The HTHP sintered S1916 PDC cutter is a premium polycrystalline diamond compact manufactured via high‑temperature high‑pressure (HTHP) sintering process. It features a 19.05 mm diameter, 16.31 mm total height, and a 2.3 mm diamond layer, combining the extreme hardness of PCD with the high toughness of tungsten carbide substrate. Engineered for harsh drilling conditions, it delivers high ROP, long service life, and reliable performance in oil/gas, geothermal, and mining applications.
| Model NO. | S1916 | Length | Standard |
| Type | PDC Cutter/Insert/Button | Material | Tungsten Carbide |
| Usage | Well Drilling, Oilfield, Gas Field, Mining Industry, Construction | Wear Resistance | Super High |
| Thermal Stability | 750°C, 800°C, 850°C, 900°C | Production Process | Hthp Sintering |
| Diamond Grade | PCD | Substrate Material | Tungsten Carbide |
| Total Height | 5~34 | Tolerance | ±0.02mm |
| Impact Toughness | Excellent | Certification | ISO 9001 |
| Shape | Round | Matched Drill Bit | PDC Drill Bits, Core Bits, Tricone Bits, Drill Pipes (We also offer custom drill bit manufacturing) |
| MOQ | 100PCS | Specification | 1916 |
| Transport Package | Customized, Carton/Wooden Case | Origin | China |
| Trademark | Ninestones | Production Capacity | 10000pieces/Year |
Soft to medium formations: mudstone, sandstone, shale, limestone
Highly abrasive formations: quartz‑rich sandstone, gravel, interbedded strata
Medium to hard formations: dolomite, tight sandstone, low‑grade metamorphic rock
Deep well & high‑temperature environments: deep oil/gas wells, geothermal wells (thermal resistance ≥ 750°C)
Core Product Advantages
Superior Wear Resistance & Longer Life
Sintered at 6 GPa and 1500°C with dense diamond grain bonding; wear resistance 30%+ higher than standard cutters, reducing tripping frequency.
High Impact Resistance & Chipping Resistance
Tungsten carbide substrate + corrugated interface design absorbs shock loads; shear strength ≥ 4000 N, preventing delamination and tooth breakage.
Excellent Thermal Stability for Deep Wells
Deep cobalt‑leaching process enables 750°C heat resistance, suppressing diamond graphitization and ensuring stable performance in deep/high‑temperature wells.
Good Self‑Sharpening & Consistent Drilling Speed
Optimized PCD microstructure maintains a sharp cutting edge during wear; stable ROP without dulling and dragging.
Strong Bonding & Zero Delamination
Metallurgical bonding at the PCD‑WC interface with corrugated design; increased bonding area and reduced residual stress—no delamination or cracking under long‑term high pressure.
Precise Dimensions & High Compatibility
Standard S1916 Flat PDC Cutter size: 19.05 × 16.31 mm with tolerance ±0.05 mm; fits most mainstream PDC bits, easy installation and interchangeability.
Precise Size Specifications
Standard S1916 Flat PDC Cutter specification: diameter 19.05 ± 0.05 mm, total height 16.31 ± 0.10 mm, diamond layer thickness 2.30 ± 0.20 mm, end radius 0.30 ± 0.10 mm. Custom non‑standard diameter, height, PCD thickness, flat/curved/spherical cutting edges are available for special bit designs.
Material and Core Technology
Dual‑Material Composite Structure
Surface: high‑purity polycrystalline diamond (PCD), hardness ≥ 8000 HV for rock cutting.
Substrate: ultrafine‑grain tungsten carbide (WC‑Co), hardness ≥ 1600 HV for support and impact resistance.
HTHP Sintering Technology
One‑step forming at 6 GPa ultra‑high pressure and 1500°C high temperature; forms metallurgical bonding between PCD and WC, bonding strength increased by 50%+ compared to bonded types.
Interface Optimization & Deep Cobalt‑Leaching
Corrugated interface enhances bonding; special acid treatment removes cobalt catalyst, raising thermal stability from 700°C to 750°C and extending life in high‑temperature applications.
Application Field
Oil & Gas Drilling
Suitable for shallow to medium-deep well operations on land. Works well in tight sandstone, interbedded strata and gravel-bearing formations. High temperature resistance avoids carbonization and delamination, reducing bit replacement and overall drilling cost.
Mining Drilling & Exploration
Ideal for mineral prospecting, tunnel drilling and mine water well projects. Perfect for high-abrasive hard rock such as granite and quartzite. Excellent impact resistance prevents edge chipping, serving longer life in fractured mining formations.
Geothermal & Deep Well Drilling
Featuring 750°C high thermal stability, it adapts to extreme high-temperature and high-pressure deep well environments. It resists diamond graphitization and structural failure for long-term stable drilling work.
Water Well & Infrastructure Engineering
Widely used in deep water wells, pile foundation drilling and construction projects. Efficient penetration in common rock layers, low wear and stable performance for long-time continuous site operation.
Universal Bit Matching
Compatible with mainstream PDC bits, core bits and drilling tools with good interchangeability. Custom sizes and chamfers are available to meet non-standard matching demands for different projects.
Customized Service
Size customization: non‑standard diameter, height, PCD thickness (1.8–2.5 mm)
Cutting edge customization: flat, arc, spherical, spoon‑shaped
Interface customization: flat, corrugated, grid bonding surface
Performance customization: wear‑resistant, impact‑resistant, high‑temperature grade
Bulk orders: 500–10,000 pcs, delivery 15–30 days
FAQ
Q1: What’s the difference between 1916 and 1913 PDC cutters?
A: Main difference is total height: 1916 = 16.31 mm, 1913 = 13.20 mm. 1916 has thicker substrate, higher impact resistance for medium‑hard/hard formations and deep wells; 1913 is more cost‑effective for soft‑medium formations.
Q2: What is the temperature rating? Suitable for geothermal wells?
A: Deep cobalt‑leaching grade, 750°C thermal stability. Works long‑term at 600–700°C, fully suitable for geothermal and deep oil/gas wells.
Q3: Do you provide samples? How long for samples?
A: Free samples (1–3 pcs) available in 3–5 days. Bulk order lead time: 15–30 days, rush order 7–10 days upon request.
Q4: Can worn cutters be repaired?
A: Yes. We offer re‑grinding and PCD re‑welding service; restored performance ≥ 90% of new. Bulk repair available.
Q5: Warranty policy?
A: ISO9001 certified. 6‑month warranty under normal use. Non‑artificial quality issues: free replacement/refund, lifetime technical support.