Cutter selection depends on formation hardness, impact levels, and required Rate of Penetration (ROP):

• 1913 / 1919 (19mm): Ideal for soft-to-medium formations (shale, sandstone) where high ROP is prioritized. Offers larger depth of cut per revolution.
• 1613 / 1616 (16mm): The industry standard balance between ROP and impact resistance. Excellent for medium-hard and interbedded formations.
• 1308 / 1313 (13mm): Preferred for hard or highly abrasive formations, offering higher impact durability and lower torque requirements.
• 0804 / 1008 (8-10mm): Commonly used in core drilling, mining roof-bolts, and directional drilling blades.

Leaching removes the cobalt catalyst from the diamond table surface up to a specific depth (e.g., 100–300 microns). Since cobalt expands faster than diamond under high friction heat, removing it prevents thermal degradation (delamination).

Recommendation: Request leached PDC cutters for high-speed motor drilling, hard abrasive sandstone, or deep oil & gas and geothermal operations where bottom-hole temperatures exceed 250°C.

Yes. We manufacture ridge, axe-shaped, spherical, and conical PDC cutters. Non-planar geometry concentrates point-loading force, increasing rock-crushing efficiency in tough, high-strength formations while reducing overall weight-on-bit (WOB) requirements and vibration.

If you experience premature chipping, we evaluate two parameters:

• Impact Micro-cracking: We increase the diamond table thickness and adjust the transition layer gradient to absorb higher impact loads.
• Thermal Wear: We apply deep leaching or alter the diamond grain size distribution (coarse/fine mix) to optimize thermal stability.
• Chamfer Customization: Modifying the cutting edge chamfer (e.g., changing from 0.3mm to 0.5mm at 45°) significantly enhances edge toughness in rocky stringers.

Brazing temperature should be strictly controlled below 750°C (1382°F) to prevent thermal damage to the diamond layer. We recommend using high-silver content brazing alloys (e.g., 45%–50% Ag) with induction or torch heating, keeping flame exposure to the diamond face as brief as possible.

Yes. Our cutters feature precise outer diameter (OD) grinding tolerances (±0.02mm or tighter) and standard carbide substrate surface treatments, making them fully compatible with OEM and independent drill bit repair shops worldwide.

Every production batch undergoes 100% inspection including:

• C-Scan Ultrasonic Testing (UT): To detect internal voids, delamination, or micro-flaws at the diamond-carbide interface.
• Vertical Turret Lathe (VTL) Test: Evaluates wear resistance by cutting granite blocks under constant loads.
• Drop-Tower Impact Test: Measures energy tolerance (Joules) before edge chipping occurs.
• Dimension & Chamfer Scanning: Optical measurement of OD, height, chamfer angle, and surface flatness.

Yes. Each order comes with an Official Inspection Certificate, including dimensional scan results, batch-specific VTL wear data, and Ultrasonic C-Scan defect reports upon request.

Yes. We support bit OEMs and drilling contractors with sample packs (typically 20–50 pcs) for field performance evaluation against your existing benchmarks. Contact our engineering team to discuss target rock formations and specify your required cutter grade.

• Standard Stock Items (e.g., 1913, 1613, 1308 flat cutters): Ready to ship within 3–5 business days. MOQ is 50 pcs.
• Custom Geometries / Leached Cutters: 2–3 weeks lead time depending on order size. MOQ is 200 pcs.

We partner with DHL, FedEx, and UPS Express for urgent door-to-door delivery (3–5 days globally). For bulk commercial orders, we offer air freight and sea freight under FOB, CIF, or DAP Incoterms.

Absoloutely. We support custom OEM/ODM specifications including special substrate chamfers, specific diamond layer thicknesses, custom outer diameter tolerances, and non-standard shapes. Non-disclosure agreements (NDAs) can be executed before receiving your drawings.