Sintered Metal Powder Filter Cartridge - High-Quality China Suppliers and Factory for Precision Filtration
Product Parameters
| Project | Parameter Range/Typical Values | Units | Description |
| Materials | 304/316L/310/copper/nickel, etc. | - | Commonly used 316L is suitable for most corrosive media |
| Aperture (rated) | 0.1-200 | µm | Can be used for coarse filtration from 0.1 µm ultra precision to hundreds of µm |
| Porosity (porosity) | 25-60 | % | Common 30-45% |
| Filtration efficiency | 60% - ≥ 99.999% (apparent pore size/particle size) | % | Calculated by specific particle size |
| Working temperature | -200-800 (depending on material) | ℃ | Stainless steel can withstand high temperatures (300-700 ℃) |
| Maximum working pressure | 0.6- ≥ 25 | MPa | Depending on the structure and joint design |
| Size (diameter x length) | Customization, commonly seen as Φ 10-300 × 20-1200 | mm | Customizable according to mold or welding requirements |
| Interface method | Card type, flange, thread, welding, flanging, etc. | - | Select based on system interface |
| Surface treatment | Polishing, sandblasting, passivation, coating | - | Improving corrosion resistance or cleanliness |
| Structural form | Whole sintering, laminated/gradient, layered structure | - | Multiple pore size gradients can be used to improve efficiency |
| Repeated cleaning lifespan | ≥ 100 times (depending on operating conditions) | times | properly maintained for a long lifespan |
| Finished product inspection | Gas permeation test, particle retention test, mechanical strength | - | Factory inspection according to standards |
Note: The above are common reference values, and specific parameters can be customized according to the medium, temperature, pressure, and accuracy requirements.
Production process of Sintered metal powder filter cartridge
Raw material preparation: Select qualified metal powder (particle size, chemical composition), and add binders or additives if necessary.
Powder batching and screening: Screen and mix according to the formula to ensure the particle size distribution and uniformity of the powder.
Molding: compression molding or injection molding; Sometimes isostatic pressing is used to improve density uniformity.
Pre burning/degreasing: (if containing organic binders): Low temperature heating to remove organic matter and prevent sintering defects.
Sintering (high temperature): Heat up according to the process curve in a protective atmosphere or vacuum to the sintering temperature and keep it warm to form a dense/porous metal skeleton.
Heat treatment/tempering: (if necessary): Improve mechanical properties or eliminate stress.
Mechanical processing and finished product processing: cutting, turning end faces, punching, welding flanges or joints, flanging, etc.
Surface treatment and cleaning: such as acid pickling passivation, sandblasting or polishing, ultrasonic or chemical cleaning to remove residual impurities.
Inspection and testing: size, porosity, gas permeability, filtration efficiency, pressure resistance, metallographic examination, etc.
Packaging and shipping: Protection, cleanliness level labeling, and accompanying inspection reports.
Advantages of Sintered metal powder filter cartridge
High mechanical strength
The metal substrate can withstand large pressure differentials and impacts, making it more durable than sintered ceramics or fiber filter materials.
High temperature & pressure resistance
Suitable for high temperature and high pressure working conditions, ensuring long-term stable operation.
Corrosion resistance
Stainless steel, nickel based materials, and other alloys perform exceptionally well in various highly corrosive chemical media.
Washable/Renewable
Supports multiple regeneration methods such as backwashing, ultrasonic, chemical cleaning, and heat treatment for a long lifespan.
Controllable pore structure
By adjusting powder particle size and sintering processes, the pore size and porosity can be customized for targeted retention performance.
No fiber shedding & residue-free
No adhesive residue or fiber shedding, making it ideal for strict cleanliness requirements (pharmaceuticals, food, semiconductors).
Customizable design
Shape, size, interface, and surface treatment can be tailored as needed for complex system integration.
Application of Sintered metal powder filter cartridge
Petrochemical and refining
Liquid/gas pretreatment, catalyst protection, oil filtration, and degassing/deslagging processes.
Pharmaceutical and Bioengineering
Process filtration without fiber contamination, pre-treatment before sterilization, gas dialysis, and liquid clarification.
Food and Beverage
Syrup, beverage, alcohol clarification, liquid recycling, and purification.
Automotive and aviation
Fuel/lubricant filtration, hydraulic system protection, and fuel injection pre-filtration.
Electricity and Energy
Steam turbine, gas turbine inlet and oil system filtration, compressed air purification, hydrogen, and natural gas purification.
Precision Manufacturing & Semiconductors
Ultra-pure gas and chemical filtration, as well as vacuum system protection.
Environmental Protection & Water Treatment
Industrial wastewater filtration, oil-water separation, and front-end filtration for flue gas desulfurization/denitrification.
Metallurgy and casting
Metal liquid filtration (specific materials), gas distributor, and slag interception.
Laboratory and scientific research
Used as a filtering device, gas distribution and diffuser, catalytic bed carrier, etc.
Selection suggestions and maintenance points
- Select the rated pore size based on the filtered medium (gas/liquid), particle size distribution, and required retention efficiency.
- Considering the working temperature and corrosiveness, choose suitable materials (such as 316L or more corrosion-resistant nickel based alloys).
- If frequent cleaning is required, choose a structure that is easy to disassemble or can be backwashed in situ.
- The maximum allowable pressure difference should have a safety margin to avoid exceeding the design pressure difference when the filter is clogged.
- Cleaning methods: backwashing (liquid/gas), ultrasonic cleaning, acid washing/alkali washing (note material compatibility), high-temperature burning to remove organic matter.
- Regularly check the filtration efficiency and pressure drop curve, and clean or replace if there is a significant increase in pressure drop or decrease in efficiency.
If needed, I can:
- Based on your working conditions (medium, temperature, pressure, target particle size, flow rate, etc.), help recommend specific model parameters;
- Provide standardized technical parameter tables (which can be directly used for quotation or technical specifications);
- Explain the specific operational steps and precautions for common cleaning and regeneration processes.
Frequently Asked Questions (FAQ)
What materials are available for Sintered Metal Powder Filter Cartridges?
They can be manufactured from 304, 316L, and 310 stainless steel, as well as copper, nickel, and other specialized alloys. 316L is the most commonly used material due to its excellent resistance to corrosive media.
What is the maximum working temperature they can withstand?
The working temperature ranges from -200°C to 800°C depending on the material chosen. Stainless steel structures can operate stably at high temperatures between 300°C and 700°C.
How can these filter cartridges be cleaned and regenerated?
They support various cleaning methods including liquid or gas backwashing, ultrasonic cleaning, chemical cleaning (acid/alkali washing), and high-temperature burning to eliminate organic residues.
What are the main advantages over fiber or ceramic filters?
Sintered metal cartridges offer much higher mechanical strength, superior pressure resistance, no fiber shedding, and a highly customizable pore structure. They can also be cleaned and reused over 100 times.
How do I choose the correct pore size for my system?
Selection depends on the state of the medium (gas or liquid), the particle size distribution of the impurities, and your target filtration efficiency. Rated pore sizes typically range from 0.1 µm to 200 µm.