Metal Fiber Felt Filters
LantoMetal manufactures sintered metal fiber felt, metal fiber felt filters, stainless steel fiber felt, FeCrAl fiber felt, titanium sintered fiber felt, nickel fiber felt, pleated metal felt filter cartridges and custom metal fiber filter elements for industrial filtration, high-temperature gas filtration, liquid filtration, oil filtration, chemical processing and electrochemical applications.
Sintered metal fiber felt is manufactured from fine metal fibers through fiber laying, laminating and high-temperature sintering. The resulting three-dimensional porous structure provides high porosity, large filtration area, good permeability, high dirt-holding capacity and mechanical stability.
LantoMetal supplies custom metal fiber felt products according to material, filtration rating, porosity, thickness, dimensions, shape, pleating structure, working medium, operating temperature, pressure, quantity and technical drawings.
· 304 and 316L stainless steel fiber felt
· FeCrAl, titanium, nickel and other metal fiber media
· Sintered metal fiber felt sheets and filter discs
· Pleated metal fiber felt filter cartridges
· Custom cylindrical and tubular filter elements
· Titanium sintered felt for gas diffusion layer applications
· Custom metal fiber felt according to drawings or samples
· OEM and replacement filtration solutions

Sintered Metal Fiber Felt for Deep Filtration
Sintered metal fiber felt is a non-woven porous metal filtration media made from fine metal fibers. During production, the fibers are evenly laid, laminated and sintered at high temperature. The contact points between fibers are metallurgically bonded to form a stable three-dimensional porous network.
Unlike conventional woven wire mesh, metal fiber felt provides interconnected pores throughout the thickness of the media. This makes it suitable for both surface filtration and depth filtration, particularly where high porosity, high dirt-holding capacity and low pressure drop are required.
The material can also be combined with woven wire mesh, perforated metal plates or other support structures to produce reinforced filter media and finished filter elements.
Metal Fiber Felt Filter Media
LantoMetal supplies metal fiber felt in different materials, thicknesses, filtration ratings and porosity levels.
The media can be supplied as flat sheets or further processed into finished filtration components.
Available Product Forms
· Metal fiber felt sheets
· Filter discs
· Ring-shaped filter elements
· Cylindrical filter elements
· Tubular filter elements
· Pleated filter cartridges
· Custom-shaped filter elements
· Composite metal fiber felt media
Types of Metal Fiber Felt
1.Stainless Steel Fiber Felt
304 Stainless Steel Fiber Felt
304 stainless steel fiber felt is suitable for general industrial filtration applications where corrosion resistance, mechanical stability and reusable metal filtration media are required.
Applications include:
· Liquid filtration
· Oil filtration
· Gas filtration
· Process filtration
· Chemical filtration
· Industrial machinery filtration
316L Stainless Steel Fiber Felt
316L stainless steel fiber felt provides enhanced corrosion resistance and is suitable for more demanding chemical and process environments.
It can be used for:
· Chemical filtration
· Oil and hydraulic filtration
· Process liquid filtration
· Pharmaceutical filtration
· Food and beverage filtration
· Industrial gas filtration
2.FeCrAl Sintered Fiber Felt
FeCrAl sintered fiber felt is a high-temperature metal filtration media manufactured from fine FeCrAl alloy fibers.
Its three-dimensional porous structure provides high porosity, good permeability, filtration accuracy and dirt-holding capacity while maintaining stability in demanding thermal environments.
Features
· High-temperature resistance
· Good thermal shock resistance
· Acid and alkali resistance
· High porosity
· High permeability
· High dirt-holding capacity
· Good filtration accuracy
· Washable and reusable
· Long service life
Applications
· High-temperature gas filtration
· Industrial dust collection
· Exhaust gas filtration
· Steel industry
· Power generation
· Waste incineration
· Chemical processing
· High-temperature process filtration
· Gas purification
3.Titanium Sintered Fiber Felt
Titanium Sintered Felt for Gas Diffusion Layers
Titanium sintered fiber felt is a specialized porous titanium material made from fine titanium fibers.
Titanium fibers are processed to a micron-scale diameter, evenly laid according to a controlled process, laminated and sintered in a high-temperature vacuum environment. The fibers bond at their contact points, forming a stable three-dimensional porous network.
