Application Cases
Optimized Knives for Recycled Corrugated Board: High Abrasion & Contaminant Conditions
Recycled corrugated board is widely used in packaging production, but its high abrasive content and occasional contaminants bring extra challenges to slitting operations. Faster knife wear, unstable cutting quality and unplanned downtime are common issues on processing lines of recycled corrugated board.
Choosing the right knife configuration is the most direct way to handle harsh recycled corrugated board conditions without changing your existing line setup.
Wear-Resistant Tungsten Carbide Substrate
Standard carbide grades wear down quickly while cutting highly abrasive recycled board. Upgrading the material to Shen Gong's special carbide grades which is more wear-resistant, extends edge life significantly, reduces grinding frequency and lowers long-term knife consumption.
Optimized Edge Angle Design
An overly narrow edge angle wears fast under abrasive conditions, while an overly wide angle causes poor cutting quality. A balanced bevel angle matched to recycled corrugated board weight delivers both good wear resistance and clean, consistent cutting edges.
Protective Surface Coatings
For high-volume recycled corrugated board production, premium surface coatings create an extra protective layer on the cutting edge. They reduce abrasive wear and lower material adhesion, extending total knife service life noticeably.
Practical On-Site Tips
Inspect edges regularly to spot contaminant impact damage early.
Clean knife holder surfaces before installation to avoid uneven clamping.
Match grinding parameters to your upgraded carbide grade for best results.
Targeted knife optimization helps recycled corrugated board lines achieve stable cutting quality and lower total operating costs.
Shen Gong has been manufacturing high-precision tungsten carbide circular slitting knives for corrugated board over 28 years. We have rich industry experience and a large portfolio of application cases. We provide customized knife solutions for different production conditions.
Contact our team for more support.