Distinguish Between Sintered Felt Filter Cartridges & Sintered Mesh Filter Cartridges

In an ever-evolving industrial environment, advances in filtration technology are providing more choices. When it comes to filtration solutions, metal sintered mesh filter cartridges and sintered felt filter cartridges are popular considerations for engineers and clients. Both are highly efficient filtration materials based on sintering technology, but differ in application and performance.

The purpose of this article is to provide you with an in-depth understanding to help you make an informed choice between metal sintered felt filter cartridges and sintered mesh filter cartridges.

Sintered Felt Filter Cartridges

Sintered felt filter cartridges consist of metal sintered felt as the primary filter material. The pleated design further provides a large filtration area and increases the dirt-holding capacity. They are extremely porous, evenly distributed and can be welded and folded into different shapes. We offer three types of sintered felt filter cartridges: without steel wire twined, with steel wire twined and with square openings at outer layer to match different filtration needs.

Sintered felt filter cartridges without steel wire twined

Measure sintered felt filter cartridge width with steel wire twined with vernier calipers

Sintered felt filter cartridges with steel wire twined

Several sintered felt filter cartridges with square openings welded at outer layer placed together

Sintered felt filter cartridges with square openings at outer layer

Specification

Material: 316L
Filtration accuracy: 1–80 μm
Connection: Threaded, double-opening, single-opening, tie rod, plug-in, flange, quick-clip joints
Structure: Inner perforated skeleton, woven wire mesh and sintered felt composite filter layer, outer perforated skeleton/metal binding wire
Inner perforated skeleton thickness: 1.0–6.0 mm, commonly used thickness: 2.0 mm
Filter media size: 500 mm × 1,000 mm, 600 mm × 1,000 mm, 600 mm × 1,200 mm

Outer Layer Woven Mesh Specification
Mesh Count/Wire Diameter (mesh/mm)	40/0.18	40/0.25	60/0.16
Thickness (mm)	0.85–0.9	1.15–1.3	0.7

Feature

Deep filtration, large dirt-holding capacity, high filtration precision, slow pressure rise
High porosity and excellent permeability, small pressure loss, and large flow rate
Corrosion resistance, high temperature resistance, acid, and alkali resistance, can be used for a long time in 450 °C environment
Can be customized according to user requirements, reinforced, thickened, with protective mesh and other specifications
Three-dimensional mesh, porous structure, uniform pore size distribution
Can continuously maintain the filtering effect of the filter cloth

Application

Polymer filtration
Petrochemical, high temperature gas dust removal, oil refining process filtration
Felt gel filtration, ultrafiltration prefiltration
Vacuum pump protection filter
Hydraulic system filtration

Sintered Mesh Filter Cartridge

Sintered mesh filter cartridge filter material: multi-layer metal sintered mesh is a new type of filtration material made of multi-layer metal wire mesh through special laminated pressing and vacuum sintering. It can reasonably match and design the gap size, permeability, and strength characteristics of the material, so that it has excellent filtration precision, filtration impedance, mechanical strength, abrasion resistance, heat resistance, and processability, and its comprehensive performance is significantly better than other types of filtration materials.

We provide a general sintered mesh filter element and an internal folding sintered mesh filter element. General sintered wire mesh can be used as filter material directly. Nevertheless, the existing technology, to increase the filtration area and at the same time with the characteristics of sintered wire mesh, the sintered wire mesh will be folded and processed.

Sintered mesh filter cartridge placed on plant floor with a view of outside opening

Sintered mesh filter cartridge opening

Sintered mesh filter cartridge placed on plant floor with a view of inside opening

Sintered mesh filter cartridge opening

Internal pleated sintered mesh filter cartridge

Specification

Material: SUS316L
Filter size: 1,200 mm × 1,000 mm × 1.7 mm
Filtration accuracy: 1–150 μm
Connection: Quick-clip connector, threaded connection, flange type, tie rod connection, special customized interface

Feature

Standard five-layer wire mesh consists of a protective layer, a precision control layer, a dispersion layer, and a multi-layer reinforcement layer.
Five-layer wire mesh is sintered to provide high mechanical and compressive strength.
Uniform surface filtration performance for particle sizes from 2 μm to 200 μm.
Durable for continuous filtration from -200 °C to +650 °C.
Simple cleaning due to surface filtration structure with excellent countercurrent cleaning effect.

Application

Precision filtration of various hydraulic oil lubricants in the machinery industry.
Filtration and purification of various polymers melt in the chemical fiber and film industry.
Filtration of various high temperature and corrosive liquids in the petrochemical industry.
Filtration, washing, and drying of materials in the pharmaceutical industry.
Fluidized plates in the steel industry.
Distributor in explosion-proof electrical appliances.

Sintered Felt & Sintered Mesh Filter Cartridge Differences
Differences	Sintered Mesh Filter Cartridge	Sintered Felt Filter Cartridge
Materials	Stainless steel metal woven mesh	Metal fibers with different diameters
Processing	Produced at 1,260 °C	Produced at 1,180 °C
Structure	Multi-layer wire mesh composite, with uniform filtration pore size	Multi-layer gradient pore size layer, resulting in greater dirt-holding capacity
Blind Via Hole Rate	Basically no holes	More or less blind via holes
Filtration Accuracy	1–150 μm	1–80 μm
Cleaning Cycles	Both are reusable materials that can be cleaned and reused, but sintered felts have a longer cleaning cycle due to their greater capacity to hold dirt.