High-Precision Circular Paper Cutting Blades: Clean Edges, Zero Dust
In the fast-paced paper converting and packaging industry, your circular cutting blades directly affect: Roll finish qualityProduction stabilityFinal product consistency
Dull or poorly made blades don’t cut cleanly. They tear paper, create dust, damage equipment, cause web breaks, and hurt print/packaging quality. Our slitter knives are built for high-speed, precise cutting of all paper types—from thin tissue to thick cardboard. They fix common cutting problems, last longer, and reduce downtime.
Why Our Slitter Knives Are Better Than Standard Blades
Mirror-Finish Lapping
Our blades go through special mirror polishing and lapping. Benefits include: Less frictionNo paper fibers sticking to the bladeDust-free cutting, even at max speed
Advanced Material: HSS (High-Speed Steel)
We offer high-performance HSS for different needs. It’s a high-performance alloy with tungsten, molybdenum, chromium, and vanadium, made for tough cutting conditions. Cr12: Durable, low-cost, good for daily medium-load cutting HSS (High-Speed Steel): Tough, heat-resistant, perfect for high-speed, high-demand lines
Strict Dimensional Control
Our slitter knives have tight precision: Thickness tolerance: ±0.002mmExcellent concentricityStable cutting paths, no web breaksConsistent slit widths
Core Uses & Applications
Our circular slitter knives work for many paper processing tasks: Paper & Packaging: Slit kraft paper, coated paper, newsprint, cardboard, labels, and tissue Converting & Finishing: Precise width cutting for printing, laminating, bag-making, and rewinding High-Speed Lines: Runs steadily at 300–800 m/min (needs sharpness, durability, low vibration) Specialty Uses: Thermal paper, adhesive labels, multi-layer laminated paper, and high-value printed materials
Key benefits: Sharp edge, clean cuts (no burrs), long life, less downtime, consistent precision.
Material 1: Cr12 (Alloy Tool Steel)
Cr12 is a high-carbon, high-chromium steel. It’s the low-cost, reliable choice for paper slitting.
Key Features
Hardness: HRC 58–62 (after heat treatment)
Durable: 3–5 times longer life than carbon steel (thanks to chromium carbides)
Stable: Little distortion during heat treatment (good for precision blades)
Tough enough: Works for smooth, low-impact cutting
Low cost: Cheaper than HSS or tungsten carbide
Best For
Medium-to-thick paper, cardboard, and kraft paper
Abrasive materials (coated, laminated paper)
Long production runs (prioritize durability)
Standard precision cutting (tolerance ±0.01–0.02 mm)
Material 2: High-Speed Steel (HSS / M2 / W6Mo5Cr4V2 / SKH51)
HSS is a high-performance alloy with tungsten, molybdenum, chromium, and vanadium. It’s made for tough cutting conditions.
Key Features
Hardness: HRC 60–68 (higher than Cr12)
Heat-resistant: Keeps hardness at high temps (about 500°C) from fast cutting friction
Very tough: Resists chipping (better than Cr12), even on thick/uneven paper
Sharp edge: Can be honed to a fine edge for cleaner, less dusty cuts
Best For
High-speed cutting lines (where heat builds up)
Thick, stiff, or tough cardboard
Sensitive materials (thin tissue, release paper, high-grade labels)
Tasks needing maximum toughness, edge stability, and long life
Cr12 vs. HSS: Key Differences
Hardness: Cr12 (HRC 58–62) | HSS (HRC 60–68, slightly higher)
Durability: Cr12 (excellent, high carbide) | HSS (very good, heat-resistant)
Toughness: Cr12 (good for low-impact) | HSS (excellent, resists chipping)
Heat resistance: Cr12 (moderate) | HSS (outstanding, stable at high speeds)
Edge sharpness: Cr12 (good) | HSS (superior, cleaner cuts)
Cost: Cr12 (cheaper, economical) | HSS (premium, higher performance)
Best uses: Cr12 (cardboard, coated paper, abrasive materials) | HSS (high-speed lines, thin/sensitive paper, labels, high-value printed materials)
Design & Precision Features
Our slitter knives have practical, reliable design with strict precision:
Structure: Solid circular disc with smooth flat edges (optimized for paper)
Precision: OD, ID, thickness and runout controlled tightly
Edge: Single or double bevel, sharp and precise
Heat treatment: Ensures stability, hardness and toughness
Surface: Mirror-polished to reduce friction and fiber adhesion
Selection Guide
Choose the right material based on your production needs:
Choose Cr12 if:
You cut medium-to-thick paper, cardboard or abrasive materials
You want long service life at a low cost
Your production runs at medium speed with stable loads
Choose HSS if:
You operate high-speed cutting lines (with heat buildup)
You need clean, burr-free cuts on thin or sensitive paper
You want maximum toughness and edge stability
You slit high-value materials (labels, thermal paper, printed paper)
Maximize Your Production Efficiency
Our slitter knives are built to last longer and cut cleaner. This means:
Whether you choose Cr12 or HSS, our blades keep your paper converting, packaging and printing lines running smoothly.
