Advanced PDC Technology & R&D
Engineered diamond matrix synthesis, deep leaching thermal control, and custom geometry for tough formations.
Core Material Innovations
HPHT Diamond Network
Optimized multi-modal diamond grain distribution creates high D-D (Diamond-to-Diamond) direct bonding under extreme pressures using D650-D800 cubic presses.
- Pressure Range: 6.0 – 8.5 GPa (Extreme HP)
- Temperature: >1450°C Synthesis
Deep Acid Leaching
Removes residual Cobalt catalyst from the diamond matrix, preventing thermal degradation and micro-cracking during high-temperature drilling operations.
- Leaching Depth: Top 1200–1300μm / Side 1800–2200μm
- Thermal Threshold: >780°C (≥5 Thermal Cycles)
Non-Planar Mesh Boundary
Custom tungsten carbide & diamond non-planar interface minimizes stress concentration and resists extreme lateral impacts during interbedded drilling.
- Impact Resistance: ≥60 J (Side Impact)
- Design: Non-Planar Substrate Interface
3D-Machined & Custom Geometry
Advanced CNC grinding enables 3D profiles (MT/MA/MV series) including Conical, Dome, Wedge, and Axe profiles to enhance ROP and crushing mechanisms.
- Geometries: Conical, Dome, Wedge, Axe
- Series: MT / MA / MV 3D Shaped Cutters
Cobalt Leaching Technology Matrix
Why thermal stability matters in hard and abrasive rock drilling.
Non-Leached Standard Standard
Residual cobalt remains inside the diamond layer. High thermal expansion of cobalt causes micro-fractures above 750°C.
- Best for: Soft to Medium Formations
- Max Temp: ~750°C
- Wear Mechanism: Normal Abrasive Wear
Deep Leached Cutter High Performance
Cobalt removed from working tip. Eliminates cobalt thermal expansion differential, allowing the cutter to sustain extreme frictional heat without thermal spalling.
- Best for: Abrasive Sandstone, Geothermal & Basalt
- Max Temp: Up to 1150°C
- Wear Mechanism: Ultra-high ROP Retained
Shaped Cutter Geometries (3D Profiles)
Ridge Cutters
Plows through hard rock with concentrated point-loading stress.
Axe / Wedge Cutters
High impact shearing for interbedded and conglomerate formations.
Dome Inserts
Maximum impact resistance for heavy-duty mining and tunneling picks.
Polished Flat Cutters
Mirror surface finish reduces bit balling in sticky shale and clay.
Have a Custom Geometry or HPHT Requirement?
Our engineering lab provides tailored PDC cutter designs based on your formation logs.
Consult an R&D Engineer
Drill Deeper. Last Longer.
Ninestones specializes in high-performance PDC cutters with custom solutions for drilling industries.
Factory ADD: No. 5, Fortune 2nd Road, East Lake High-tech Development Zone, Wuhan
EMAIL: sales@ns-pdc.com
PHONE: +86 13476102013