Dia:520-3000mm
Materials: Q355B
Kelly box: 130/150/200/250mm
Wear protection: Hard facing or wear strips
Application：Core barrel equipped with roller cutter bits, generally used to cut very hard fractured,hard rock formation with compressive strength up to 200MPa
Features：
Shell height: as customers request, for example increased to 1500/2000mm, to increase the drilling volume and the work efficiency.
Teeth: B47K22 or B40K12 or upon request.
Wear protection: Hard facing-Wear strip-Betek Stungstuds upon request
Structure: Cutting ring with tungsten roller bits welded into the based ring of core barrel. Single roller bit c/w bearing and carbide insert IADC 637/737- DIAM 8.5 inch.
Parameters
Workshop & Producing line
Welding details
Quality control
Package & Delivery
What we suppply?
Get the professional solution of customized Casing pipe,Kelly bar,Drilling tools,Used drilling rig, we believe the Guaranteed quality at Reasonable price win us a long cooperation.
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