NPK GH2 - HAMMER SPECIFICATIONS

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HAMMER SPECIFICATIONS
TOOL WORKING
WEIGHT
MOUNTING
STYLE
DIA WORKING
HAMMER
MODEL
IMPACT
ENERGY
CLASS
FREQUENCY
LENGTH
ft lb bpm lbs (Kg) in (mm) in (mm)
GH06 150 480 – 1200 500 (225) Skid Steer 1.7 (42) 12.2 (311)
235 (107) Excavator
GH07 200 500 – 1200 550 (250) Skid Steer 1.9 (47) 13.1 (333)
270 (125) Excavator
GH1 350 550 – 1100 750 (340) Skid Steer 2.2 (57) 13.6 (346)
450 (205) Excavator
GH2 / GHS2 500 500 – 1300 800 (365) Skid Steer 2.6 (66) 14.4 (367)
525 (240) Excavator
GH3 750 500 – 1150 1075 (490) Skid Steer 3.0 (76) 16.1 (408)
800 (365) Excavator
GH4 1300 400 – 1050 1250 (570) Excavator 3.4 (86) 18.0 (458)
GH6 2000 500 – 800 2150 (980) Excavator 4.2 (106) 20.0 (500)
GAS CHARGE
PRESSURE
5
OIL FLOW HYDRAULIC
OPERATING
PRESSURE
1
CIRCUIT
RELIEF
minimum
2
Cold
3
Hot
4
HAMMER
MODEL
gpm (L/min) psi (bar) psi (bar) psi (bar) psi (bar)
GH06 2.5 – 7 (10 – 25) 1650 (115) 2150 (150) 350 (24) 405 (28)
GH07 4 – 9 (15 – 35) 1500 (105) 2000 (140) 350 (24) 405 (28)
GH1 7 – 13 (25 – 50) 1750 (120) 2250 (155) 350 (24) 405 (28)
GH2 / GHS2 7 – 17 (25 – 65) 2250 (160) 2750 (190) 350 (24) 405 (28)
GH3 12 – 26 (45 – 100) 1900 (130) 2400 (165) 350 (24) 405 (28)
GH4 13 – 32 (50 – 120) 2200 (150) 2700 (185) 375 (26) 435 (30)
GH6 24 – 40 (90 – 150) 2400 (165) 2900 (200) 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 Service 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. Pressures listed are maximum. Use tolerance of minus 25 psi (2 bar).