G2 Metal Mesh Pre-Air Filter | China Suppliers & Factory | High Efficiency Aluminum & Stainless Steel Mesh Filter
Application Area
Filter Media Materials
Metal mesh filters do not use any filter paper or chemical fiber materials; their filtration function is entirely achieved through aluminum meshes of different structures and mesh counts. They are mainly divided into the following types:
Description: The most common weaving method, where warp and weft wires are interwoven in an over-and-under pattern, forming square openings.
Features: Stable structure, high strength, and relatively low cost.
Applications: Often used as a support layer in filters or for primary filtration where high filtration precision is not required.
Description: The warp and weft wires are interwoven at a higher density, resulting in smaller mesh openings, and the wire diameter may be thicker.
Features: Higher filtration precision than plain weave, greater dust-holding capacity, while maintaining good strength.
Applications: Serves as the main filtration layer in filters, used to capture smaller particles.
Description: The core technology of all-aluminum mesh filters — layering or pressing together aluminum meshes of different mesh counts (pore sizes).
Structure: Typically a sandwich structure of "support layer + transition layer + fine filtration layer."
Support Layer: Airflow inlet side; larger pores, thicker wire — pre-filtration and structural support.
Fine Filtration Layer: Airflow outlet side; very small pores — captures the finest particles.
Transition Layer: Between the two; gradient mesh counts for depth filtration, extending service life.
Features: Enables depth filtration with extremely high dust-holding capacity and filtration efficiency.
To maintain structural strength, the outer frame is usually also made of aluminum:
Aluminum Profile Frame: Formed through an extrusion process — high strength, light weight, rust-resistant, deformation-resistant, stable under high differential pressure.
Aluminum Alloy Sheet: Sometimes used to create frames through bending processes.

The Efficiency of Metal Mesh Pre Filter
Service Life of Filters
As dust accumulates on the filter media, the resistance increases. When the resistance reaches an unreasonable level, the filter must be discarded. Sometimes, excessive resistance can cause previously captured dust to become dislodged and re-enter the airflow; when this risk arises, the filter should also be replaced.
Wind Speed Relationship Diagram
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