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Core barrel with roller bit


Core barrel with roller bit 

Applicable for strong rock up to 100MPa or Rock with deep cracks Applicable for very strong rock formations with compressive strength grater than 100MPa

Diameter from 600mm to 3000mm. Better use it with big torque rotary drilling rig, Such as over Bauer BG28, Liebheer LB26, Sany SR250 etc. 

11 pcs of vore barrel with rollet bit are sending out from Unimate changsha factory.