Explore our flagship heavy-duty circular diamond saw blades and specialized thin-kerf diamond discs engineered for precision CNC bridge saws, primary block saws, and multi-blade tile splitters.
Modern granite processing demands unprecedented cut speeds, micro-meter tolerances, and minimized kerf losses. Here is how original design manufacturing (ODM) engineering has evolved from basic powder pressing to aligned diamond arrays and metallurgical matrix customization.
Random diamond grit dispersion causes uneven segment wear, thermal peaking, and premature blade failure. Our ODM automated lines employ three-dimensional structured particle positioning, ensuring every synthetic diamond crystal shares equal cutting stress, extending operational life by 35% to 50% across Class IV/V quartz-rich granites.
Formulating the ideal metal matrix binder requires strict control of cobalt, copper, tin, tungsten carbide, and nickel proportions. Sintering under vacuum hot-press conditions (HIP) guarantees mechanical retention of high-grade monocrystalline diamond grit (Grade MBD8/SMD25) without thermal graphitization during aggressive cutting cycles.
Silver brazing risks joint softening when dry cutting or during coolant interruption. By transitioning to fully automated multi-axis fiber laser welding, segment-to-core shear strengths exceed 25 Nm/mm² (meeting EN13236 safety standards), eliminating segment detachment risks under 5-axis CNC high-speed beveling.
Operating as an official member of the China Superhard Material Association, JIAYAN leverages integrated metallurgical automation to give overseas partners unshakeable lead times, agile OEM custom batching, and consistent blade-to-blade cutting dynamics.
Microscopic shape sorting and impact toughness (TI/TTI) testing isolate optimal monocrystalline diamond particles (30/35 to 50/60 mesh) for precise granite hardness matching.
Multi-cavity automated hot presses regulate ramp-up temperatures and hydraulic tonnage with +/- 2°C precision, eliminating porosity and boosting bond density.
High-energy robotic laser cells fuse the sintered diamond segments onto German 75Cr1 alloy steel cores, producing deep weld penetration and high fatigue resilience.
Every single blade body undergoes computer-controlled hammering and acoustic resonance testing to guarantee run-out under 0.03mm, eliminating wobbling and high-speed screech.
We engineer customized segment formulas, keyhole slots, drop segments, and sandwich core dampening according to your regional stone quarry properties and local CNC machine power (15HP to 50HP).
Selecting the appropriate segment composition, bond hardness, and steel blank tension depends strictly on stone quartz content, machine motor power, and water-feed conditions.
| Granite Hardness Class | Representative Stone Varieties | Quartz % | Optimal Matrix Bond Type | Recommended Diamond Grit / Conc. | Core Type & Water Flow |
|---|---|---|---|---|---|
| Class I (Soft Granite) | Giallo Cecilia, Santa Cecilia, Baltic Brown | 15% - 25% | Hard Cobalt-WC Matrix (Resists Abrasion) | 40/50 Mesh | 25% - 30% Conc. | Standard Core | 25-35 L/min |
| Class II / III (Medium) | Kashmir White, Tan Brown, Ubatuba | 25% - 35% | Medium-Hard Cobalt-Bronze Blend | 40/45 Mesh | 28% - 32% Conc. | Silent Sandwich Core | 30-45 L/min |
| Class IV (Hard Granite) | Absolute Black, Emerald Pearl, Blue Pearl | 35% - 45% | Medium-Soft Bronze-Nickel Free-Cutting | 45/50 Mesh | 30% - 35% Conc. | Laser-Welded Silent | 40-50 L/min |
| Class V (Extremely Hard / Quartzite) | Taj Mahal, Mont Blanc, Calacatta Macaubas | > 50% | Ultra-Soft High-Bronze Multi-Layer Array | 50/60 Mesh | 35% - 40% Conc. | Reinforced Sandwich | 50+ L/min |
| Engineered / Sintered Stone | Dekton, Neolith, Lapitec, Porcelain Slabs | Vitrified Ceramic | Micro-Grain Brittle Matrix (Zero Chipping) | 60/70 Mesh Micro-Grit | 30% Conc. | High-Tension Silent Rim | High Pressure |
From large-scale dimensional block extraction in India and Brazil to high-precision 45-degree miter cutting in North American and European countertop workshops, our ODM diamond blades are engineered to excel under extreme fabrication demands.
