NPK E Series - Hammer Specifications

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HAMMER SPECIFICATIONS
HAMMER
IMPACT
FREQUENCY
MOUNTING
WORKING
TOOL
MODEL
ENERGY
STYLE
WEIGHT
DIA.
WORKING
CLASS
LENGTH
ft. lb.
bpm
lbs.
(kg)
in.
(mm)
in.
(mm)
E200
150
480 - 1,200
Excavator
500
(225)
1.65
(42)
12.2
(311)
Skid Steer
235
(107)
E201
200
500 - 1,200
Excavator
270
(125)
1.85
(47)
13.1
(333)
Skid Steer
550
(250)
E202
350
600 - 1,200
Excavator
425
(195)
2.24
(57)
13.6
(346)
Skid Steer
725
(330)
E203
750
560 - 1,200
Excavator
525
(240)
2.60
(66)
14.4
(367)
Skid Steer
800
(365)
E204
1300
530 - 1,200
Excavator
800
(365)
2.99
(76)
16.1
(408)
Skid Steer
1,075
(490)
Backhoe
800
(365)
E205
1,300
430 - 1,050
Excavator
1,200
(545)
3.39
(86)
18.0
(458)
Backhoe
1,150
(520)
E207
2,000
500 - 840
Excavator
2,100
(955)
4.17
(106)
19.6
(500)
Backhoe
1,850
(840)
HAMMER
OIL FLOW
HYDRAULIC OPERATING
MINIMUM CIRCUIT
MODEL
PRESSURE1
RELIEF2
gpm
(lpm)
psi
(bar)
psi
(bar)
E200
2.5 - 7
(10 - 25)
1,650
(115)
2,150
(150)
E201
4 - 9
(15 - 35)
1,500
(105)
2,000
(140)
E202
7 - 13
(25 - 50)
1,750
(120)
2,250
(155)
E203
8 - 17
(30 - 65)
1,900
(130)
2,400
(165)
E204
12 - 26
(45 - 100)
1,900
(130)
2,400
(165)
E205
13 - 32
(50 - 120)
2,400
(165)
2,900
(200)
E207
24 - 40
(90 - 150)
2,400
(165)
2,900
(200)
NITROGEN GAS PRE-CHARGE
HAMMER
AT AMBIENT TEMPERATURE
(cold before operating)
AT OPERATING TEMPERATURE (hot,
after 1 to 2 hrs. operation)
MODEL
psi
(bar)
psi
(bar)
E200
350
(24)
405
(28)
E201
350
(24)
405
(28)
E202
350
(24)
405
(28)
E203
350
(24)
405
(28)
E204
350
(24)
405
(28)
E205
375
(26)
435
(30)
E207
390
(27)
450
(31)
* Specifications subject to change without notice.
NOTES:
1. Hydraulic operating pressure maximum is inlet pressure at the hammer with the oil at operating
temperature and with the gas charge set at the hot operating pressure. See “CHECKING THE
HYDRAULIC PRESSURES” section in this manual.
2. Circuit relief pressure is at least 500 psi (35 bar) above hammer operating pressure.
3. Cold gas charge is the initial set with the hammer at ambient temperature.
4. Hot gas charge is checked after 1 to 2 hours of running and with a system oil temperature of 140
to 180F (60  to 80  C). This is the preferred check.
5. Gas pressures listed are the maximum allowed. Use tolerance of plus 0, minus 25 psi (2 bar).