We manufacture high-performance Circular Knives for Paper (Material: HSS, Cr12, Tungsten Carbide, 9CrSi) engineered for slitting, rewinding, and converting applications. Our rotary blades feature a high-precision mirror finish and vacuum heat treatment (HRC 60-64) to ensure dust-free cutting and exceptional longevity. Ideal for tissue paper, corrugated cardboard, coated paper, and industrial packaging materials.
English: Circular Knives for Paper | Rotary Slitter Blades | Paper Slitting Knives
French (Français): Couteaux circulaires pour papier | Lames de refendage rotatives | Lames pour papier
Portuguese (Português): Facas circulares para papel | Lâminas rotativas para corte | Facas para papel
Polish (Polski): Noże tarczowe do papieru | Noże krążkowe | Noże do cięcia i przewijania papieru
Turkish (Türkçe): Kağıt için Daire Bıçaklar | Döner Dilme Bıçakları | Kağıt Dilimleme Bıçakları
Vietnamese (Tiếng Việt): Dao tròn cắt giấy | Lưỡi dao phân cuộn giấy | Dao xẻ rãnh giấy tròn
Thai (ภาษาไทย): ใบมีดวงกลมสำหรับตัดกระดาษ | ใบมีดกลมตัดกระดาษ | มีดกรีดกระดาษโรตารี่
Filipino: Mga Circular na Kutsilyo para sa Papel | Rotary na Blade pang-Slit
Arabic (العربية): سكاكين دائرية للورق | شفرات تقطيع الورق الدوارة | سكاكين مشق الورق
Hindi (हिन्दी): कागज के लिए परिपत्र चाकू | रोटरी स्लिटिंग ब्लेड | पेपर स्लिटिंग चाकू
Indonesian (Bahasa Indonesia): Pisau Bundar untuk Kertas | Bilah Pemotong Rotari | Pisau Pengiris Kertas
Malay (Bahasa Melayu): Pisau Bulat untuk Kertas | Bilah Mesin Membelah Rotari | Pisau Kerat Kertas
Dutch (Nederlands): Cirkelmessen voor papier | Roterende snijmessen | Papier snijmessen
Swedish (Svenska): Cirkelknivar för papper | Roterande slitsblad | Slitsknivar för papper
Hungarian (Magyar): Körkések papírhoz | Körforgó hasítókések | Papírfeldolgozó kések
Greek (Ελληνικά): Κυκλικά μαχαίρια για χαρτί | Περιστροφικές λεπίδες κοπής | Μαχαίρια σχισίματος χαρτιού
Danish (Dansk): Rundknive til papir | Rotationsknive til papirslidning | Papirskæreknive
Norwegian (Norsk): Sirkelkniver for papir | Roterende slisseblader | Papirslissekniver
Finnish (Suomi): Pyöröterät paperille | Paperinhalkaisuterät | Pyörivät paperiterät
Czech (Čeština): Kruhové nože na papír | Rotační řezací kotouče | Nože na rozřezávání papíru
Romanian (Română): Cuțite circulare pentru hârtie | Lame rotative de tăiere | Cuțite de tăiat hârtie
Slovak (Slovenčina): Kruhové nože na papier | Rotačné rezacie kotúče | Nože na rozrezávanie papiera
Bulgarian (Български): Кръгови ножове за хартия | Ротационни ножове за рязане
Croatian (Hrvatski): Kružni noževi za papir | Rotacijski noževi za rezanje papira | Noževi za prorezivanje
Ukrainian (Українська): Круглі ножі для паперу | Ротаційні різальні диски | Ножі для розрізки паперу
Azerbaijani (Azərbaycan dili): Kağız üçün dairəvi bıçaqlar | Rotasiya kəsim bıçaqları | Kağız kəsən bıçaqlar
Bengali (বাংলা): কাগজের জন্য বৃত্তাকার ছুরি | রোটারি স্লিটিং ব্লেড | পেপার স্লিটিং ছুরি
Tamil (தமிழ்): காகிதத்திற்கான வட்ட கத்திகள் | ரோட்டரி ஸ்லிட்டிங் பிளேடுகள்
Persian (فارسی): چاقوهای دایره ای برای کاغذ | تیغه های برش روتاری | چاقوهای کاغذ بر
Hebrew (עברית): סכינים עגולות לנייר | להבי חיתוך סיבוביים | סכיני חיתוך לגלילי נייר
Afrikaans: Sirkelmesse vir papier | Roterende snylemme | Papiersnymesse