Titanium sintered felt combines:
· High corrosion resistance
· High specific strength
· High porosity
· Good air permeability
· Large internal surface area
· High-temperature resistance
· Good mechanical stability
· Washability and reusability
These properties make titanium sintered felt suitable for gas diffusion layers, hydrogen-related electrochemical systems and specialized industrial filtration.
Titanium Sintered Felt for Hydrogen Production
Titanium sintered felt is a porous metal material suitable for selected hydrogen-energy and electrochemical applications.
Its interconnected pore structure can provide pathways for gas transport, liquid drainage and electronic conduction, while also providing mechanical support for the electrode structure.
For gas diffusion layer applications, porosity and pore structure are important because the diffusion layer needs to support both gas transport and water management.
Typical Characteristics
· Corrosion resistant
· High specific strength
· High-temperature resistance
· 60%–80% typical porosity range
· Large surface area
· Good permeability
· Mechanical support
· Washable and reusable
Actual material selection, pore structure and surface treatment should be evaluated according to the specific electrochemical system.
Gas Diffusion Layer Functions
Titanium sintered felt can serve as a porous structural material in gas diffusion layer applications.
Gas Transport
The interconnected pores provide pathways for gas movement between the bipolar plate and catalyst layer.
Water Management
The porous structure can facilitate the transport and removal of water generated during electrochemical reactions, helping reduce excessive water accumulation.
Electrical Conductivity
Titanium provides electrical conductivity, while the interconnected metal fiber structure provides conductive pathways through the porous media.
Mechanical Support
The gas diffusion layer also provides mechanical support to the membrane electrode assembly and helps maintain structural stability.
The appropriate thickness, porosity, pore structure and surface treatment should be selected according to the specific system.
Titanium Sintered Felt Specifications
SPECIFICATION | TYPICAL OPTION |
PRODUCT | TITANIUM SINTERED FIBER FELT |
RAW MATERIAL | GR1 TITANIUM FIBER |
THICKNESS | 0.2 / 0.4 / 0.6 / 0.8 MM OR CUSTOMIZED |
POROSITY | 60%–80% |
SHAPE | SHEET, ROUND, RING, DISC, POLYGON AND CUSTOM |
SURFACE TREATMENT | MMO, ELECTROPLATING OR PVD |
COATING | IRIDIUM, PLATINUM OR APPLICATION-SPECIFIC COATING |
DIMENSIONS | CUSTOMIZED |
APPLICATIONS | GAS DIFFUSION LAYERS, HYDROGEN PRODUCTION, ELECTROCHEMICAL SYSTEMS AND FILTRATION |
Note: Final specifications should be confirmed according to the actual application and operating conditions.
Surface Treatment for Titanium Sintered Felt
For selected electrochemical applications, titanium sintered felt can be evaluated with different surface treatments.
Available options include:
· MMO coating
· Platinum coating
· Iridium coating
· Electroplating
· PVD coating
The appropriate coating and treatment should be selected according to the operating environment and required electrochemical performance.
4.Nickel Fiber Felt
Nickel fiber felt is a porous metal material suitable for applications requiring electrical conductivity, thermal performance and corrosion resistance.
Fine nickel fibers are formed into a non-woven structure and bonded through sintering to create a stable three-dimensional porous network.
Depending on the application, nickel fiber felt can be used for:
· Electrochemical applications
· Hydrogen-related technologies
· Catalyst carriers
· Specialized filtration
· Gas diffusion
· High-temperature applications
Specifications
SPECIFICATION | TYPICAL RANGE |
MATERIAL | NICKEL OR NICKEL ALLOY |
THICKNESS | 0.25–5 MM |
POROSITY | 50%–94% |
FILTRATION RATING | 3–100 μm |
SHAPE | SHEET, DISC, ROUND, RING, CUSTOM |
WORKING TEMPERATURE | APPLICATION DEPENDENT |
DIMENSIONS | CUSTOMIZED |
Actual specifications can be adjusted according to the application.
Metal Fiber Felt Manufacturing Process
1. Metal Fiber Preparation
Fine metal fibers are prepared according to the required alloy, fiber diameter and application.
2. Fiber Laying
The fibers are evenly distributed to form a uniform non-woven fiber web.
