Steel tooth ,milled tooth single cutter
TCI single cutter
Factory prices!
1) Type: milled tooth bit and TCI bit
2) Size: 3”--26” (76mm--660.4mm)
3) IADC: standard IADC including 111 to 737
4) Bearing sealed: metal sealed(FJ), rubber sealed(FR), not sealed
5) Color: blue, golden or as customers' requirement.
6) Formation: soft, soft to medium hard, medium hard, hard, very hard
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IADC
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WOB(KN/mm)
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RPM(r/min)
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Applicable Formations
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527
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0.3-0.7
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120-50
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Soft formation with low compressive strength and high drillability,such as mudstone,gypsum,salt,soft shale,soft limestone,etc
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547
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0.3-0.7
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100-50
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Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium for formation with harder and abrasiver interbeds,etc.
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617
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0.4-0.8
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90-50
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Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,etc.
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It is suitable for sidetracking,deep well drilling and old well repairing.
1 Two watercourse can improve washing endurance and prevent mud.
2 Silver-plated at sliding surfaces of cone bearing to strength self-lubricating effect,and improve the bearing of wear-resisting life.
3 The bit inlaid with diamond compact teeth can be more effectively improve working life.
4 Two advanced high-saturated buna-N rubber seal rings are used for journal and bearing pin sealing,which ensured the high reliability of the bearing seal structure.
5 The bearing is improved by applying hard facing layer on head bearing surface,extended working life.
Recommended operating parameters
WOB 90 ~ 280(KN)
Ideal WOB range 150~220(KN)
Rotary speed 80 ~ 300 (rpm)
Ideal Rotary speed range 110~250(rpm)
