Rotary Drilling Rig Tools Core Barrel with Roller Bits in Construction

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Technical Parameter of Kellyway core barrel with roller bits

Diameter D(mm)	Height H(mm)	Thickness T(mm)	Reinforcing Ring Height H(mm)	Reinforcing Ring Thickness T1 (mm)	Roller Bit Number	Weight （kgs）
600	1200	20	250	20	4	549
800	1200	20	250	20	6	744
1200	1200	20	250	20	10	1187
1500	1200	20	250	20	12	1582
1800	1000	20	250	20	16	1906
2000	800	20	250	20	18	1941
2500	800	25	250	20	20	2800