Created on 2025.12.31

Core Accessories Recommendation and Usage Tips for High-Efficiency Slitting Systems

In modern industrial manufacturing, whether it is flexible packaging, EV battery separators, or precision metal foils, the performance of the slitting system directly impacts final product quality and operational efficiency. With the advent of the Industry 4.0 era, selecting high-standard accessories and mastering scientific maintenance techniques are essential to ensuring high-precision and high-speed operation.

Core Accessories Recommendation & Analysis

1. High-Performance Slitting Knives

Analysis: Knives are the "frontline" components in direct contact with materials. For highly abrasive or ultra-thin substrates, Tungsten Carbide blades are recommended. Tungsten carbide, with its extreme hardness and wear resistance, maintains edge sharpness longer, significantly reducing downtime for blade changes.

Usage Tip: Strictly match the blade overlap and pressure during use to prevent heat-induced melting or burrs on material edges.

2.Slitting & Winding Shafts: Air Shafts / Differential Slip Shafts

Analysis: Air Shafts are ideal for bulk winding/unwinding of uniform-thickness materials. Conversely, Differential Slip Shafts are the core of high-precision slitting; their unique slip ring structure automatically compensates for tension variances caused by material thickness inconsistencies, ensuring uniform tightness across all rolls.

Usage Tip: For the EV battery or film industries, ball-type differential shafts are recommended to achieve lower starting torque and more precise tension distribution.

3. Tension Control Systems

Analysis: Tension control acts as the "central nervous system" of the slitting system. A closed-loop system typically includes high-precision Load Cells and vector inverters or servo systems. It monitors and automatically adjusts tension fluctuations throughout the process from unwinding to rewinding.

Usage Tip: It is recommended to calibrate load cells regularly and establish dynamic PID parameters based on diameter changes to handle inertial impacts during high-speed starts and stops.

4. Precision Auxiliary Components

Analysis: This category includes Web Guiding Systems (EPC/LPC), anti-static bars, and trim suction units. Web guiding ensures the material stays on its intended path, while anti-static bars prevent stacking issues caused by electrostatic attraction when slitting highly insulative materials like plastic films.

Usage Tip: Keep the guiding system sensors (ultrasonic or infrared) clean to prevent dust from interfering with signal feedback.

Conclusion

An efficient slitting process is the perfect synergy of core accessories and precision control. By selecting high-quality knives, shafts, and tension systems—combined with regular physical calibration and cleaning—enterprises can not only improve product aesthetics but also significantly reduce material waste during high-intensity production.