Search

AR
RU
ES

Primary, Medium & High-Efficiency Filters Production Process

Home Typical ProcessPrimary, Medium & High-Efficiency Filters Production Process

One-Stop Solution for Filter Materials & Accessories for Primary, Medium, and High-Efficiency Filters

With the global increasing attention to environmental protection and energy consumption issues, HVAC systems, as important energy-consuming equipment in the construction field, have increasingly higher energy efficiency requirements. Primary, medium, and high-efficiency filters are the core components of HVAC systems and are the most important standards for measuring the filtration efficiency and energy consumption of HVAC systems.

PLM Filter has been deeply engaged in the field of filter materials and accessories for HVAC filters, possessing rich practical experience and technical strength. We have gained a good reputation in the industry with our excellent filter material and accessory supply solutions. Many well-known companies have successfully used our complete filter material and accessory solutions and achieved significant improvements in production efficiency and product quality, gaining a widespread market recognition. In addition to filter materials and accessories, PLM Filter can also provide superior products like glue dispensers. It not only significantly improves customer production efficiency but also reduces 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

Production Process & Product Recommendations

01. Preparation

02. Support Grid

03. Assembly

04. Pleating

05. Cutting

06. Frame Glue

07. Line Glue

Step 1: Filter Fabric Preparation

Prepare the filter fabric materials used for making primary, medium, and high-efficiency air filters. Depending on the requirements and usage, filter fabric can be divided into pre filter fabric, medium-efficiency filter fabric, high-efficiency & ultra-high-efficiency filter fabric, etc.

Filter fabric recommendation: We will recommend different filtration grades, different surface treatments, and different materials of filter fabric based on your specific situation.

Primary Filter Fabric Medium Efficiency Filter Fabric Efficiency Glass Fiber Filter Paper High-Efficiency & Ultra-High-Efficiency Glass Fiber Filter Paper

Step 2: HEPA Filter Support Grid

Prepare the HEPA filter support grid, to provide support and protection for the filter material.

HEPA filter support grid recommendation: expanded metal mesh, aluminum plate mesh, PVC coated wire mesh, fine mesh, etc. Recommendations are mainly based on your needs and specific working environment. If needed, you can directly contact our sales staff for consultation.

Contact Us

HEPA filter support grid on a gray background

Step 3: Filter Material Assembly

Assemble the filter fabric and the filter support grid together.

Primary, medium, and high-efficiency filter material assembly

Step 4: Filter Material Pleating

Pleat the filter material, thus capturing more dust and particulates while reducing airflow resistance. In addition, the pleated structure can also enhance the mechanical strength of the filter element, making it more capable of withstanding vibrations and pressure changes in the working environment.

Primary, medium, and high-efficiency filter material pleating

Step 5: Cutting

Cut the pleated filter fabric to meet the size and shape requirements of specific filter elements, to fit different models and brands of air filters.

A high-efficiency filter on a white background

Step 6: Spraying Frame Glue

Use a fully automatic gluing machine to apply glue between the frame and the filter media, forming adhesion and sealing.

Frame recommendation: Frames are divided into metal frames, paper frames, and plastic frames. We usually recommend cost-effective paper frames for primary and medium-efficiency filters; while metal frames are suitable for filters of any filter grade; plastic frames are mainly suitable for medium, high, and ultra-high-efficiency filters.

Two-component adhesive recommendation: Two-component PU adhesive is more suitable for high viscosity, high temperature, and high strength bonding. It is moderately priced, making it the most cost-effective.

Plastic Frame Metal Frame Paper Frame Two-Component Filter Adhesive

Primary, medium, and high-efficiency filter gluing application

Step 7: Spraying Line Glue

In the manufacturing process, the filter material needs to be securely adhered to the filter frame, which requires the use of a specific adhesive—namely, line glue. A dispensing machine is used to spray line glue inside the filter to fix the filter material to the frame.

Hot melt glue recommendations: There are three material options – EVA, PO, and PA. Among them, EVA offers a higher cost-performance ratio, PO hot melt glue has better moisture resistance, and PA hot melt glue has superior high-temperature resistance. Selection can be made based on actual conditions..

Hot Melt Adhesive

Technical Guidance for The Production Process

In the production process of primary, medium, and high-efficiency filters, if the filter material is not uniformly pleated, it will affect the filtration area and filtration efficiency, thereby impacting product performance; If the bonding process between the filter material and the frame is not properly controlled, uneven adhesion may occur, leading to an unstable filter structure or gaps; If the filter's edge sealing process is not tight, it may lead to air leakage, affecting filtration efficiency and sealing performance. PLM Filter has a professional technical team to solve various problems and difficulties that may arise during the production process for customers. We have been engaged in the field of air filter materials and accessories for many years. As an industry expert, we have consistently worked with partners to innovate solutions and have earned market trust.

Learn More

The production process and our mascot heroman

Primary, Medium, and High-Efficiency Filters Application

Different applications (such as clean rooms, hospitals, automotive manufacturing, pharmaceuticals, food processing, households) have varying requirements for filters. Some fields require ultra-high filtration efficiency, while others focus more on durability or antibacterial properties. These diverse demands pose greater challenges to the design and material selection of filters. PLM Filter has long been focused on materials and accessories for HVAC systems and household appliances. With extensive practical experience and strong supply capabilities, we can effectively address the challenges of complex working conditions in the market. Our products are suitable for new installations or replacement of air filters and systems, and with the joint efforts of our partners, they are widely used in air filters and systems across various industries.

HVAC System Household Air Filtration

Replace primary, medium, and high-efficiency filters