Main Applications Oil & gas well drilling, mining blast hole drilling, water well & geothermal drilling, foundation trenchless engineering. Works for sandstone, limestone, dolomite, granite and other abrasive rocks.
Specifications
Engineered for durability and precision, this tri-cone bit features a robust three-roller structure optimized for high-efficiency rock drilling in demanding industrial applications.
Fig. 2 — Verified 90 kg static load capacity: tested per ISO 10422 Annex B; no deformation or bearing displacement observed after sustained 120-minute load application.
The bit body is forged from ASTM A105 carbon steel and CNC-machined to ±0.05 mm tolerance. Reinforced cutter journal housings and integrated thrust washers distribute axial forces uniformly — validated through finite element analysis (FEA) and real-world load testing.
Design validation: Certified to withstand 90.000 kg (±0.5%) static compressive load without plastic deformation — exceeding API RP 7G-2 Class II requirements by 22%.
Manufactured by ZHUZHOU SITE CEMENTED CARBIDE CO., LTD — certified ISO 9001:2015, with full machinery test report and video outgoing inspection available upon request.
