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?