Filson: Professional Sintered Felt Manufacturer

As a professional manufacturer and supplier of sintered felt, Filson has advanced technology, skilled staffs, fast and on-time delivery.

  • Available for diverse specific requirements of customers
  • Extended service life thanks to cleanable and reusable
  • Strong pollution carrying capacity with high filtration accuracy
  • Stable performance backed by high resistance to heat and corrosion
  • Thoughtful service by experienced and friendly staffs and equipment

What is Sintered Felt

Filson sintered felt is created by non-woven filter medium, which bonding and compressing through sintering process. High-temperature sintering process enables it enjoying excellent corrosion-resistant, strong and premium resistance to high temperature and stress.

With higher porosity and uniform distribution, Filson sintered felt shows exceptional dirt-holding capacity. It has high porosity to increase permeability, which is 20 times higher than other felt. Therefor, it is an ideal choice for filtration of gas and liquids, even in challenge conditions.

Filson sintered felt is available for various materials, such as stainless steel, titanium, nickel, etc. Moreover, its ratings as low as 1 micron and will not shed or break like conventional materials. Based on requirements, it can be welded, folded into different shapes.

Sintered Felt Categories by Materials

Stainless Steel Sintered Felt

With fully stainless steel construction, Filson stainless steel sintered felt has excellent resistance to elevated temperature and corrosion. With superior porosity and great permeability, it has high dirt holding capacity and filtering accuracy.

Titanium Felt

Filson titanium felt attributes high porosity, compact structure, pure titanium materials, great electrical conductivity and longer service life, hence it regards as an ideal solution for various applications, such as electrolysis industry, new energy, diffusion medium, new battery material.

Platinized Titanium Fiber Felt

Having platinum coating, Filson platinized titanium fiber felt has premium oxidation resistance to be widely used in liquid/gas diffusion layer (LGDLs). In order to improve its electrical conductivity and diffusion ability, it can increase diameter and thickness.

Nickel Felt

Filson nickel felt is produced from non-woven nickel fiber medium and advanced sintering technology, so it features with high porosity, large flow rate and large dirt holding capacity. It usually used for projects with large pressure, corrosive fluids and highly viscous media.

FeCrAL Sintered Fiber Filter

By adopting combined process of heating and pressurizing,Filson FeCrAL sintered fiber filter offers high temperature resistance up to 1425°C. What’s more, it offers excellent properties like oxidation resistance, high thermal load, longer service life and environment protection.

Sintered Felt Types by Shapes (4)

  • Pleated Sintered Fiber Felt
    With three dimensional fiber structures and uniform pleats, Filson pleated sintered fiber felt exhibits well in depth filtration for its high porosity, filter rating accuracy and large surface area. With high dirt holding capacity, it enjoys long service life to prolong replacement intervals.
  • Sintered Fiber Felt Cartridge
    Filson sintered fiber felt cartridge can achieve high filtration efficiencies by combining depth and tortuosity. Thanks to interlaced mesh structure, it has robust structure than ordinary types. Due to its high temperature resistance and smooth silk hole, it can optimal your applications.
  • Thanks to its mechanical strength after sintering process, Filson sintered metal fiber felt disc has low risks of fiber-shedding and stable filtration precision, which provides high carrying amount. It is also available for filtration of high viscosity materials due to low pressure low and high velocity.
  • Filso sintered metal fiber sheet is created from multi-layers metal fiber and bonding through sintering process, hence it has excellent mechanical strength and able to withstand high temperature and stress in challenging environments.

Sintered Felt Benefits

Extended Lifespan

Filson sintered felt utilizes quality metal as base materials, which provides two or three times longer service life than conventional types. Also, it is cleanable and reusable.

Depth Filtration

Filson sintered felt has characteristics like fine accuracy, larger surface area and high porosity, hence it achieves high filtration efficiency and depth particles capture.

Robust Structure

After laminating and high-temperature sintering processes, Filson sintered felt has a multi-layer, compact and strong structure to withstand high impact and pressure.

Flexible Choices

From materials to shapes, from dimensions to specific needs, Filson sintered felt can be created based on your requirements.

