8 1/2 UR617Y Single cone bit

single cone bit for drilling rig is a high-performance drilling tool designed for efficient rock breaking in oil and gas exploration, mining, water well drilling, and foundation engineering. It features a single rotating cone equipped with tungsten carbide inserts or steel teeth, allowing it to crush and shear different formations from soft soil to hard rock. The bit body is made of high-strength alloy steel with advanced heat treatment, ensuring excellent wear resistance and impact toughness. Its optimized bearing structure provides smooth rotation, reduced friction, and stable performance under heavy load conditions. The hydraulic design improves cuttings removal, prevents bit clogging, and enhances overall drilling efficiency in deep and complex boreholes.

In application, the single cone bit for drilling rig is suitable for hard rock drilling, directional drilling, and mixed formation environments. It performs reliably in interbedded strata where soft and hard layers alternate, maintaining steady penetration speed and reducing downtime. The cutting structure can be customized according to geological conditions, including milled teeth for soft formations and carbide inserts for hard formations. Key advantages include high drilling efficiency, long service life, strong impact resistance, and reduced operational cost due to fewer replacements. It is compatible with a wide range of drilling rigs, making it a versatile and cost-effective solution for global drilling projects.

Special Feature

IADC Code: 6-1-7

Bearing: Joumal bearing

Sealing: Flat composite ring

Cutting structure: Conical

Rows/Qty: 7/52

ShirttaiVLug Welding carbide & adding inserts

Application

Medium, breezed granite, limestone, dolomite, graveletc.

Medium and high compressive strength formation, strong homogeneity, medium and low abrasive formation.

Compressive strength: 50~130MPa

Crashing rock width114~118mm

Recommend pull-down

Pull-down on the Cylinder: 20--30T(maximum pull-down on every single cone bit: 5-6T)