China G2 Metal Mesh Pre-Air Filter - High Efficiency Suppliers and Factory Direct Products
Application Area
Metal Mesh Pre-filters are widely used in Primary Filtration To Remove Moisture, Oil Residue Or Environments.
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:
Plain Weave Aluminum Mesh
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.
Twill Weave / Dense Weave Aluminum Mesh
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.
Multi-layer Composite Aluminum Mesh
Description: This is the core technology of all-aluminum mesh filters. It involves layering, or pressing together aluminum meshes of different mesh counts (i.e., pore sizes).
Structure: Typically a sandwich structure of "support layer + transition layer + fine filtration layer."
Support Layer: Located on the airflow inlet side, made of aluminum mesh with a smaller mesh count (larger pores) and thicker wire diameter, primarily serving as pre-filtration and supporting the overall structure.
Fine Filtration Layer: Located on the airflow outlet side, made of aluminum mesh with a larger mesh count (very small pores), responsible for capturing the finest particles.
Transition Layer: Positioned between the two, with gradually varying mesh counts to achieve gradient filtration, effectively extending the filter's service life.
Features: Enables depth filtration, with extremely high dust-holding capacity and high filtration efficiency.
Frame Materials
To maintain the structural strength of the filter, its outer frame is usually also made of aluminum:
Aluminum Profile Frame: Frames formed through an extrusion process, offering high strength, light weight, resistance to rust and deformation, ensuring stability even under high differential pressure.
Aluminum Alloy Sheet: Sometimes, aluminum alloy sheets are used to create frames through bending processes.
The Efficiency of Metal Mesh Pre Filter
The efficiency of currently available primary efficiency filters ranges from 40% to 65%, and they can be selected based on specific requirements. The rational selection of filter efficiency and face velocity contributes to comprehensive economic benefits.
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. The resistance of a filter increases with higher airflow rates. By increasing the surface area of the filter media, the relative velocity of air passing through the filter can be reduced, thereby decreasing the resistance.
Wind Speed Relationship Diagram
Product Parameters
They are widely used in primary filtration to remove moisture, oil residue, or operate in specific environments.
No, 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.
It uses a sandwich structure featuring a support layer, a transition layer, and a fine filtration layer. This enables gradient depth filtration with extremely high dust-holding capacity and high efficiency.
The outer frames are typically made of aluminum, utilizing either extruded aluminum profile frames for high strength and rust resistance, or bent aluminum alloy sheets.
The efficiency of currently available primary efficiency metal mesh filters ranges from 40% to 65%, depending on specific requirement selections.
The filter must be discarded or replaced when dust accumulation causes the resistance to reach an unreasonable level, or when there is a risk of previously captured dust becoming dislodged and re-entering the airflow.