Cr12MoV Steel Slotter Cutting Blade HRC 58-62 Precision Ground to 0.02 mm for Corrugated Carton Slotter Machine

The ZHIJING Cr12MoV Slotter Cutting Blade is a replacement cutting part engineered specifically for corrugated carton slotter machines that process demanding board grades. While ultra-hard blades fail by chipping when they meet recycled fiber, high edge crush test board, or misaligned seams, this blade is manufactured from Cr12MoV cold work die steel, a material prized in tool making for its outstanding combination of wear resistance and impact toughness. The result is a slotting knife that absorbs the shock loads of high-speed rotary and flatbed slotters without cracking, yet keeps a stable cutting geometry through long production shifts. Every blade is forged, spheroidize annealed, and hardened through a controlled double tempering cycle so the steel structure stays uniform from edge to mounting hole.

Each Cr12MoV slotter blade is finish ground on advanced surface grinders to hold flatness and parallelism within 0.02 mm, which keeps the cutting line consistent across the full board width. Clean, burr-free slots mean less dust, fewer jammed blank separations, and smoother downstream folding and gluing. For box plants that run high ECT recycled board or switch grades frequently, this blade offers a practical balance of service life and toughness at a very competitive cost per running hour.

• Impact-Resistant Cr12MoV Steel: The die steel grade absorbs shock and resists chipping, making it ideal for recycled and high edge crush test corrugated board that punishes brittle edges.
• Balanced HRC 58-62 Hardness: Deliberately tempered to a toughness-oriented hardness window, the blade keeps its edge while surviving vibration, board splice bumps, and uneven feed conditions.
• Uniform Carbide Structure: Spheroidize annealing followed by double tempering produces a fine, evenly distributed carbide structure that prevents premature localized wear.
• Precision Ground to 0.02 mm: Flatness, parallelism and edge straightness are controlled within 0.02 mm, delivering consistent slot depth and width along the entire working length.
• Clean Cutting Geometry: The correctly angled cutting edge produces burr-free slots with minimal dust, protecting downstream printing, folding and gluing stations.
• Full Customization Service: Overall length, width, thickness, mounting slots and hole patterns are manufactured precisely to your drawings, samples or worn original parts.

This Cr12MoV slotter blade is a direct replacement part for slotting stations on flexo printer slotters, rotary slotter machines, folder gluers and flatbed slotter units used in corrugated box production lines. It performs reliably on 3-ply, 5-ply and 7-ply board, and it is especially recommended for plants running recycled fiber board with high edge crush values, where harder blades tend to chip. Besides slotting, the same material and grinding route can be supplied for creaser knives, trim knives and cutoff knives, allowing a box plant to standardize one tough, economical steel grade across several wear parts.

Every blade is rust-protected with anti-corrosion oil, wrapped with edge protectors, and packed in strong carton boxes or plywood cases according to size and quantity, so the precision-ground edges arrive in perfect condition. ZHIJING operates under an ISO9001 quality system: incoming steel is verified by spectrometer and hardness testing, each production batch is checked for hardness and geometry, and a final inspection is performed before shipment. Pre-production samples and material certificates are available on request. We welcome OEM and ODM orders, and our engineers are ready to recommend the correct blade specification once you share your board grades, machine model and slot dimensions.