Uking Diamond’s Solid CBN cutting inserts represent the zenith of tool construction strength. Containing zero carbide backing or silver brazing layers, these solid PCBN matrices provide isotropic structural integrity to withstand violent torque spikes and high red-hardness under devastating thermal and mechanical stress:

Severe Interrupted Automotive & Train Hard Turning

Survives continuous cross-hole, splines, and keyway interruptions when roughing hardened steel gears ( 58–65), preventing crack propagation along the flank.

Heavy-Duty Steel Mill Rolls & Slag Castings

Effortlessly slices through the uneven, abrasive oxidized skin and structural sand inclusions of chilled cast iron and high-manganese steel mill rolls.

Large-Diameter Wind Power Bearings & Slewing Rings

Supports extra-large depth of cut ( ≥2.0 mm) and aggressive feed rates during the initial roughing passes of large-scale forged rings.

Aerospace High-Temperature Superalloys Roughing

Maintains exceptional chemical inertness against thermal sticking and diffusion wear when scaling dense Inconel or titanium forged components.

Models & Specs

1. Isotropic Solid Phase Homogeneity vs. Layered Composites

While tipped or composite tools rely on a thin functional layer backed by carbide, they introduce an internal thermal expansion mismatch line. When a tool hits a deep keyway interruption or a severe casting void at 200 m/min, this composite boundary acts as a stress-collector, leading to severe splitting.

Uking’s Solid CBN inserts feature a 100% homogeneous solid phase block. Sintered under intense HPHT parameters, the pure crystalline microstructure disperses impact energy equally in all directions (isotropic toughness). This eliminates structural delamination vulnerabilities completely, enabling machine operators to run heavy, aggressive dry cuts that would instantly fracture standard layered tooling.

2. Fully Regrindable Lifecycle: Maximizing Your Capital Asset Return

In high-volume heavy industries, a tool is not just a consumable—it is a production asset.

Because Uking’s Solid CBN series contains no carbide backing, the entire insert body consists of cutting-ready PCBN material. Once the initial cutting edges reach their wear limits, the inserts can be reground and re-lap polished multiple times to original specifications.

This multi-lifecycle profile offsets the higher initial purchase price, slashing your long-term tooling cost-per-part over months of continuous production campaigns.

Why Choose Uking Diamond Solid CBN?

Zero Delamination Risk Under Interruption: 100% alloy-free solid block composition ensures absolute structural immunity against severe mechanical impacts.

Extreme Depth of Cut ( ap ) Resilience: Allows maximum material removal rates (MRR) per pass without the clearance constraints of brazing or layering zones.

Multi-Cycle Regrindable Economy: Entire body geometry can be multi-stage reground and re-sharpened, maximizing tool life and destroying long-term inventory costs.

Supreme Thermal Red-Hardness: Retains mechanical edge hardness at intense friction zone temperatures up to 1100°C, perfect for continuous high-speed dry turning.

Application

Are your heavy-duty mill roll dressing or wind-power bearing machining lines constantly stopping due to sudden tool fractures, micro-cracking, or brazing failure under severe interrupted cuts?

Stop gambling your large-scale casting components and expensive CNC spindle time on fragile tipped inserts that cannot survive raw casting crusts. Backed by 20 years of ultra-high pressure large-scale-volume solid PCBN synthesis authority in Henan, China, Uking Diamond manufactures industrial-grade 100% Solid CBN inserts built to conquer the most hostile metal-cutting environments on Earth.

Because these pure solid-phase PCBN blanks represent the highest echelon of superhard manufacturing cost and heavy industrial performance assets, we do not distribute unverified free samples. We focus entirely on high-intent industrial process alignment.

Ready to master severe interruptions and unlock multi-time regrinding economy? Contact our global heavy-duty tooling division today with your current ISO configuration (e.g., RNGN 120400), your exact workpiece alloy spec (HRC\ /HB), and your current bottleneck (e.g., rapid micro-chipping or thermal splitting). Our team will instantly activate your Corporate Solid CBN Evaluation Pass: obtain your prioritized test batch of pure solid CBN inserts at direct factory wholesale cost, with 100% of the sample evaluation fee fully credited back to your balance upon your first bulk commercial order.

[ Contact Our Global Tooling Desk & Request Your Solid CBN Quote Now ]