Overall, the choice between ceramic membranes and metal porous membranes typically depends on the specific requirements of the application. In applications where there is a high demand for strength and corrosion resistance, and where vibrations and impacts are less of a concern, ceramic membranes might be more suitable. On the other hand, in situations involving vibrations or impacts, metal porous membranes are the better choice.

Size of Saifilter Porous Metal Membrane Roll Technical Data

  • Material: 300 series stainless steel, nickel-based high-temperature alloy, Hastelloy alloy, etc.
  • Dimensions: Width 200500mm, 2050m/roll.
  • Grammage: 19002100g/㎡
  • Permeability:  L/dm². Min@200Pa
  • initial pressure: 120Pa
  • Aperture: 0.1micron
  • Filtration efficiency: 99.999%

Saifilter Porous Metal Membrane Roll Features And Benefits

  • Excellent machinability, weldability, and sealing performance.
  • High mechanical strength, usable under high pressures (up to 31MPa) to enhance separation capability.
  • Can withstand temperatures up to 315°C with good thermal conductivity and minimal thermal stress, ensuring membrane longevity and reliability without sudden failures.
  • Resistant to strong acids and bases, suitable for extreme pH material separation, enhancing adaptability and broadening membrane technology applications.
  • Equipped with porous gold film for direct steam sterilization, ensuring aseptic operation.


  • Chemical Industry
  • Oil Refineries and Petrochemical Plants
  • Chemical Pharmaceutical Production
  • Wastewater Treatment
  • Air Pollution

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A porous metal membrane roll is a type of filtration media made from metal with tiny, controlled pores. It is designed to separate particles and substances from fluids (liquids and gases) based on size exclusion or other filtering principles.

Yes, one of the significant advantages of porous metal membranes is their ability to be cleaned and reused multiple times. Depending on the contamination type, cleaning methods include backflushing, chemical cleaning, and thermal treatment.

Saifilter's products stand out due to their high-quality materials, superior filtration efficiency, robust construction for extended durability, and customizable options to meet specific application requirements. Their membranes also feature high permeability and excellent resistance to fouling.

While porous metal membranes are versatile, their initial cost may be higher than other materials, and they may not be suitable for all types of chemical separations, especially where ultra-fine filtration is required. Additionally, the choice of metal must be compatible with the process fluids to avoid corrosion.


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