Product Profile :
Using high strength and high wear resistance hard alloy teeth, improve the strength of the tooth and wear resistance. The new rolling bearing structure, greatly extended the bearing the working life, is under high pressure and high speed drilling to ability. Thrust bearing using high hardness and high wear resistance materials, further improve the bearing life.
Product use and applicable range
Use: this product is used for air drilling, such as open coal mine, iron ore, nonferrous metal development and oil drilling air.
Application: this product is used for high compressive strength, hard and grinding in sex strong strata, such as: limestone, sandstone, dolomite, flint, etc.
Product parameter | ||||
IADC Code | K635 | Cutting structure | Within the top row row miscalculates and cone ball had the tooth: row: Wedge-shaped teeth | |
Diameter | 9 7/8 inch (250mm) | Connecting thread : | 6 5/8''REG(API) | |
Bearing form | roller ball- -thrust block of roller | weight | 59kg | |
Drilling pressure | 35000-65000Ibs | Speed | 50-110 RPM | |
