Full-Auto Hepa Filter Mini Pleating Production Line

As a professional manufacturer in China, Pulan provides high-performance Full-Auto Hepa Filter Mini Pleating Production Line with servo drive technology. The pleat height can be adjusted steplessly without replacing rollers. Equipped with imported slitting knives, independent solenoid valve adhesive control, and stable conveying system, the machine ensures accurate product dimensions and consistent pleating quality.
As an experienced filter pleating machine manufacturer, we provide factory direct prices, customization services, and bulk order solutions.

What is Full-Auto Hepa Filter Mini Pleating Production Line?

Full-Auto Hepa Filter Mini Pleating Production Line is an automatic production line designed for pleating and adhesive coating of filter materials such as fiberglass media.
The machine uses servo-controlled creasing rollers to create precise folding lines. The pleat height is controlled by adjusting the speed ratio between the traction roller and creasing roller, allowing stepless adjustment without changing rollers.
The complete line consists of:
Automatic loading system
Constant tension control system
Creasing roller system
Slitting system
Adhesive coating system
Cooling system
Pleating forming system
Conveying system
Hot melt adhesive unit
It is widely used for mass production of separatorless HEPA/ULPA filter elements.

Product Applications

The Full-Auto Hepa Filter Mini Pleating Production Line is mainly used for:
Fiberglass filter media for separatorless HEPA filters
Synthetic fiber filter materials suitable for mini-pleat filter structures

Main Components

1. Automatic Loading System
Includes:
Air expansion shaft
Swing arm
Foot switch
The pneumatic loading mechanism reduces manual operation and improves production efficiency.
2. Constant Tension Control System
Consists of:
Magnetic powder brake
Automatic tension controller
It maintains stable material tension during feeding, preventing filter media from loosening, falling, or breaking.
3. Creasing Roller System
Upper and lower creasing rollers press folding lines onto the filter material.
The pleat height is controlled by servo motor speed ratio adjustment.
4. Slitting System
Equipped with imported slitting knives.
The wide filter material can be divided into multiple sections while keeping each section connected, ensuring smooth edges and accurate sizing.
5. Adhesive Coating System
Uses hot melt adhesive coating technology.
Each adhesive outlet is controlled by an independent solenoid valve, allowing precise glue output adjustment.
6. Cooling System
The cooling fan accelerates hot melt adhesive solidification and improves product stability.
7. Pleating Forming System
Upper and lower pleating plates form the filter material into wave-shaped pleats.
The forming position can be adjusted according to different pleat heights.
8. Conveying System
A long conveyor belt allows sufficient cooling and adhesive curing time before cutting or further processing.
9. Hot Melt Adhesive Machine
Provides heating and continuous adhesive supply for the production process.

Working Principle

The machine uses creasing rollers to create folding lines on the filter media.
The servo system controls the speed ratio between the traction roller and creasing roller, achieving precise and stepless pleat height adjustment.
The magnetic powder brake and tension controller maintain constant material tension.
Hot melt adhesive is applied through independent solenoid valves, then cooled by fans.
Finally, the pleating mechanism forms the filter media into wave-shaped folds, and the long conveyor ensures complete adhesive curing.

Production Process

1. Material Loading
Install the filter media roll onto the air expansion shaft.
Press the foot switch, and the pneumatic swing arm automatically lifts the roll into position.
2. Tension Setting
Set the tension value according to the strength of the filter material.
3. Feeding and Creasing
The material passes through tension rollers and enters the creasing rollers.
The servo system automatically controls the speed ratio according to the required pleat height.
4. Slitting
Adjust the slitting knife distance according to product width.
The material is slit into multiple sections without complete separation.
5. Adhesive Coating
The filter media enters the adhesive coating unit.
Each glue outlet is independently controlled by solenoid valves for accurate glue application.
6. Cooling and Solidification
The cooling fan accelerates adhesive curing.
7. Pleating Forming
The pleating unit forms the material into wave-shaped pleats.
The pleat forming distance can be adjusted according to product requirements.
8. Output
Finished pleated filter media is transferred through the conveyor system for further cutting or assembly.

Key Features

1. Servo Drive, Stepless Pleat Height Adjustment
The servo-controlled system adjusts the speed ratio between rollers digitally.
No roller replacement is required when changing pleat height, improving production flexibility.
2. Independent Solenoid Valve Adhesive Control
Each glue outlet has independent control.
The system provides accurate adhesive quantity adjustment and reduces glue leakage or uneven coating.
3. Imported Slitting Knives
High-quality imported blades ensure:
Smooth cutting edges
No burrs
Accurate product dimensions
4. Automatic Constant Tension Control
The magnetic powder brake and tension controller maintain stable material feeding.
The filter media is protected from excessive tension and breakage.
5. Automatic Loading System
The pneumatic loading structure reduces labor intensity and improves working efficiency.
6. Cooling Fan + Long Conveyor System
The cooling system accelerates hot melt adhesive curing.
The long conveyor ensures complete bonding before cutting.
7. Adjustable Pleating Forming Unit
The upper and lower pleating plates can be adjusted through the control system to meet different pleat specifications.
8. Bilingual Touch Screen Control
The system supports Chinese and English interfaces.
Operators can easily set:
Speed parameters
Pleat height
Adhesive settings
Production parameters
and store production recipes.

Technical Parameters

FAQ

Q1: What materials can this Full-Auto Hepa Filter Mini Pleating Production Line process?
It is suitable for fiberglass filter media used in separatorless HEPA filters and other synthetic filter materials suitable for mini-pleat structures.

Q2: What systems are included in the production line?
The machine includes automatic loading, tension control, creasing, slitting, adhesive coating, cooling, pleating forming, conveying, and hot melt adhesive systems.

Q3: Does changing pleat height require replacing rollers?
No. The pleat height is adjusted by changing the servo motor speed ratio between the traction roller and creasing roller, allowing stepless adjustment without roller replacement.

Q4: How does the machine ensure uniform adhesive coating?
Each adhesive outlet is controlled independently by a solenoid valve, allowing precise glue quantity control.

Q5: Why does filter material break during feeding?
Possible reasons:
Excessive brake tension → reduce tension setting
Poor material quality → replace filter media
The recommended tension value is around 0.5 N·m.

Q6: How to solve uneven pleat edges?
Usually caused by uneven alignment between upper and lower creasing rollers.
Adjust the gear clearance between the rollers to correct the problem.

Q7: What safety protections does the machine have?
The machine is equipped with:
Emergency stop button
Safety door interlock
Ground protection
Maintenance must be performed after power-off.

Purchasing Information

Factory direct supply from Pulan
Customized pleat height, width, and production requirements accepted
Free sample testing available (send your filter media for trial production)
Complete English and Chinese manuals provided
Long-term supply of spare parts including slitting knives, heating components, and pneumatic parts