|
Model |
ZJ50DB |
ZJ50D |
ZJ50LDB |
ZJ50L |
|
|
Drilling depth (ft) |
41/2″DP |
16500 |
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|
5″DP |
15000 |
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|
Max hook load (lbf) |
708120 |
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|
Hook speed (ft/s) |
0～6 |
0～5 |
0.66～5 |
0.66～5 |
|
|
Mast effective height (ft) |
148 |
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|
Mast type |
K type |
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|
Drill floor height (ft) |
30 |
30 |
25/30 |
25 |
|
|
Substructure type |
Swing up |
Swing up / sling shot |
Swing up |
Box-on-box |
|
|
Engine type |
CAT3512B generator set |
CAT3512B generator set |
G12V190PZL-3 |
G12V190PZL-3 |
|
|
Engine power (hp × set) |
3×1757 |
3×1757 |
3×1086+1609 |
3×1086+1073 |
|
|
Drive ways |
VFD drive |
DC drive |
VFD drive +mechanical |
Hydraulic+ mechanical |
|
|
Transmission box model |
ZLQ50DB |
ZLQ50D |
Coupler YOZJ750 |
Coupler YOZJ750 |
|
|
Traveling system |
7×6 |
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|
Drawworks |
JC50DB |
JC50D |
JC50LDB |
JC50L |
|
|
Drawworks power (hp) |
1475 |
1475 |
1475 |
1475 |
|
|
Main brake |
Disc brake |
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|
Auxiliary brake |
Motor resistance brake |
DWS50 |
FDWS50 |
FDWS50 |
|
|
Drilling line diameter (in) |
1 3/8” |
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|
Hook block |
YC315、DG315 |
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|
Swivel |
SL450 |
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|
Rotary table |
ZP375 |
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|
Mud pump power (hp×set) |
1300×3 |
1600×2 |
1600×2 |
1600×2 |
|
|
Nominal working pressure of hydraulic system (psi) |
2000 |
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|
Max. working pressure of air system (psi) |
145 |
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