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RM 48
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1.1 kw
1 1/2 HP |
50 x 1220 |
15 |
33 |
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The Radius Master provides a multitude of uses selected
by using an easy to operate index knob. Instantly available is a
choice of contact wheel grinding, flat and edge grinding and slack
belt grinding
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Belt grinder supplied with dust proof switch and
3m lead and plug. Spark shields conveniently swivel in and out of
position for operator protection.
2 year warranty (incl.commerical use) with the exception of normal
wear on contact wheels.
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RM 48-T
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Larger tilting table and mitre
bracket |
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RM 48-EP |
Extended platen for knife tang
grinding |

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RM 48-ST |
Tilting stand |
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The versatility provided can be further expanded
to that of a bobbin grinder for accurate edge profiling. This facility
is available by laying the machine on its side using the optional
tilting stand and table.
Activated by a single clamp lever the machine is laid
over at 90° so that the belt travels on a horizontal plane.
The work table can then be attached adjacent to the
small wheel selection. A simple operation with no tools needed.
The table tilts up 20° and down 45°. It is
especially useful for knife makers, tool makers and pattern makers.
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Notching and contouring
on small contact wheels
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The five contact wheels are brought into position
by simply actuating an index knob and rotating in seconds to the
desired position.
The wheel diameters are ¾ (19mm), 1
(25mm), 1½ (38mm), 3½ (89mm) & 8
(203mm). All guards swivel out of position for easy access.
All wheels are precision ground, highest quality polyurethane.
Large wheels are 63 dia.,three small wheels are 83 dia. Wheels adjacent
to the platen remain in alignment when indexed.
The three small wheels are contained in a separate
revolving carriage at one of the stations and are indexed by the
smaller of the two knobs.
Note: Radius Masters design provides continuous
running of the small wheels.
The five work stations provide:
- Internal, external and hollow grinding on contact wheels
- Notch grinding and contouring on small contact wheels
- Flat grinding in vertical and horizontal position
- Edge grinding on tool rest (tilts up 20° and down 45°)
- Edge profiling an optional tilting stand and table.
- Slack belt grinding in horizontal and vertical positions.
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Flat grinding in
vertical and horizontal position |
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Hollow grinding and
smooth finishing |
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Facing, sharpening
and square edging on quick release tilting table |
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Slack belt grinding
for rounding and sharpening in horizontal and vertical positions. |
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General contouring
and finishing on 89mm contact wheel |

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Radius Master's belt tracking performance is exceptional.
The premium belts that use a heavy polyester backing are difficult
and sometimes impossible to track on other belt grinders. When pressure
is applied to the edge of the belt it normally slides sideways making
it impossible to grind a sharp corner.
Radius Master will track these belts with pin sharp accuracy
allowing not only sharp 90° corners to be ground but angles
down to 60°.
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The belt change is speedy and simple to operate.
It can take less than 4 seconds.
Push or pull the belt in any position between the wheels. The
tensioning mechanism retracts and a catch automatically holds
it in this position to give easy access for removal and replacement.
Accurate belt tracking and stability of the belt
when used near the edge can only be maintained when all of the moving
parts of the machine are rigidly held in position. Looseness of
as little as .004 (.1mm) has a drastic effect on belt tracking
performance.
Grinding grit will eventually partially or totally destroy the
performance of normal belt grinding machinery if left unchecked.
Radius Masters designer with over 30 years experience in
building belt grinding machinery has designed this machine to
survive under the harshest conditions maintaining its unique qualities,
no matter how old the machine.
WEAR-OUT PROOF DESIGN
The essential sliding and rotating mechanism components are separated
by a Teflon layer which removes metal to metal contact. The pivots
are adjustable stainless steel cones which ensure this rigid alignment
will always be maintained. Adjustment is simple and rarely, if
ever needed.
Positive location of the small wheels is guaranteed with the use
of a hardened and ground pin with a tapered end which slides in
a hardened and ground bush. All contact wheels have fully sealed
ball bearings.
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Radius Master has many user friendly features that
set it apart. No time is lost in dismantling and changing accessories.
In the case of semi-production work, time saved can be hours per
day. The guards covering the contact wheels are easy to engage and
disengage. The handle position can be adjusted on all clamp levers.
The ease of selection, belt change, belt tracking and its versatility
make using this machine a pleasant hands-on experience.
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