Stainless Steel Sintered Powder Filter Rod

Sintered Stainless Steel Filter Cartridges are high-performance porous metal filtration elements manufactured from high-quality stainless steel powder. Through a controlled sintering process, the metal particles are bonded to form a rigid porous structure with uniform pore distribution, high mechanical strength, and excellent permeability.

Available in 304 and 316L stainless steel, these filter cartridges are designed for demanding liquid, gas, and air filtration applications where high filtration accuracy, corrosion resistance, temperature resistance, and long service life are required.

The sintered structure provides stable filtration performance while allowing the filter element to be cleaned, backwashed, and reused, reducing replacement frequency and operating costs.

Product Specifications

Item	Specification
Material	Stainless Steel 304 / 316L
Product Type	Sintered Metal Filter Cartridge
Dimension	OD 30 × TH 2.5 × L 300 mm
Filtration Accuracy	5 μm
Porosity	High porosity and permeability
Compression Strength	≥ 3 MPa
Temperature Resistance	Up to 500 °C
Maximum Working Pressure	0.6 MPa
Surface	Sintered / customized surface treatment
Customization	Dimensions, filtration grade and connections available

Filtration Grades

Grade	Filter Accuracy (μm)	Max. Pore Size (μm)	Air Permeability (m³/h·m²·kPa)	Compression Strength (MPa)
S1	0.5	4	3	3.0
S2	1.0	6	5	3.0
S3	2.5	10	10	3.0
S4	8	20	80	3.0
S5	10	30	160	3.0
S6	28	60	350	3.0
S7	40	100	700	3.0
S8	65	160	1300	3.0

Filtration grades and pore sizes can be customized according to the specific operating conditions and filtration requirements.

Key Features

High Porosity and Permeability

The interconnected porous structure provides excellent fluid and gas permeability, allowing high flow rates with low pressure loss.

High Filtration Accuracy

Precisely controlled pore size enables effective removal of solid particles and contaminants from liquids and gases.

Excellent Corrosion Resistance

Stainless steel 304 and 316L provide good corrosion resistance for a wide range of industrial filtration environments. 316L is particularly suitable for applications involving chlorides and corrosive chemical media.

High Temperature Resistance

The metallic structure maintains good mechanical integrity and filtration performance at elevated temperatures, with operating temperatures up to 500 °C, depending on the application and system conditions.

High Mechanical Strength

Unlike conventional fiber or polymer filter media, the sintered stainless steel structure provides excellent mechanical strength and dimensional stability under pressure.

Cleanable and Reusable

The filter cartridge can be cleaned by backwashing, ultrasonic cleaning, or other suitable regeneration methods, allowing repeated use and reducing maintenance and replacement costs.

Stable Filtration Performance

The uniform pore structure provides consistent filtration accuracy and stable flow performance throughout the service life of the filter.

Manufacturing Process

The sintered stainless steel filter cartridge is manufactured through a controlled powder metallurgy process:

Stainless Steel Powder → Particle Size Control → Mixing → Mold Filling → Compaction → Sintering → Cooling → Machining → Cleaning → Inspection → Finished Filter Cartridge

The sintering process creates a strong metallurgical bond between metal particles while retaining interconnected pores throughout the filter body.

Applications

Sintered stainless steel filter cartridges are widely used in demanding industrial filtration systems, including:

Air and Gas Filtration
Filtration of compressed air, process gases, and industrial gases.

Liquid Filtration
Removal of suspended solids and particles from process liquids and chemical solutions.

Petrochemical Processing
Suitable for filtration systems operating under high temperature, pressure, and corrosive conditions.

Chemical Industry
Used for corrosive liquids, gases, catalysts, and process media.

Water Treatment
Applied to industrial water purification and pre-filtration systems.

Industrial Equipment
Used in hydraulic systems, lubrication systems, coolant filtration, and process equipment.

Why Choose Sintered Metal Filter Cartridges?

Compared with conventional polymer and fiber filter elements, sintered stainless steel filters offer:

High mechanical strength

Excellent dimensional stability

High temperature resistance

Good corrosion resistance

Low pressure drop

Stable filtration accuracy

Cleanable and reusable structure

Long service life

Customizable pore sizes and dimensions

Customization

Changsheng Titanium provides customized sintered metal filter cartridges according to customer drawings, samples, and operating conditions.

Customization options include:

Filter diameter and length

Wall thickness

Filtration accuracy

Pore size and porosity

304 / 316L stainless steel material

Connector and end-cap configuration

Threaded, welded, or other connection designs

Special shapes and dimensions

For filtration systems requiring high temperature resistance, high mechanical strength, corrosion resistance, and reusable filtration, sintered stainless steel filter cartridges provide a reliable and economical solution.

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