Sintered Felt Specific Features

  • Uniform pore size distribution with high porosity
  • Larger surface area ensures exceptional dirt holding capacity
  • Available for clean regeneration and reused for many times
  • Wider micron rating ranging from 1 to 100 micron
  • OEM service provides customized shapes, sizes or materials
  • Stable form thanks to fully metal construction
  • Easy to process, shape and weld
  • Long replacement cycle reduces the cost of maintain
  • Superior resistance to high temperature, corrosion and pressure
  • Wide applicability for various industries and fields
  • Low pressure drop and high flow rates to low energy costs
  • Fast and reliable delivery way by DHL/UPS/TNT/FedEx
  • Reliable quality in accordance with ISO certification
Sintered Felt Specific Features
Sintered Felt Main Materials

Sintered Felt Main Materials

  • Stainless steel 304, 304L, 316L
  • Inconel 600
  • Monel 400
  • Nickel 200
  • Hastelloy C-276
  • Titanium and its alloys
  • Iron and aluminum alloy
  • Other materials as customized

Why Choose Filson Sintered Felt

Sintered Felt Production
Sintered Felt Factory

Filson utilizes the most reliable and quality metal fiber and advanced sintering technology to fabricate sintered felt, hence it has high strength and three-dimensional reticulated porous structure, which overcomes the shortages of blocking and damage.

All Filson sintered felts are manufactured under strict inspection and tested under ISO guidelines, like bubble point tests, air permeability test. Therefore, it has reliable and durable performance to be used for many fields and industries.

As an OEM company, Filson offers diverse sintered felt according to your requirements, including pleated types, cartridge, disc, etc. The most strong advantage of Filson lies in sintering technology, backed by two decades experience, we have confidence to offer the best for our customers.

If you are interested in Filson sintered felt or want to learn more details, please give us a call at +86-157 3695 8886 or send us an email at

Specifications of Sintered Felt
  • Raw material: stainless steel 304/316L, titanium, nickel, FecRaL, etc.
  • Filtration rating: 1 – 300 micron
  • Filter shape: pleated, cartridge, disc, sheet, tube, etc.
  • Standard size: 500 x 1000mm, 600 x 1000mm, 600 x 1200mm, 1000 x 1000mm, 1000 x 1200mm, 1000 x 1480mm, 1180 x 1450mm, 1180 x 1500mm, etc.
  • Thickness: 0.3 – 1.2 mm
  • Porosity: 30% – 75%
  • Layers: 1 – 6 layers
  • Color: metallic, silver
  • Differential pressure: 361.5 psi
  • Working temperature: up to 1000°C
  • Clean method: chemical cleaning, high-temperature calcination, ultrasonic cleaning
  • Standards: ISO 4003, ISO 4022, ISO 4572
Applications of Sintered Felt
  • Purification of polymer filtration and polyester melt
  • Pre-filtration of ultrafilter
  • Filtration of the refining process
  • Electronic high-temperature gas dust removal
  • Liquid purification of pharmaceutical, petroleum, biology and beverage industries
  • Carrier of vacuum pump protection filter, filter membrane support
  • Airbags of cars, fuel filtration of aircraft and ships
  • Hydraulic system filtration
  • Purification and filtering of food and beverage
  • Filtration of viscose rayon
  • HEPA and ULPA filters
  • Support for filter media and carrier for catalyst
  • Polymer filtering
Sintered Felt Manufacturer
Filson - Higher Felt to Satisfy What You Need

Filson has two decades’ experience in manufacturing and supplying sintered felt, we offer high-quality products at the most competitive price to meet most of your requirements.

Sintered Felt FAQ Guide

How Does a Sintered Metal Fiber Work in Filtration?

How Does a Sintered Metal Fiber Work in Filtration

When fluid or gas passes through the sintered felt, it blocks and retains contaminants to prevent them entering the system. Other methods like inertial impaction, interception, diffusion, and electrostatic forces.

How to Clean and Maintain Sintered Felt?

How to Clean and Maintain Sintered Felt

Sintered Felt can be cleaned and maintained by various methods, such as backwashing, ultrasonic cleaning, chemical cleaning, and high-temperature cleaning. The appropriate method depends on the type of contaminants and the nature of the material. It is recommended to follow the manufacturer’s instructions for cleaning and maintenance to ensure optimal performance and service life of the Sintered Felt.

How to Select the Appropriate Sintered Felt for a Specific Application?

How to Select the Appropriate Sintered Felt for a Specific Application

The selection of Sintered Felt depends on various factors, such as the nature of the fluid or gas to be filtered or separated, the operating temperature and pressure, the required filtration efficiency, the flow rate, and the chemical compatibility with the material. It is recommended to consult with Filson experience sales and staffs to determine the most suitable Sintered Felt for a specific application.

How is Sintered Felt Different from Other Filtration Media, Such As Filter Paper or Ceramic Membranes?

Sintered Felt has several advantages over other filtration media, such as higher porosity, better mechanical strength, wider temperature and pressure range, and longer service life. It also has a more uniform and controllable pore size distribution, which allows for more precise and efficient filtration. Compared to filter paper, Sintered Felt is more resistant to chemical corrosion and physical wear and tear. Compared to ceramic membranes, Sintered Felt is more flexible and easier to shape and customize.

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