Beijing Guangying Construction Machinery Co.,Ltd
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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(HJ), rubber sealed(HA), not sealed(W)
5) Color: blue, golden or as customers' requirement.
6) Formation: soft, soft to medium hard, medium hard, hard, very hard
TRICONE BIT SPECIFICATION
|
BIT TYPE |
IADC CODE |
SUITABLE FROMATION |
WEIGHT ON BIT(KN/MM) |
ROTARY SPEED(R/MIN) |
|
DZ117 |
117 |
Low compressive strength, very aggressive and very soft formation:soft shale,clay,salina stone |
0.3-0.9 |
300~80 |
|
DZ127 |
127 |
Low compressive strength, very aggressive and very soft formation: shale,clay,soft limestone |
0.3-0.9 |
300~80 |
|
DZ217 |
217 |
Higher compressive strength, medium formation with interlayer: hard shale, sandstone, limestone |
0.35-0.9 |
300~80 |
|
DZ325 |
325 |
Higher compressive strength, medium formation with interlayer: hard shale, sandstone, gyprock |
0.35-0.9 |
290~70 |
|
DZ437 |
437 |
soft formations with low compressive strength and high drillability, clay,mudstone, salt, soft shale |
0.35-0.9 |
280~60 |
|
DZ517 |
517 |
Soft to medium formations with high compressive strength, such as hard shale, limestone, sandstone, |
0.35-1.05 |
240~50 |
|
DZ537 |
537 |
Soft to medium formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite |
0.5-1.05 |
220~40 |
|
DZ617 |
617 |
Medium hard formation with high compressive strength, such as hard shale, limestone, sandstone, dolomite |
0.5-1.140 |
220~40 |
|
DZ637 |
637 |
Hard formation with high compressive strength, such as limestone, sandstone, dolomite, hard gypsum, marble |
0.5-1.140 |
200~40 |