5
4
1
5
2
7
3
4
6
8
Technical data
Specifications
Tophammer
Universal
Max. distance between bit
holder and grinding wheel
230 mm
230 mm
Drill bit diameter
35 - 127 mm
35 - 165 mm
Max. grip size
n/a
110 mm (QL6,
COP66)
Min. distance between
buttons
3,5 mm
3,5 mm
Rec. Oil pressure, min-max
150-210 bar
150-210 bar
Oil consumption
12 l/min
15 l/min
Cooling liquid consumption
max 10 l/h
max 10 l/h
Voltage
+/- 24-28 VDC
+/- 24-28 VDC
Current
6 A
6 A
Speed, spindle
9 500 rpm
12 000 rpm
Weight
81 kg
85 kg
Sound pressure during
grinding*
85 dB (A)
85 dB (A)
Sound power level during
grinding**
95 dB (A
95 dB (A
Vibration level during
grinding***
< 2,5 m/s²
< 2,5 m/s²
Manufactured: Atlas Copco Secoroc, Fagersta, Sweden
* Equivalent continuous A-weighted sound pressure level mea-
sured at operator’s ear level during grinding. Possible spread due
to measuring method and production factors: 3 dB(A).
** Sound power level established in accordance with
EN 61029-1. Possible spread due to measuring method and
production factors: 3 dB(A). Average value for frequency range
100-6300 Hz.
*** Vibration measurement according to EN 61029-1.
General
The Secoroc GM RH grinding machine is fully hydraulic pow-
ered and designed to be attached to a drill rig. It grinds cement-
ed-carbide buttons and the surrounding body steel in the same
operation using a diamond-coated grinding wheel. The machine
has an automatic feeding device, which makes it simple to use.
Applications
The Secoroc GM RH is intended for grinding threaded and
tapered button bits up to 127 mm in diameter and DTH and CO-
PROD bits up to 165 mm, and has a high grinding capacity.
Technical description
The Secoroc GM RH consists principally of the following com-
ponent assemblies:
A rack with the guide and feed cylinder.
A grinding unit with the spindle and orbital rotation. The
control panel is mounted on the grinding unit.
Tophammer:
A clamping device for threaded and tapered
bits (only for Tophammer bits).
Universal:
A universal clamping device (for Tophammer-,
DTH- and COPROD bits).
A hydraulic valve unit.
A box with the electrical components.
A coolant pump with a coolant plastic can. Use water as cool-
ant medium. Add anti-freeze liquid (for example washer fluid) to
prevent freezing.
A local emergency stop.
- The emergency stop function does not deactivate the drill rig,
only the grinding machine.
- When resetting the grinding machine emergency stop, the or-
bital movement will continue to it’s starting position.
Controls and other parts
Ref.No.
Description
1
Pump
2
Water tank
3
Emergency stop
4
Start/stop knob
5
Timer
6
Centring button
7
Bit holder
8
Hydraulic unit
