MODEL
(SIZE)

JT490
(22")

JT510
(23")

JT520
(24")

JT610
(26")

JT640
(28")

JT700
(32")

JT800
(36")

JT900
(40")

SHANK TYPE

SD18

NUMA240

NUMA240

NUMA240

JT610

JT640

JT700

JT800

JT900

HOLE DIA.

584~737mm
(22.99"~29")

590~864mm
(23.2"~34")

610~864mm
(24"~34")

HAMMER O.D.

490mm
(19.3")

510mm
(20.08")

520mm
(20.5")

610mm
(24.0")

640mm
(25.1")

700mm
(27.6")

800mm
(31.4")

900mm
(35.4")

PISTON WEIGHT

324.3kg(NUMA240)
327.22kg(SD18)

413.04kg

413.04kg

450kg

680kg

880kg

1,060kg

1,315kg

CYLINDER BORE

354mm
(13.93")

384mm
(15.11")

384mm
(15.11")

405mm
(15.95")

470mm
(18.48")

540mm
(21.26")

600mm
(23.60")

650mm
(25.57")

LENGTH
(Shoulder to Shoulder)

1,859mm(NUMA240) 1,898mm(SD18)

1,989mm
(78.3")

1,989mm
(78.3")

2,078mm
(81.8")

1,970mm
(77.5")

2,172mm
(85.5")

2,322mm
(91.34")

2,200mm
(86.54")

WEIGHT

2,158.6kg(NUMA240)
2,268.38kg(SD18)

2,358.53kg
(5,199lb)

2,479.53kg
(5,466lb)

3,850kg
(8,488lb)

4,000kg
(8,818lb)

5,070kg
(11,177lb)

6,800kg
(14,991lb)

6,950kg
(15,308lb)

TOP SUB
CONNECTION

8-5/8" API
REG BOX
(HEXAGON 240H)

8-5/8" API
REG BOX (HEXAGON 240H)

8-5/8" API
REG BOX
(HEXAGON 240H)

HEXAGON
240H

HEXAGON
240H

HEXAGON
240H

HEXAGON
240H

HEXAGON
300H

AIR CONSUMPTION, CFM(M³/MIN)

100PSI(6.8BAR)

1,320(37.4)

1,900(53.8)

1,900(53.8)

2,200(62.3)

2,300(65)

3,100(87.8)

3,600(101.8)

3,640(103)

150PSI(10.3BAR)

1,950(55.2)

2,800(79.3)

2,800(79.3)

3,100(87.8)

3,400(96.2)

 4,500(127.4)

 5,330(151)

 5,330(151)

200PSI(13.8BAR)

2,730(77.3)

4,000(113.3)

4,000(113.3)

 4,500(127.4)

 4,800(135.8)

 6,300(178.4)

6,500(184)

7,490(212)

250PSI(17.2BAR)

3,460(98.0)

.

300PSI(20.7BAR)

.

6,830(193.2).

.

350PSI(24.1BAR)

.

7,850(222).