Explore our elite range of high-wear performance blades manufactured under ultra-strict tolerances, optimized for packaging, batteries, paper milling, and food grade processing.
In modern, high-speed slitting operations, the circular razor blade acts as the critical interface between machinery and material. Whether slitting flexible packaging films, metal foils, paper, or complex lithium-ion battery separators, edge geometry and structural durability govern process yield and downtime. Selecting a standard blade often leads to premature wear, micro-chipping, and high burr levels that degrade end-product quality.
At Shen Gong Carbide Knives, our engineering philosophy revolves around material optimization and dynamic stress-profile analysis. By replacing conventional tool steels with customized WC-based (tungsten carbide) and TiCN-based cermet materials, we extend blade service life by up to 200–500% under severe friction conditions. To guarantee stable performance across diverse production environments, our blades undergo specialized Hot Isostatic Pressing (HIP) and micro-lapping, resulting in an average surface roughness (Ra) down to 0.02μm.
“An optimized industrial cutting system is not just about hardness; it is a calculated synergy between hardness, transverse rupture strength (TRS), edge geometry, and specialized coating solutions.”
Established in 1998 in Chengdu, the high-tech hub of southwest China, Shen Gong has grown from a specialized workshop into a globally recognized enterprise dedicated to the research, development, and high-precision manufacturing of cemented carbide and TiCN-based cermet industrial knives.
For over two decades, we have maintained a complete vertical manufacturing system. From raw Ready-to-Press (RTP) powder preparation to pressing, sintering, precision grinding, and final coating, every step is executed within our own ISO 9001:2015 certified facilities. This deep technical control guarantees batch-to-batch consistency that international OEMs and packaging operations rely on.
Designed to perform under extreme shear pressures, high rotational speeds, and complex material properties across diverse converting industries.
Sub-micron grain structure optimized for cutting high-toughness synthetic filaments without edge heat buildup.
High-impact toughness grade steel and cermets engineered for splitting silicon steel and non-ferrous foils.
Global-leading performance blades paired with automated self-sharpening diamond systems.
Specially formulated impact-resistant carbide matrices for handling recycled materials and tough polymers.
Mirror-polished edges that reduce dust formation and prevent polymer build-up during film converting.
Absolute notch-free mirror edge prevents coating adhesion and cuts clean separator membranes.
Precision tolerances for exact runout matching with top blades in high-volume slitting stations.
Provides high-speed clean slicing on multilayer composite tubes and dense filtering materials.
Shen Gong is not just a blade supplier; we are your engineering support system, optimizing your slitting lines for maximum productivity.
Production is executed in accordance with our strict ISO quality systems, ensuring dimensional stability and blade thickness tolerance controls across batches. Send your samples; we handle the rest.
Rooted in blade engineering, but far beyond. Our technical R&D team analyzes your cutting speed, target material properties, and shear forces to resolve micro-chipping and line degradation issues.
Whether examining micro-grain geometry, carbide density, binder distribution, or edge wear mechanics, Shen Gong provides comprehensive material diagnostics to ensure peak processing efficiency.
Promoting sustainability in modern industrial operations. We offer professional re-sharpening and resource recovery services for used carbide tools, reducing your raw material costs and environmental footprint.
Our dedicated account representatives deliver technical assistance in English, Japanese, and German. We evaluate and respond to your standard requests and custom specifications within 24 hours.
Strategic logistics partnerships ensure expedited air shipping, customs clearance documentation, and protective packaging to prevent edge micro-fractures during transport globally.
Every industry demands distinct material performance and geometric configurations. Discover how our specialized blade solutions align with your application needs.
Our high-toughness carbide grades are specially engineered to produce pelletizing knives for plastic and rubber manufacturing, as well as shredding blades for waste recycling. Formulated to resist impact fractures from contaminants.
Industrial razor blades designed for cutting synthetic fibers and non-woven fabrics deliver superior performance. With exceptional edge sharpness, straightness, symmetry, and surface finish, they prevent filament fraying and increase speed.
Clean slicing operations are achieved with our food-safe industrial knives, tailored for meat cutting, sauce grinding, and nut crushing. Engineered to resist organic acid corrosion and maintain edge integrity through long washdown cycles.
High-precision micro-knives designed for medical applications, including catheter slicing, test strip profiling, and surgical plastic trimming. Micro-lapped under strict cleanroom production protocols to ensure zero-defect output.
We provide TiCN-based cermet cutting tools for semi-finishing to finishing steel parts. Their low affinity with ferrous metals prevents built-up edge (BUE) formation, resulting in high surface finishes during machining.
Shen Gong is one of the world's leading manufacturers of corrugated slitter-scorer knives. We also supply matched diamond sharpening wheels, cross-cut blades, and associated components for major high-speed slitter machinery brands.
Our advanced carbide materials deliver exceptional wear resistance. We offer specialized surface treatments, including anti-adhesion, corrosion resistance, and dust-suppression coatings, for blades used in high-volume paper slitting lines.
