Model |
JC20 |
JC30 |
JC30DB |
JC40 |
JC40D |
Nominal drilling depth (5"DP) m |
2000 |
3000 |
3000 |
4000 |
4000 |
Max. input power kW |
400 |
560 |
450 |
735 |
735 |
Max. fastline pull kN |
200 |
200 |
200 |
280 |
275 |
Nominal dia. of drill line mm |
19 |
29 |
29 |
32 |
32 |
Drum size(dia.*width) mm |
457*1000 |
508*1178 |
508*1182 |
640*1139 |
640*1139 |
Sand drum size(dia.*width) mm |
|
|
|
|
|
accommodate capacity of sand drum m |
|
|
|
|
|
gears for hoisting speed |
2 |
4+2R |
1 |
4+2R |
2 |
gears for rotary speed |
1 |
|
1 |
|
1 |
Main brake |
|
band brake |
Hyd.disk brake |
Band brake |
Hyd.disk brake PSZ65 |
Hyd.disk brake |
dynamic brake |
Hyd. Disk brake |
Assistant brake |
|
FDWS30 |
|
DWS40L |
DSF40D |
Control for speed and function |
|
|
AC VFD control, dynamic brake |
|
|
Emergency brake and manual control |
band brake |
|
Hyd. disk brake |
|
|
