|
Model no. |
ZJ70/4500L |
ZJ70/4500LDB |
ZJ70/4500D |
ZJ70/4500DB |
|
Driven type |
mechanical driven |
combination driven |
DC-SCR driven |
AC-VFD driven |
|
Nominal drilling depth(114mm drill pipe) m |
4500-7000 |
4500-7000 |
4500-7000 |
4500-7000 |
|
Max.hook load KN |
4500 |
4500 |
4500 |
4500 |
|
Max. number of line of travelling system |
12 |
12 |
12 |
12 |
|
Nominal dia. Of drilling line mm(in) |
38(1 1/2) |
38 (1 1/2) |
38 (1 1/2) |
38 (1 1/2) |
|
Dia. Of sheaves of travelling system mm(in) |
1524 (60) |
1524 (60) |
1524 (60) |
1524 (60) |
|
Internal dia. Of swivel centre pipe mm(in) |
75 (3) |
75 (3) |
75 (3) |
75 (3) |
|
Drawworks power rating kW(hp) |
1470(2000) |
1470 (2000) |
1470 (2000) |
1470 (2000) |
|
Shift number of drawworks |
6 forward 2 reverse |
4 forward 2 reverse |
4 forward 4 reverse |
1 stepless variable |
|
Rotary opening mm(in) |
952.5 (37 1/2) |
952.5 (37 1/2) |
952.5 (37 1/2) |
952.5 (37 1/2) |
|
Shift number of rotary table |
6 forward 2 reverse |
1 / 2 stepless variable |
2 forward 2 reverse |
1 / 2 stepless variable |
|
Rated power for each mud pump kW(hp) |
1176 (1600) |
1176 (1600) |
1176 (1600) |
1176 (1600) |
|
Mast clear height m(ft) |
45 (147) |
45 (147) |
45 (147) |
45 (147) |
|
Height of substructure floor m(ft) |
9(29.5) |
9(29.5) |
9(29.5)/10.5(35) |
9(29.5)/10.5(35) |
|
Drilling floor clear height m(ft) |
7.7(25) |
7.7(25) |
7.42 (24.5)/8.92(29.2) |
7.42(24.5)/8.92(29.2) |
