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Car Air Filter Production Process

Home Typical ProcessCar Air Filter Production Process

Providing Full-Process Technical Guidance For Air Filter Production Line

As a part of the automotive parts industry, the market for car air filters has been growing steadily with the increasing global car ownership, leading to a rising demand year by year. Accompanying the development of car air filters, PLM Filter has been deeply involved in the field of car air filter materials and accessories for many years. With rich practical experience, outstanding technical strength, and market insight, PLM Filter has integrated multiple cutting-edge technologies in the field of car air filter materials and accessories. The company is committed to creating an efficient, eco-friendly, and sustainable supply chain for car air filters, bringing innovative development to the industry.

In addition to filter materials and accessories, PLM Filter also offers advantageous products such as paper pleating machines, cutting machines, hot melt molding machines, and frame trimming machines. Not only has it significantly improved production efficiency, but it has also reduced production costs, creating tremendous value for customers.

Product Recommendation Principles

Recommendation for OEM Products

Recommendation for Aftermarket

Recommendation for Different Regions

Recommendation for Different Working Environments

PU Air Filter Production Line

01. Preparation

02. Pleating

03. Cutting

04. Frame Molding

05. Gluing & Assembly

06. Printing

Step 1: Preparation

Prepare the air filter paper in rolls.

Air filter paper recommendation: For car air filters, it is generally recommended to use acrylic impregnated filter paper (uncured filter paper), which is economical and efficient. It is fully adhesive paper with a filtration grade of F8. For example, LM135-250AC, this air filter paper is sufficient to meet the functional requirements of most car air filters.

Air Filter Paper

Step 2: Pleating

Pleat the air filter paper to increase the filtering space and support strength.

The pleating machine is pleating the air filter paper

Step 3: Cutting

This step mainly involves cutting the pleated air filter paper to meet specific size and shape requirements.

The cutting machine cuts air filter paper.

Step 4: PU Frame Molding

Use PU adhesive as raw material to form a PU frame, sealing the air filter element.

PU adhesive recommendation: Use 3:1 PU adhesive with excellent cost performance.

Plastic mold recommendation: Customize according to the original specification.

PU Adhesive Plastic Mold

Step 5: Applying Centerline Glue & Assembly

Assemble the PU frame with the pleated air filter element to preliminarily form the air filter. Use hot melt adhesive to apply centerline glue to the assembled air filter to fix it. Then let it stand to allow the hot melt adhesive to cure.

Recommended hot melt adhesive: EVA hot melt adhesive, moderately priced with high cost performance.

Hot Melt Adhesive

Glue applicator applying centerline glue

Step 6: Printing

Print the code on the processed air filter to ensure product traceability.

PP Air Filter Production Line

01. Preparation

02. Pleating

03. Assembly

Step 1: Non-Woven Fabric Preparation

Prepare non-woven fabric in rolls.

Non-woven fabric recommendation: Use 250 g/m² PET needle-punched non-woven fabric, filtration grade F8, F9, featuring high temperature resistance, water repellency, and high strength, and can meet performance requirements in most working environments.

Non-Woven Fabric

Step 2: Non-Woven Fabric Pleating

Pleat the non-woven fabric to increase the filtration space and support strength of the air filter paper.

A non-woven fabric air filter with a black casing

Step 3: Assembly

Assemble the PP casing with the pleated non-woven fabric filter element to form the PP air filter.

Toyota Air Filter Production Line

01. Preparation

02. Pleating

03. Molding

04. Cutting

05. Printing

06. Transportation

Step 1: Non-Woven Fabric Preparation

Prepare non-woven fabric in rolls.

Toyota non-woven fabric recommendation: Toyota air filter non-woven fabric is a type of thermal bonded fabric, also known as eco-friendly cotton. It is a polyester fiber non-woven fabric that is not only waterproof and breathable but also has excellent insulation and sound absorption properties. There are three types available: 280 g/m², 300 g/m², and 320 g/m².

Non-Woven Fabric

Step 2: Non-Woven Fabric Filter Pleating

Pleat the non-woven fabric to increase the filtration space and support strength of the air filter paper.

Non-woven fabric of air filter being pleated by machine

Step 3: Thermal Bonding & Molding

Use a filter element thermal bonding machine, heat the ends of the filter element with a heating head to melt the surface, then quickly bond the heated surfaces together to form a solid unit.

Filter element thermal bonding machine performs thermal fusion on the filter element.

Step 4: Cutting

Trim the molded filter element with a cutting machine.

Trim the filter element with a cutting machine.

Step 5: Printing

Print the production date, model, and other information on the filter element.

Print on the filter element with a printing machine.

Step 6: Transportation

Use a conveyor belt machine to transport the finished filter elements to the designated location.

Air filter element against a gray background

Technical Guidance for The Production Process

We not only provide various filter materials and accessories for car air filters but also offer comprehensive technical support to our customers. The car air filter production line may face various challenges during actual operation, including the selection of raw materials, the debugging, maintenance, and optimization of mechanical equipment and the production line. Our technical team possesses comprehensive expertise and can effectively solve various problems in the production line, ensuring the smooth progress of the production process.

We are always committed to helping customers achieve continuous business growth and development. This is not only our core values but also the principle and belief we always adhere to.

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The production process and our mascot heroman

Car Air Filter Application

Air filters are widely used in cars, SUVs, and other vehicles for engine air filtration. Due to the varying requirements of different vehicle models, there are numerous types of air filters available in the market. Facing this complex and diverse market environment, we leverage our extensive industry experience and expertise to provide comprehensive raw material supply to OEM manufacturers and aftermarket air filter companies. Our products have been applied to various vehicle models as the business of major air filter manufacturers expands, and have gained high recognition in the market.

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