Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. is a volume producer of high-quality large diameter circular slitter blades and flat circular machine knives. As seen in the 250mm size, these knives are the backbone of many continuous production lines, including paper, printing, packaging, and non-woven industries. Manufactured from premium High-Speed Steel (HSS) or D2 Tool Steel, our blades are subjected to strict vacuum heat treatment and precision ground paper cutting tools processes. We ensure superior edge sharpness, exceptional longevity, and precise concentricity, making them ideal long-life slitter knife replacement options for high-volume operations.
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30 daysMa'anshan Guangchuan is your source for large diameter circular slitter blades and flat circular machine knives. We supply HSS rotary cutting knives 250mm and industrial paper trimming knives with superior sharpness. Get the best long-life slitter knife replacement options, featuring precision ground paper cutting tools and custom OD/ID rotary blades.
Technical Specifications
|
Parameter |
Description |
| Material Options | HSS (M2, M42), D2 Tool Steel, SKD11, High Chrome Steel (Customizable) |
| Hardness (HRC) | 60-64 HRC (HSS); 58-62 HRC (D2); Optimized for toughness and wear) |
| Outer Diameter (OD) | Range: 100mm to 800mm (Common size: 250mm/10 inch) |
| Inner Diameter (ID) | Metric and Imperial bores (e.g., 25.4mm / 1 inch) |
| Edge Geometry | Single/Double Bevel, Bevel Angle Customizable ±0.5° |
| Tolerance | Flatness (Parallelism) ≤0.005mm; Runout ≤0.01mm |
| Application | Slitting, Trimming, Scoring, Shearing |
Main Features
Exceptional Size Range: Specialized in manufacturing and grinding large diameter circular slitter blades up to 800mm while maintaining tight tolerances.
Premium HSS Material: Our HSS rotary cutting knives 250mm offer superior wear resistance, crucial for cutting thick paper or continuous plastic films.
Flawless Finish: Every blade undergoes precision ground paper cutting tools finishing to ensure a clean, polished surface and a razor-sharp edge.
Dimensional Accuracy: Laser-etched dimensions and precise machining ensure the flat circular machine knives are perfectly aligned and interchangeable with OEM parts.
Long Service Intervals: Designed for maximum cutting cycles before requiring replacement or regrinding, acting as excellent long-life slitter knife replacement options.
Advantages
Maximum Uptime: Reduced need for frequent changes ensures minimal disruption to your continuous production lines.
Superior Cut Quality: The precise flatness and sharpness guarantee clean separation, minimizing dust, paper fuzz, and burrs.
Cost-Effective Sourcing: Direct factory supply offers competitive pricing for premium quality industrial paper trimming knives and slitter blades.
Customization Expertise: We excel at providing custom OD/ID rotary blades to perfectly match non-standard or legacy machinery.
Product Applications
Paper & Printing: Industrial paper trimming knives, slitter knives for rewinder/slitters, and core cutters.
Film & Foil: Slitting and perforating knives for plastic films, adhesive tapes, and aluminum foil.
Textile: Round knives for fabric and non-woven material cutting.
Standard Sizes: We stock common OD/ID combinations.
Custom Service: We welcome inquiries for specific custom OD/ID rotary blades or special material requirements.
Why Choose Us
Mass Production Precision: Capacity to deliver high volumes of large diameter circular slitter blades consistently, meeting global manufacturing demands.
Metallurgical Control: Complete control over the material selection (HSS, D2) and vacuum heat treatment for optimal performance.
Decades of Experience: Long-standing expertise in supplying reliable flat circular machine knives to the world's leading paper and converting companies.
ISO Certified Quality: Strict quality management ensures every HSS rotary cutting knives $250mm$ meets international standards.
Paper tube cutting lines commonly struggle with ragged burr edges, paper dust buildup and frequent blade changes that drag down overall throughput. Ma'anshan Guangchuan’s rotary paper tube cutting blades are purpose-built for high-speed paper core and tube processing, delivering consistent debris-free cuts and extended edge life across spiral paper tubes, cardboard cores and thick-walled paper products.
Details
Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. manufactures precision circular cardboard slitting blades. Engineered for corrugated board and paper converting lines, these HSS and alloy steel blades deliver clean, burr-free cuts with minimal paper dust. Advanced vacuum heat treatment and precision grinding ensure long-lasting sharpness and stable performance in high-speed continuous slitting operations.
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Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. manufactures high‑precision multi‑edge bottom slitter blades. These integral multi‑groove rotary bottom knives are engineered for industrial high‑speed slitting equipment, delivering consistent multi‑strip cutting performance for metal foil, paper, adhesive substrates and various composite materials under continuous heavy‑duty production conditions.
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Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. manufactures high-precision top circular blades for shear slitting. Used with bottom knives, these upper slitter knives deliver clean, burr-free cuts on metal foils, paper, films, and composites. Made from premium tool steels and carbides with advanced heat treatment and precision grinding, they provide exceptional edge retention, micron-level accuracy, and higher slitting efficiency.
Details
Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. manufactures high-precision bottom knives for heavy-duty slitting and rewinding. Used with top circular knives, our blades deliver clean, burr-free cuts on metal, foil, paper, and film. Made from premium steel and carbide with advanced heat treatment and lapping, they provide excellent wear resistance, micron-level concentricity, and longer service life.
Details
Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. is a leading manufacturer of high-precision circular slitting knives engineered for demanding industrial slitting applications. Our industrial-grade slitting blades are designed to deliver clean, burr-free cuts on a wide range of materials including films, paper, and metal foils at high production speeds. Manufactured from premium tool steels with advanced heat treatment and precision grinding, these blades offer exceptional edge retention and high accuracy, maximizing your slitting line efficiency and product quality.
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Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. is a leading manufacturer of high-precision circular slitting knives engineered for the most demanding thin material slitting applications. Our industrial-grade slitting blades are designed to deliver clean, burr-free cuts on ultra-thin films, paper, and copper foil at high production speeds. Manufactured from premium tool steels and tungsten carbide with advanced heat treatment and precision grinding, these blades offer exceptional edge retention and micron-level accuracy, maximizing your slitting line efficiency and product quality.
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Ma'anshan Guangchuan Machinery Knife Mold Technology Co., Ltd. is a premier manufacturer of precision food-grade circular cutting blades designed for high-volume food and beverage processing lines. Our dual-option rotary knives are available in both razor-sharp smooth edge and precision serrated edge configurations, engineered to deliver consistent, clean cuts across a wide range of food products. Manufactured exclusively from FDA-compliant stainless steels and finished to pharmaceutical-grade standards, these blades eliminate contamination risks while providing exceptional edge retention and durability. Whether you need to slice delicate baked goods, tough meats, or sticky confectionery, our circular blades optimize production efficiency and maintain the highest food safety protocols.
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