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Linishing machine
with unlimited applications.
The head rotates in seconds
on this multi-purpose unit
.

Radius Master Tools

Radius Master 48

The Radius Master 48 is a multi-station belt grinding machine designed for engineers, tool and die makers, knife makers, sheet metal workers, foundries and general manufacturers of metal, wood and plastic products.

  • suitable for all metals, wood or plastic
  • five workstations for grinding flat, square, external and internal curves
  • five contact wheels 200mm (8"), 90mm (3 1/2"), 38mm (1 1/2"), 25mm (1") and 19mm (3/4")
  • head rotates in seconds
  • ideal for all industries
  • high performance, convenience, long life
  • small wheel performance is 12-19 times faster then cutting with a carbide burr
  • superior belt tracking allows the edge of the belt to grind into sharp corners - belt will not come off
  • easy to install - 240V single phase
  • powerful 1 1/2HP motor with integrated overload protection switch

RM48 part number

add VS for variable speed


Radius Master - Technical and order information
Photo
Type / Part No.
Motor 240V
Belt size mm
Belt speed m/sec
Shipping weight kg
RM 48
RM 48
1.5 kw, 2.0 HP
50 x 1220
15
45.9
RM 48 -VS
variable speed
50 x 1220
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.
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 (including commerical use) with the exception of normal wear on contact wheels.
A new machine with variable speed motor control is also available - please contact us for more information! The Part No for variable speed model is RM 48 - VS.
Radius Master
click to enlarge

Radius Master Multi Station Belt Grinder - Accessories
Photo
Type / Part No.
Description
rollers
RM 48-EP
Platen table for horizontal grinding against another platen.
Tilting stand
RM 48-ST
RM 48-ST
Tilting stand
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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5 work stations - changed rapidly

Photo Work stations Description
Notching and contouring on small contact wheels
Notching and contouring on small contact wheels
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 Master’s 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.
Flat grinding in vertical and horizontal position Flat grinding in vertical and horizontal position
Hollow grinding and smooth finishing Hollow grinding and smooth finishing
Facing, sharpening and square edging on quick release tilting table Facing, sharpening and square edging on quick release tilting table
Slack belt grinding for rounding and sharpening in horizontal and vertical positions. Slack belt grinding for rounding and sharpening in horizontal and vertical positions.
General contouring and finishing on 89mm contact wheel General contouring and finishing on 89mm contact wheel

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Exceptional belt tracking performance

Photo Description
Radius Master's belt tracking
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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Easy belt change
Photo Description
The belt change
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 Master’s 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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Extremely user friendly
Photo Description
Radius Master
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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Some examples of the hundreds of time saving uses of the Radius-Master Multi-station belt grinder:
Notch 3/4" pipe: 10 sec. ! Radius 50x6mm flat in 25 secs ! Notching 50x6mm flat in 15 secs ! Mitring 40x40mm in 25 secs

Notch pipe

Notching pipe
in 10 seconds

Radius flat steel

Radius
in 25 seconds

Notchin

Notching flat
in 15 seconds

Mitring

Mitring in
25 seconds

Picture / Dim.
Description
Application
Grit
Part-No.
Green Zirconia Belt

50 x 1220 mm

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Removal of deep scratches, scale, rust and welds. Use on all metals.

40
RG203/40
50
RG203/50
60
RG203/60
80
RG203/80
120
RG203/120
150
RG203/150
180
RG203/180
240
RG203/240
Blue Zirconia Belt

50 x 1220 mm
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Removal of deep scratches, scale, rust and welds. Use on all metals.
40
RB203/40
60
RB203/60
80
RB203/80
100
RB203/100
120
RB203/120
Ceramic Topcoat Belt

50 x 1220 mm


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Removal of deep scratches, scale, rust and welds. Use on all metals.

40
RT203/40
60
RT203/60
80
RT203/80
100
RT203/100
120
RT203/120
Trizact belts
Trizact™ Belt

50 x 1220 mm

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Very high material removal rate. Produces a very fine finish. Ideal for scratch removal. Pre-grinding stage before polishing to a mirror finish. Pyramid-shaped grit structure.
A100 / 220
A65 / 280
A45 / 400
A30 / 600
A16 / 1200
A06 / 2000


Grits: A06=2000; A16=1200; A30=600, A45=400; A65=280; A100=220 = Trizact™

 

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last updated 26.09.17