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Introduce to Filter Paper Slitting Machine

2026-01-26

The filter paper slitting machine for PU car Air Filterproduction line is a core specialized piece of machine at the front end of the automotive air filter PU composite production line. It is specifically designed for automotive air filter production processes. Its core function is to precisely slit large rolls of industrial-grade air filter paper into narrow rolls of equal width and fixed length according to the size specifications of air filters for different car models. The slit filter paper can be directly conveyed to subsequent processes such as PU foaming, skeleton bonding, and filter element forming. It is a key supporting equipment to ensure continuous and standardized production of air filter PU lines.

 

This machine is adapted to the high stiffness, breathability, and tensile strength of automotive air filter paper. Addressing the stringent requirements of PU composite processes for filter paper dimensional accuracy and edge quality, it integrates core functions such as high-precision deviation correction, constant tension control, CNC width-fixed slitting, and dust-free winding. It effectively avoids problems such as wrinkling, stretching, edge burrs, and dimensional deviations during slitting, ensuring consistent filter paper width, neat edges, and precise length after slitting. This improves the sealing performance of subsequent PU foam bonding and the overall consistency of the air filter product from the source.

 

In terms of structure and operation, the equipment adopts a modular design, mainly composed of six core parts: unwinding unit, guiding and correction unit, tension adjustment unit, CNC slitting unit, winding unit, and electrical control system. It supports touch screen visual operation and can set slitting width, winding speed, and fixed length parameters with one click. It is compatible with Car Air Filter paper of different weights and original widths, and can quickly switch slitting specifications to adapt to the production needs of air filters of multiple car models, greatly reducing changeover time and improving the overall production efficiency of the PU line.

 

Meanwhile, the equipment has been optimized for dustproof and noise reduction design in the workshop production environment. The slitting blades are made of wear-resistant alloy material, which supports quick replacement and precise adjustment. The winding unit is equipped with an automatic edge trimming device to ensure the flatness and compactness of the rolled filter paper, which facilitates the feeding and conveying of subsequent processes. It is widely used in the PU composite production line of various car air filter professional manufacturers and is an essential piece of equipment for realizing the large-scale and standardized production of car air filters.