Fabricating waterfall edge islands requires blade rigidity to prevent deflection at 45-degree angles. Our reinforced steel blanks and J-slot turbo segments guarantee straight-line accuracy, eliminating post-cut edge polishing hours on high-end granite and quartzite slabs.
Commercial slab distributors running automated bridge saws at 5 to 10 meters per minute rely on our sandwich-segment metallurgy. The softer outer layers with harder central ribs maintain a self-sharpening convex profile, preventing motor load spikes and blade jamming.
Heavy civil building projects require deep cutting of 50mm-100mm thick granite blocks. Our keyhole and deep-drop segment designs maximize slurry evacuation and air cooling, preventing segment glaze and thermal stress fractures during high-feed dry or semi-wet cycles.
At JIAYAN Superhard, our quality management protocol ensures zero compromise on operator safety and cutting efficiency through multi-stage metallurgical inspections.
Sampling lots undergo hydraulic shear bending tests on laser weld joints to verify weld penetration beyond the international EN13236 standard. Blades must withstand bending loads exceeding 200% of maximum machine operating torque without micro-cracking at the root junction.
We analyze segment cross-sections under electron microscopes to monitor diamond-to-matrix chemical bonding. Utilizing titanium-coated diamond grit enhances wetting during sintering, effectively preventing premature diamond pull-out and maximizing crystal utilization rate.
Everything procurement managers, tool distributors, and plant operators need to know about ODM blade customization, feed speeds, silent cores, and cost-per-cut optimization.
OEM (Original Equipment Manufacturer) produces saw blades directly to your existing CAD drawings and exact powder formulas. ODM (Original Design Manufacturer) allows our metallurgical team to design custom diamond segment matrices, bond hardness, segment slot shapes, and silent core damping tailored to your target stone hardness, machine horsepower, and regional market pricing goals.
Silent cores consist of two laser-cut outer steel plates sandwiching an ultra-thin acoustic copper or synthetic resin dampening foil. This sandwich structure absorbs acoustic harmonics and vibration spikes, reducing machine operating noise by 10 to 15 decibels while damping run-out oscillations to protect cutting edge integrity.
Segment glazing occurs when the metal bond is too hard for the stone being cut, preventing the matrix from wearing away to expose fresh diamond grits. The blade becomes smooth and slows down. It can be dressed by cutting into an abrasive material like refractory firebrick or asphalt, or by requesting an ODM formula adjustment with a softer bronze-rich matrix.
For standard 350mm (14 inch) granite blades, the ideal linear peripheral speed is between 28 m/s and 35 m/s. On a standard bridge saw, this corresponds to approximately 1,750 to 2,300 RPM. For quartzites and ultra-hard black granites, running closer to 26-28 m/s with ample water coolant prevents segment overheating.
Laser welding fuses the diamond segment directly to the steel core via high-energy beam penetration without filler metal, creating a joint that can withstand temperatures above 600°C. Silver brazing relies on a flux that melts around 350°C, risking segment detachment if coolant flow stops or during aggressive dry cuts.
We utilize computer-controlled automated powder weighing, automatic multi-station cold pressing, robotic laser welding lines, and rigorous digital tension calibration. Every production batch is archived with powder lot records and verified via sample destructive torque testing.
Yes. Our ODM services include custom fiber-laser logo etching, customized bore sizes (e.g., 50mm, 60mm with 50mm reducing rings, or standard 25.4mm), drive pinhole configurations, custom segment painting, and private label packaging design.
For standard specifications (300mm–400mm granite blades), standard sample orders have an MOQ of 10–20 pieces with a lead time of 7–10 days. Customized ODM mass production runs (50–500 pieces) typically ship within 15–25 days from our Wuhu manufacturing hub.
Browse our complete series of industrial stone cutting blades, hot-pressed continuous rim discs, and ultra-thin ceramic segment discs designed for global fabrication companies.
Founded in Wuhu, China, JIAYAN Superhard is a leading manufacturer of high-precision diamond saw blades, diamond cutting discs, and custom abrasive solutions for the stone, ceramic, and masonry construction industries. As an esteemed member of the China Superhard Material Association, our facility combines automated powder metallurgy, hot-isostatic press sintering, and laser robotic cells.
Having exported across 50+ countries in Europe, North America, the Middle East, and Latin America, we provide global diamond tool distributors and stone processing companies with scalable ODM production, custom bond formulas, and reliable supply chain execution.
Connect with our engineering specialists to discuss your custom matrix specifications, silent core needs, or requested distributor catalog.