3. Laminating
Multiple fiber layers can be combined to achieve the required thickness, porosity and filtration characteristics.
4. High-Temperature Sintering
The fiber structure is sintered under controlled conditions. The contact points between fibers become metallurgically bonded, creating a stable three-dimensional porous structure.
5. Cutting and Forming
The sintered material can be processed into:
· Sheets
· Discs
· Rings
· Tubes
· Cylindrical elements
· Pleated elements
· Custom shapes
6. Filter Assembly
Depending on the design, the metal fiber felt can be combined with support mesh, perforated plates, end caps and other metal components.
Metal Fiber Felt Filter Specifications
SPECIFICATION | AVAILABLE OPTIONS |
MATERIAL | 304, 316L, FECRAL, TITANIUM, NICKEL AND OTHER ALLOYS |
FILTRATION TYPE | SURFACE AND DEPTH FILTRATION |
FILTER RATING | APPLICATION-SPECIFIC |
THICKNESS | CUSTOMIZED |
POROSITY | APPLICATION-SPECIFIC |
PRODUCT FORM | SHEET, DISC, TUBE, CARTRIDGE, PLEATED ELEMENT |
STRUCTURE | SINGLE-LAYER, MULTILAYER OR COMPOSITE |
SUPPORT LAYER | WIRE MESH OR PERFORATED PLATE |
SHAPE | ROUND, RECTANGULAR, CYLINDRICAL AND CUSTOM |
DIMENSIONS | CUSTOMIZED |
CONNECTION | ACCORDING TO DRAWING OR HOUSING |
CLEANING | APPLICATION DEPENDENT |
PRODUCTION | OEM, REPLACEMENT AND CUSTOM PRODUCTION |
Applications of Metal Fiber Felt Filters
Polymer Filtration
Metal fiber felt can be used in polymer and high-viscosity process filtration where high dirt-holding capacity and reusable metal media are required.
High-Temperature Gas Filtration
Stainless steel and FeCrAl fiber felt can be used for hot gas, exhaust and industrial process gas filtration.
Oil and Hydraulic Filtration
Pleated metal fiber felt filter elements can be used for hydraulic oil, lubricating oil and industrial machinery filtration.
Chemical Filtration
316L stainless steel fiber felt can be considered for chemical and process filtration where corrosion resistance and cleanability are important.
Gas and Air Filtration
The high permeability of metal fiber felt makes it suitable for selected industrial gas purification and compressed gas filtration applications.
Food and Beverage Filtration
Stainless steel fiber felt can be considered for suitable food and beverage filtration processes where the material and manufacturing requirements are compatible with the application.
Water and Process Liquid Filtration
Metal fiber felt can be used for selected industrial water and process liquid filtration applications.
High-Temperature Dust Removal
FeCrAl fiber felt can be used for particulate filtration in demanding high-temperature environments.
Hydrogen and Electrochemical Applications
Titanium sintered fiber felt can be used in selected electrochemical and hydrogen-related applications, including gas diffusion layer structures requiring a porous, corrosion-resistant and mechanically stable metal media.
Metal Fiber Felt vs. Sintered Wire Mesh
Different porous metal filtration technologies provide different performance characteristics.
FEATURE | METAL FIBER FELT | SINTERED WIRE MESH |
STRUCTURE | 3D NON-WOVEN FIBER NETWORK | MULTILAYER WOVEN WIRE MESH |
FILTRATION | SURFACE + DEPTH FILTRATION | CONTROLLED MESH FILTRATION |
POROSITY | HIGH | STRUCTURE DEPENDENT |
DIRT HOLDING | HIGH | MEDIUM TO HIGH |
FINE FILTRATION | EXCELLENT | EXCELLENT |
MECHANICAL STRENGTH | HIGH | VERY HIGH |
PLEATING | SUITABLE | SUITABLE |
CLEANABILITY | GOOD | EXCELLENT |
TYPICAL FORMS | SHEETS, DISCS, CARTRIDGES, TUBES | DISCS, PLATES, CARTRIDGES, ELEMENTS |
Metal fiber felt is particularly suitable when the application requires high porosity, high dirt-holding capacity and depth filtration.
Sintered wire mesh is generally preferred when the application requires precise filtration, high mechanical strength and a defined multilayer mesh structure.
