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Technical specifications and parameters for Top Drive |
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Specification |
250Ton |
350Ton |
500Ton |
|
Nominal drilling depth (5 1/2" drill pipe) |
4,000m(13,000ft) |
5,000m(16,000ft) |
7,000m(23,000ft) |
|
Rated load capacities |
2,250KN(250t)) |
3,150KN(350t) |
4,500KN(500t) |
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Drilling torque (continuous, max.) |
32KN.m |
36KN.m |
54KN.m |
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Rotary speed |
0 - 180rpm |
0 - 180rpm |
0 - 220rpm |
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Rated power of AC induction motor |
315 KW x 1 |
350KW x 1 |
350KW x 2 |
|
Tilt angle of tilt arm ( max) |
Forth 30" Back 55" |
Forth 30" Back 55" |
Forth 30" Back 55" |
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Maximum torque of break out |
50KN.m |
65KN.m |
80KN.m |
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Working pressure of hydraulic system |
16MPa |
16MPa |
16MPa |
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Input voltage of driving cabinet |
600VAC |
600VAC |
600VAC |
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Range of variable frequency |
Rated 0 - 121Hz |
Rated 0 - 121Hz |
Rated 0 - 121Hz |
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Shift gears range of motor |
0 - 2,400rpm |
0 - 2,400rpm |
0 - 2,400rpm |
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Drill pipe range |
2 7/8" - 5 1/2" |
2 7/8" - 5 1/2" |
2 7/8" - 5 1/2" |
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Alarm Temperature of motor |
|
220degree |
220degree |
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Alarm Temperature of gear oil |
|
75degree |
75degree |
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Alarm Temperature of hydraulic oil |
|
75degree |
75degree |
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Transmission ratio |
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12.8:1 |
10.4:1 |
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Shift gears range of motor |
0 - 2,400rpm |
0 - 2,400rpm |
0 - 2,400rpm |
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Drill pipe range |
2 7/8" - 5 1/2" |
2 7/8" - 5 1/2" |
2 7/8" - 5 1/2" |
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Alarm Temperature of motor |
|
220degree |
220degree |
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Alarm Temperature of gear oil |
|
75degree |
75degree |
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Alarm Temperature of hydraulic oil |
|
75degree |
75degree |
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Transmission ratio |
|
12.8:1 |
10.4:1 |
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