3
2
SPECIFICATIONS
2.1
INTRODUCTION
Your Reimann & Georger Corporation Hydraulic Rock Drill is designed for drilling blast holes and test drillings etc. in
granite and concretes. A built in torque limiter ensures that the operator can always hold the Rock Drill, if the drill bit gets
stuck. As with most hydraulic tools, the hydraulic system requirements detailed in the following section must be met but
not exceeded to support tool performance and longevity of equipment.
2.2
TECHNICAL DATA
ENGLISH
METRIC
Weight with hose whips and without tool steel
57 lbs.
(26 kg.)
Overall Size
17-7/8 x 23-5/8 in.
(455 x 600 mm)
Oil flow
5.3 – 6.6 gpm
(20-25 lpm)
Oil pressure range
1450-2000 psi
(100-140 bar)
Maximum back pressure in return line
215 psi
(15 bar)
Steel size (hex)
7/8 X 4- 1/4 in.
(22 X 108 mm)
Drill diameter
63/64 – 1-31/32 in.
(25 - 50 mm)
Hollow drill ( ISO series 11-17 )
Maximum drill depth without compressed air
20 in.
(500 mm)
Maximum hollow drill depth (depending on material) 19.7ft.
(6 m)
Air flow requirements for drilling
Air flow
14 - 42 cfm
(0.4 – 1.2 cmm)
Pressure
72 – 145 psi
(5 – 10 bar)
Torque
48 lbft.
(65 Nm)
Revolutions (clockwise)
320-400 rpm
Accumulator charge pressure (nitrogen)
580 psi
(40 bar)
Required cooling capacity
7500 BTU/hr.
(2.2 kw)
Energy per impact
24-28 ft.-lb.
(32-38 joules)
Blow frequency (blows/minute)
2400 @ 5.3 gpm,3000 @ 6.6 gpm
(40-50 Hz)
Sound level (decibels)
98 dB
Couplings
1/2” HTMA flush face
2.3
RECOMMENDED HYDRAULIC OIL
Viscosity
100-200 SUS at 100
°
F
(20-40 cSt at 40
°
C)
Viscosity index
Minimum 100
Many types of compatible hydraulic oil are available through your local dealer/distributor. As an original equipment
manufacturer, RGC supplies a Grade ISO VG 32 hydraulic oil.
Hydraulic oil types are too numerous to list in this manual. If you have any question concerning the type of oil suitable for
rock drill operation, please consult your local supplier or Reimann & Georger Corporation for details.
