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High-precision circular paper cutting knife for industrial slitting machines

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Circular Knives for Paper Cutting

Our circular paper cutting knives are precision-engineered for the most demanding slitting and rewinding applications. Manufactured from premium tool steels such as D2, HSS, and Tungsten Carbide, these blades are designed to maintain a razor-sharp edge even during high-speed production. We utilize advanced heat treatment and precision grinding to ensure a mirror finish, which significantly reduces friction and paper dust. Whether you are processing tissue, newsprint, or heavy cardboard, our knives provide clean, burr-free cuts to ensure your final product meets the highest standards

Port:
Nanjing, China
Payment Terms:
L/C, T/T, Money Gram

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Product Description

High-Precision Circular Slitter Knives for Paper Cutting

When choosing circular knives for paper processing and packaging, the material and surface finish of the knife directly affect: roll quality, production stability, and dust control. Good blades help avoid paper breaks and ensure clean, smooth edges—no rough spots—for all paper types, from thin tissue to thick cardboard.

1. Key Technical Benefits

For dust-free cutting and consistent high-speed performance, choose blades with these features:

Mirror-Finish Surface: Special polishing reduces friction, so paper fibers don’t stick to the blade. This keeps cuts dust-free even at high speeds.
Precise Size Control: Blades have a thickness error of only ±0.002mm, ensuring stable cutting and consistent slit widths.
Heat & Wear Resistance: Advanced heat treatment keeps blades sharp and stable even under heavy use.

2. Material Comparison: Cr12 vs. HSS

Choose the right material based on your speed, paper thickness, and budget.

Cr12 (Alloy Tool Steel)

Hardness: HRC 58–62
Best For: Medium-thick paper, cardboard, kraft
Heat Resistance: Moderate
Toughness: Good for light-use cutting
Cost: Economical (good value)

HSS (High-Speed Steel)

Hardness: HRC 60–68
Best For: High-speed lines, thin tissue, labels
Heat Resistance: Excellent (stable up to 500°C)
Toughness: Excellent (hard to chip)
Cost: Premium (high-performance)

3. How to Choose the Right Blade

Choose Cr12 Blades If:

You cut rough materials (e.g., coated or laminated paper).
You run production at medium speeds with steady loads.
You want a durable, low-cost option for standard precision (±0.01–0.02 mm).

Choose HSS Blades (M2/SKH51) If:

You use high-speed lines (300–800 m/min) where heat from friction is a problem.
You need very sharp edges for sensitive paper (e.g., thermal paper, high-grade labels).
You want dust-free cuts and smooth edges for high-value printed materials.

4. Common Uses

Packaging: Kraft paper, corrugated cardboard, newsprint
Converting: Precise width cutting for laminating, bag-making, rewinding
Specialty: Adhesive labels, multi-layer laminated paper, thin tissue

Key Benefits Summary

Using high-precision HSS or Cr12 blades helps: reduce machine downtime, cut down on dust-related maintenance, eliminate rough edges, and produce a more consistent, professional final product.

Accept non-standard customization

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Global Supply: Precision Circular Knives & Rotary Slitter Blades for Paper

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.

Multi-language Index for Paper Converting & Slitting:

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

Circular Knives for Paper Slitting Circular Knives