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12 1/4 CHJ637LY

12 1/4 CHJ637LY is part of Single Roller Cone Bit,Shareate' S horizontal directional drilling products have formed a variety of series, including tricone bits, reamers and trenchless bits.

PRODUCT SPECIFICATION

CUTTING STRUCTURE
Spherical on outer rows, conical on inner rows.
Designed for high compressive strength, medium hard and abrasive formations, such as hard shale, limestone, sandstone, dolomite, coal seam, etc.
Compressive strength: 23,000-30,000 psi
SHIRTTAIL PROTECTION
Hard welding and wear resistant carbide protection on shirttail and lug back.
PRODUCT SPECIFICATION
IADC Code:  637
Bearing Type: Journal bearing/Metal sealing ring
Circulation Type: Mud
Cutting Structure:
Inner rows: Conical
Outer rows: Spherical
Gage bevel Protection: Ovoid
Pin Connection:  6 5/8″ API REG
Bit Diameter: 311.15(0.8-0)mm
Product Weight:  98Kg
OPERATING SUGGESTIONS
Weight on Bit:  0.7--1.2 kN/mm
Rotational Speed: 70-40 rpm

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Another exciting news from our new territory in Africa, Shareate 12-1/4"(311mm) SGV545R did a good job in a Diamond Mine of Botswana market, the rock

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