Custom Metal Fiber Felt Filters
LantoMetal manufactures custom metal fiber felt filtration products according to technical drawings, samples and application requirements.
Customers can provide:
· Technical drawings
· Existing filter samples
· Sample photographs
· Filter housing dimensions
· Required filtration performance
· Operating conditions
· Required quantity
Customization Options
REQUIREMENT | AVAILABLE OPTIONS |
MATERIAL | STAINLESS STEEL, FECRAL, TITANIUM, NICKEL AND OTHER ALLOYS |
FIBER STRUCTURE | SINGLE-LAYER OR MULTILAYER |
FILTER RATING | CUSTOMIZED |
THICKNESS | CUSTOMIZED |
POROSITY | CUSTOMIZED |
PRODUCT SHAPE | SHEET, DISC, RING, TUBE, CYLINDER, PLEATED ELEMENT |
SUPPORT STRUCTURE | WIRE MESH OR PERFORATED PLATE |
PLEATING | CUSTOMIZED |
CONNECTION | CUSTOMIZED |
DIMENSIONS | ACCORDING TO DRAWING |
QUANTITY | OEM AND PRODUCTION ORDERS |
Why Choose LantoMetal?
LantoMetal provides custom porous metal filtration products for industrial buyers, distributors, filter manufacturers and equipment companies.
Our product range includes:
· Sintered metal fiber felt
· Stainless steel fiber felt
· FeCrAl fiber felt
· Titanium sintered fiber felt
· Nickel fiber felt
· Pleated metal fiber felt filter cartridges
· Metal fiber felt filter discs
· Tubular and cylindrical filter elements
· Composite fiber felt and wire mesh structures
· OEM and replacement filter elements
· Custom metal filtration components
We focus on material selection, filtration performance, dimensional accuracy and application-specific filter construction.
Request a Custom Metal Fiber Felt Filter Quote
To evaluate your requirements and prepare a quotation, please provide as much of the following information as available:
· Material
· Filtration rating
· Fiber felt thickness
· Porosity
· Filter dimensions
· Filter shape
· Pleating requirements
· Support structure
· Connection type
· Working medium
· Operating temperature
· Operating pressure
· Flow rate, if available
· Required quantity
· Technical drawings or sample information
FAQ
What is sintered metal fiber felt?
Sintered metal fiber felt is a porous metal filtration media made from fine metal fibers. The fibers are laid, laminated and sintered at high temperature to form a stable three-dimensional porous network.
What is titanium sintered fiber felt used for?
Titanium sintered fiber felt can be used for gas diffusion layers, hydrogen-related electrochemical applications, industrial filtration and other specialized porous metal applications.
What is the typical porosity of titanium sintered felt?
A typical titanium sintered fiber felt can have a porosity of approximately 60%–80%, depending on the fiber structure, thickness and manufacturing process.
Can titanium sintered felt be used as a gas diffusion layer?
Yes. Its interconnected porous structure can provide pathways for gas transport and liquid drainage while offering mechanical support and electrical conductivity. The exact material and surface treatment should be selected according to the specific electrochemical system.
Can titanium sintered felt be coated?
Yes. Depending on the application, MMO, platinum or iridium coatings can be evaluated. Electroplating and PVD are possible surface-treatment approaches.
What materials are available for metal fiber felt?
Common materials include 304 stainless steel, 316L stainless steel, FeCrAl and titanium. Nickel and other alloy fiber media can also be evaluated for specialized applications.
Can metal fiber felt be made into filter cartridges?
Yes. Metal fiber felt can be processed into pleated filter cartridges, cylindrical filter elements, tubular filters, filter discs and custom-shaped filtration components.
Can you manufacture according to drawings or samples?
Yes. LantoMetal supports custom production based on technical drawings, samples, product photographs, existing filter dimensions and application requirements.
What information is needed for a quotation?
The most useful information includes material, filtration rating, dimensions, thickness, porosity, flow rate, working medium, temperature, pressure, connection type and quantity. Drawings or samples are especially helpful for custom filter projects.
Request a Quote
For technical drawings, sample photographs or specifications, please contact:
LantoMetal can review your requirements and recommend a suitable metal fiber felt material, filtration structure and custom filter configuration.



