Technical data
Air pressure, max. ................................. 7 bar
Air requirement (at 6 bar)
off-load ............................................. 50 l/s
on-load ............................................. 42 l/s
Water pressure, max. .......................... 4.5 bar
Speed, max. ............................... 17 000 r/min
Hose sizes
air ...................................... 12.5 mm (1/2")
water ................................... 6.3 mm (1/4")
Weight excluding hoses ...................... 2.8 kg
Sound pressure level * .................... 91 dB(A)
Sound power level ** ................... 104 dB(A)
Vibration level *** ............ less than 2.5 m/s
Ordering No. ......................................... 9542
*
Measuring of sound pressure level
according to PN8NTC1.2, spread in
measuring method and production
3 dB(A)
** Measuring of sound power level
according to PN8NTC1.2, spread in
measuring method and production
3 dB(A)
*** Measuring of vibration according to
EN/ISO 8662
Accessories delivered
with machine
Allen key (2 mm) ......................... 9500-2736
Allen key (3 mm) ......................... 9500-2737
Allen key (5 mm) ......................... 9500-2738
Grease gun .................................... 9500-2739
Seal kit .......................................... 9500-2779
Support ring .................................. 9500-2781
Seat ............................................... 9500-2780
Adjustable angle connector .......... 9500-2795
Pipe (L=0.3 m) ............................. 9500-2785
Hose clamp (26–38 mm) .............. 9500-2720
Hose (PVC 03) ............................. 9500-2791
Nipple ........................................... 9500-2743
Hose clamp (7–8.5 mm) ............... 9500-2716
Hose (PVC, 0.1 m) ....................... 9500-2746
Claw coupling (6.3 mm, 1/4") ...... 9500-0068
Hose clamp (11–13 mm) .............. 9500-2717
Operator's Manual ............................ S-95158
Spare parts list .................................. S-95149
CAUTION
Always observe all safety regula-
tions and instructions.
Do not connect the grinding
machine to air pressures higher than
7 bar.
Check that the compressed-air
hose is connected to the machine
correctly. If not, the hose can come
General
The Grind Matic HG is an air-powered
grinding machine for button bits. The
grinding cup can be cooled with either
air or water.
The specially composed grinding
medium in the grinding cups contributes
greatly to the rapid material-removal rate
of the machine. With the Grind Matic
HG, you can grind all kinds of button bit,
from tapered bits and threaded bits to
large DTH drill bits.
There is a wide range of grinding cups
2
for the machine to suit different button
sizes and shapes.
Since the machine has a relatively low
air consumption, it is possible to grind
drill bits on the rig while drilling is in
progress.
Applications
The Grind Matic HG is intended for
grinding button bits only.
Technical description
Part No.
The Grind Matic HG is part of a com-
plete hand-grinding system consisting of
the grinding machine, grinding cup with
grinding medium and a specially de-
signed chuck.
The stainless-steel grinding cups are
manufactured using a method that gives
very good precision. The cups are fitted
with a rubber bushing which serves to
reduce the vibrations that can be trans-
mitted from the grinding cup to the
grinding machine.
The ergonomically positioned handles on
the grinding machine give the operator a
better working position and better
control of the machine throughout the
grinding operation.
The patented chuck has been specially
designed for quick and easy changing of
the grinding cup.
loose and whip around dangerously,
with the risk of injury to personnel.
Before removing or fitting a
grinding cup, always vent and dis-
connect the incoming compressed-
air hose.
The grinding cup must be ap-
proved for the maximum permiss-
ible speed of the grinding machine.
The Grind Matic HG is intended for a
working air pressure of 6–7 bar. This
pressure must never be exceeded.
General care
instructions
The machine must always be powered by
lubricated compressed air, which
increases the service life of the machine.
If the air supply is not lubricated,
connect a lubricator (available as an
accessory) into the handle of the ma-
chine.
clean and dry.
correct sizes (see "Technical data").
before connecting it to the machine.
hose to the machine.
Follow the lubricating instructions
carefully.
long time, make sure that it is generously
lubricated before storage.
to another workplace, always disconnect
the compressed-air hose.
Changing the
grinding cup and
chuck
Before fitting the grinding cup, smear the
shaft of the cup with a rust-inhibiting
agent such as Shell Ensis Compound 356
or similar.
5
Keep the machine clean.
Make sure that the compressed air is
Make sure that the hoses are of the
Always blow clean the air hose
Take care when connecting the air
Lubricate the machine regularly.
If the machine is to be left idle for a
Before moving the grinding machine
English