Metal Porous Power Sintered Filter Factory
What is Sintered Metal Powder Filter ?
Metal powder sintered filter elements are porous metal filter elements made from metal powder. Common materials include stainless steel powder, titanium powder, bronze powder, and Inconel/Hastelloy powder. Metal powders are processed through sieving and filling, cold pressing, vacuum sintering, and other processes to produce a porous metal sintered filter element.
The metal powder is easy to mold. Huahang sintered porous metal filter can be manufactured in various shapes, such as tube, disc, conical, flat-bottomed, round-bottomed, and other special customized shapes. A variety of different fittings are available to suit different installation requirements.
Huahang porous powder metal filter has high filter accuracy up to 0.1μm, the micron rating and porosity can be adjusted by powder particle size. Sparger sintered filter also offers high mechanical strength, high-temperature, and corrosion resistance, which allows it to be used in industries with high filtration requirements, such as electronic technology, chemical processing, and pharmaceutical industry, which demand high cleanliness and precision.
Stainless Steel Powder Sintered Filter
Huahang stainless steel powder sinter filter has high mechanical strength, and it can be worked at a temperature range -200℃~800℃. SUS304 316/316L can be select as the sparger filter material, is a great choice for high-temperature, high-corrosion and high-pressure condition.
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Titanium Powder Sintered Filter
The titanium powder particles are finer and more spherical, so the titanium sparger filter cartridge has a higher filter accuracy up to 0.1μm. It provides more stable retention of microorganisms and suspended particles, especiallyIdeal for sterile filtration and high-purity filtration.
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Copper Powder Sintered Filter
Also named brass powder sintered filter, bronze sintered filter. Copper sintered filter element has a uniform pore distribution and high stability, the using temperature need to <= 300℃, but it has an excellent resistance to rapid cooling and heating working environment.
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Sintered Air Muffler
Muffler filter also named filter silencer, huahang muffler can be made from stainless steel, brass or bronze. Sintered muffler can effectively reduces the transmission of airflow noise. In high-noise industries, noise levels can be reduced by approximately 30 dB to 35 dB.
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Porous Powder Sintered Tube
Huhang metal sintered powder tube filter has material of stainless steel, titanium and brass, hollow and tubular, open at both ends. The height and diameter of air sparger filter can be customized, and the filter accuracy can be adjusted by the powder particle size and sintering parameters.
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Metal Powder Filter Plate
A sintered porous filter disc has a extremely stable structure, and can withstand immense pressure, sintered disc also has a high filter efficiency. The most commonly used materials are stainless steel and bronze, and they can be flexibly customized into various shapes and sizes.
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How to Produce Porous Metal Filters ?

Sieving the Metal Powder
Sieving the metal powder ensures a stable particle size distribution; adding forming binders if necessary.

Filling and Compaction
Filling the metal powder in the mold, control the density, and then form the porous metal filter element blank with cold pressing.

Vacuum Sintering
Sintered at high temperature in a vacuum sintering furnace. If adhesives are used, degreasing is required.

Filter Element Machining
The metal powder filter after sintering need to be turing, cutting or facing, to ensure the flatness meets the installation requirements.

Finished Product Packaging
Multi-layered cardboard boxes are typically used for packaging, wooden crates and pallets are also available.

Performance Testing
Appearance and dimensional inspection, filtration accuracy testing, bubble point testing, differential pressure testing

Surface Treatment
Ultrasonic cleaning and pickling, ensuring the filter element's internal pores are clean and free of residual powder.

End Caps Welding
Different types of connections can be selected, welded to the metal powder sintered filter cartridge to form an integral sealed structure
Features of Sintered Metal Powder Filter
Metal powder sintering filter elements have a porous structure with a uniform pore distribution, allowing impurities to penetrate deep into the micropores for deep filtration. Huahang porous sintered metal filter offers high filtration accuracy, titanium powder sintered filters can achieve a filtration accuracy of 0.1 micron, making them suitable for industries requiring high-precision filtration.
Metal powder forms to a dense and polycrystalline sintered body through high-temperature vacuum sintering. The gaps between the powder particles are tightly connected. So the metal powder sintered filter cartridges have high mechanical strength, they can withstand pressure impact and are not easy to deform.
Huahang sintered porous powder filter elements possess excellent high-temperature resistance and corrosion resistance, making them suitable for high-temperature gas filtration, chemical media filtration, and corrosive liquid filtration.
The porous structure of metal powder sintered filters makes them have a strong dirt-holding capacity, suitable for long-term continuous filtration. The porous metal filters can also be cleaned by backwashing or ultrasonic cleaning and reused several times.
Application Areas of Sintered Powder Filter

Pneumatic System
Porous metal sintered filter can filter dust, water mist, and particulate matter from compressed air, protecting precision equipment components such as pneumatic valves and instruments.

Pharmaceutical & Food Industry
Huahang metal powder sintering filter can be used to filter gases produced during food and pharmaceutical processing, such as steam, nitrogen, and sterile gas.

Chemical Industry
Sintered powder filter elements can be used to filter solid particulate impurities from acidic, alkaline, and other corrosive chemical liquids, thereby protecting process equipment and pipelines.

Industrial Water Treatment Industry
Porous powder filter cartridges can remove suspended particles, sediment, rust, and other impurities from Industrial water, cooling water, and wastewater.
Huahang Sintered Metal Filter Manufacturer
Huahang Filter is a direct manufacturer with 20+ years of production experience. We possess advanced production technology and extensive manufacturing experience, particularly in the field of sintered metal filter products. We have produced a wide variety of sintering filter products, mainly including stainless steel sintered mesh filter cartridges, porous powder sparger sintered filter cartridges, sintered wire mesh, and sintered fiber felt.
Huahang sintered filter possesses significant advantages compared with other types of metal filters. Our sintered filter elements are produced based on high-quality raw material and strict production process, each filter of Huahang has high strength, good filter performance, and long service life.
Huahang has a professional technical team and a variety of advanced production equipment to support our ability to provide OEM customized sintered filter products and filtration solutions for each customer. And as the source factory for sintered filter elements, we also have a significant advantage in product pricing. Contact us to get a filter solution and a reasonable filter price!
Frequently Asked Questions
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