Model

JC40D

JC50D

JC70D

JC90D

Range of drilling depth

Φ114mm stem

2500-4000

3000-5000

4500-7000

6000-9000

Φ127mm stem

2000-3200

2800-4500

4000-6000

5000-8000

Rated power  kW(hp)

735(1000)

1100(1500)

1470(2000)

2210(3000)

No.*rated power of motor

2*580

2*800

2*800

3*800

Rated speed of motor r/min

880/970

970

970

970

Dia. of wire line mm(in)

32(1 1/4)

35(1 3/8)

38(1 1/2)

45(1 3/4)

Max. pull of fast line  kN

275

340

485

630

Drum(dia*width) mm(in)

Band brake

640*1235

(25 1/4*48 1/2)

640*1235

(27*49)

770*1439

(30*56 5/8)

914*1556

(36*61 1/4)

Brake (dia*width)  mm(in)

1168*265

(46*10 1/2)

1270*267

(50*10 1/2)

1370*267

(54*10 1/2)

1575*264

(62*10 3/8)

Drum(dia*width) mm(in)

Disc brake

640*1139

(25 1/4*44 7/8)

685*1138

(27*44 7/8)

770*1361

(30*53 5/8)

914*1556

(36*61 1/4)

Brake disc(dia*width)  mm(in)

1500*40

(59*1 1/2)

1600*76(63*3)

1600*76(63*3)

1600*76(63*3)

Sandline drum(dia*length) mm(in)

356*1245

(14*49)

356*1245

(14*49)

356*1245

(14*49)

356*1448

(14*57)

Auxiliary brake

DS40

DS50

DS70

DS90