Shen Gong pioneered precision slitting knives in China specifically for lithium-ion battery electrodes. Featuring a mirror-finished edge with zero micro-notches, these blades prevent coating adhesion at the tip. We also supply matching knife holders.
Our high-precision shear slitting knives are engineered for slitting thin metal foils and silicon steel sheets in motor manufacturing. They maintain close axial alignment and prevent edge burrs on ductile metals.
For global procurement managers, the total cost of ownership (TCO) of slitting components is directly linked to raw material security and vertical production control. China holds over 80% of the world's tungsten reserves, providing a strategic foundation for development in cemented carbide technology.
Sichuan Shen Gong Carbide Knives is situated in Southwest China, a region rich in metallurgical resources. We leverage this location to secure premium APT (Ammonium Paratungstate) and cobalt directly, shielding our clients from external raw material price volatility.
By operating our own powder formulation lines, we mix custom Cobalt binder contents (varying from 6% to 15%) to match the exact impact and wear resistance requirements of your application. When compared to manufacturers who rely on pre-mixed third-party powders, we offer superior control over thermal expansion and hardness consistency.
Our supply chain control ensures stable lead times and raw material pricing, backed by ISO 9001 quality audits at every process stage.
Serving global tier-1 manufacturers requires compliance with strict safety and environmental standards. Our cemented carbide formulations comply with RoHS and REACH regulations, ensuring our blades are suitable for use in medical device production and food packaging plants.
We source raw materials exclusively from certified conflict-free mines. In terms of local support, we understand that manufacturing downtime can cost thousands of dollars per hour.
We provide local technical representatives in key regions, virtual CAD verification sessions, and inventory holding programs (consignment stock) for high-volume customers. This approach minimizes transport delays and ensures backup tooling is always available near your production facility.
Technical innovations driving the next generation of precision cutting systems, from physical vapor deposition to smart automated slitting heads.
Modern high-speed films utilize abrasive additives like titanium dioxide. To maintain edge sharpness, we utilize multi-layered PVD coatings (such as our proprietary ETaC-3 or TiAlN) to reduce friction and extend blade life under high heat.
The rise of solid-state and high-energy-density Li-ion batteries demands notch-free slitting. Micro-voids along the blade edge can cause stress concentrations, leading to battery foil failures. Mirror-polished edges are now the standard requirement.
Environmental regulations are driving demand for scrap-reduction and blade recycling programs. Re-conditioning tungsten carbide tools helps lower the cost per cut while aligning with corporate environmental goals.
Stay updated on our materials research, holiday schedules, and performance case studies from worldwide production lines.
Feb 12, 2026
Dear Valued Partners and Customers, As the New Year approaches, we would like to take this opportunity to sincerely thank you for your trust and support over the past year. Please be informed that our company will be closed for the New Year holiday from [2026/2/14] to [2026/2/20]. Normal shipping and support will resume immediately thereafter.
The global manufacturing recovery and growing demand in emerging sectors are driving changes in the supply and demand of key raw materials like tungsten carbide. Shen Gong is actively working to optimize material sourcing, ensure price stability, and maintain production output for our long-term strategic partners.
Jan 03, 2026
A packaging facility operating high-speed corrugated slitting machinery experienced a 20% tool life increase after upgrading to Shenggong's custom carbide blades. By minimizing edge degradation, the plant reduced weekly downtime and improved cross-cut edge quality across multi-layered fluting boards.
Expert technical answers to common questions about material selection, maintenance, and precision tolerances.
Tungsten Carbide (WC-Co) is suited for applications requiring high wear resistance paired with impact toughness, such as cutting corrugated board or paper. TiCN-based Cermet is recommended for high-speed finishing cuts on metal foils or plastics. Cermet's low chemical affinity for metals minimizes built-up edge (BUE) and reduces friction, resulting in cleaner cuts.
We manufacture custom blades with outer diameter (OD) runout tolerances within ±0.005 mm and thickness tolerances down to ±0.002 mm. Our finishing processes can achieve a surface roughness (Ra) down to 0.02μm, which is critical for reducing friction and material buildup on the blade face.
For custom OEM blades, the design and material verification stage typically takes 7–10 working days. Once the technical drawings are finalized and approved, production—including pressing, sintering, grinding, and coating—requires 25–35 days, depending on the complexity of the geometry and the size of the batch.
We manage consistency by keeping the entire production process in-house. We formulate our own Ready-to-Press (RTP) powders and utilize Hot Isostatic Pressing (HIP) sintering to eliminate internal micro-voids. Each production run is verified using metallurgical microscopes and hardness testers, with the data archived for quality tracking.
While uncoated solid carbide blades perform well, PVD coatings like TiAlN or our ETaC-3 formulation are beneficial for cutting abrasive plastic films (such as those containing TiO2 or secondary recycled resins). The coating acts as a thermal and physical barrier, reducing wear and extending blade life.
Explore our full-range catalog of specialty slitting tools, tire-deburring blades, and custom-coated carbide knives designed for demanding industrial operations.
Shen Gong Carbide