Cratex Rubber Abrasive Products
Applications | Grits and Abrasives
Cratex Rubber-bonded Abrasives are used in a widely diversified list of industries for
Light Deburring
Smoothing
Cleaning
Polishing
Basic
Applications
Light Deburring and smoothing to relieve stress concentrations
and to remove visible and microscopic burrs without impacting
surrounding areas.
Smoothing and polishing to improve wearing qualities and to reduce the dangers of progressive fracture and fatigue failure.
Cleaning and polishing to remove undesirable surface deposits.
Polishing and smoothing to improve performance, appearance, cleanliness and to lessen the dangers of surface contamination.
Typical
Applications Include:
Breaking edges, radiusing
and polishing out high spots, removing rust, cleaning threads,
smoothing the edges of punched or sheared metal, deflashing, smoothing
and polishing molds, dies and other production tools, sharpening
and honing of cutting dies, blades and edged tools, removing corrosion,
excess solder, heat marks, cleaning and polishing contact points,
jacks and electrodes, removing tool marks, scratches light burrs,
and fins, blending in welded seams after rough grinding, engine
turning, damaskeening, polishing engine ports, shafts, turbine
blades, smoothing glass edges, jewelry finishing, gem stone sanding
and many others.
Cratex Rubber-bonded Abrasives are used in a widely diversified list of industries, on production and assembly lines, in finishing operations, in tool and machine shops, in the production of basic tools, instruments, component parts and for maintenance and repairs.
Grit
Textures
Each Cratex size
and shape is made in four standard Grit Textures or compositions
which differ in accordance with the mesh size of the abrasive
grain used. [C] COARSE (Green) [M] MEDIUM
(Dark Brown) [F] FINE (Reddish Brown) [XF]
EXTRA FINE (Grey Green)
Cratex
Standard Bond
The Cratex bond common to each of the four Grit Textures is made
with premium grade oil-resistant chemical rubber. In contrast
to conventional grinding wheels the Cratex bond has unique cushioned
action...cuts freely, smoothly and softly without gouging or digging
into the work surface. It resists clogging or smearing, and is
ideal for a broad range of applications where metallic or non-metallic
surfaces must be smoothed and polished without loss of dimensional
tolerances or control.
Cratex
Abrasive Type
The abrasive type
used in Cratex Rubberized Abrasives is premium-quality Silicon
Carbide that has been washed, dried and treated to remove impurities
and then carefully screened to U.S. Department of Commerce standards
for size. Although silicon carbide is more expensive than other
abrasive materials, it is used because it has a high level of
purity and has been found to be best for the broadest range of
light deburring, smoothing, cleaning and polishing applications
on ferrous and non-ferrous alloys as well as many non-metallics,
such as glass.
Shapes
and Sizes
The Cratex Wheels,
Points, Cones, Blocks and Sticks listed are all available as standard
products. The occasional need for non-catalog shapes or compositions
can usually be solved by adapting or modifying standard shapes
and compositions to meet special requirements. Several wheels
can be mounted in series for added width. The abrasive action
of the wheels can be softened by using lower operating speeds
and lighter work pressures. Cratex Rubber Bonded Abrasives can
also be dressed or shaped to special contours using conventional
abrasive wheel dressing tools and methods.
When Ordering
Specify the part
number and grit texture. [C] Coarse,
[M] Medium, [F] Fine, [XF]
Extra Fine. For Example: CRA.54-C. Certain products are sold in
units of 1 and others in boxes of 100.
|
Cratex Blocks & Sticks
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Posessing the same superior qualities
as other Cratex products, Cratex Blocks and Sticks are excellent
hand tools for cleaning and polishing metal surfaces, for breaking
edges, smoothing away high spots, removing rust, heat marks,
tarnish and stains. Designed for either manual or mechanical
operation, they can be mounted in tool holding fixtures, chucks,
or cradles. Use them for polishing shafts...damaskeening...cleaning
and dressing diamond wheels...polishing rotating cylindrical
parts, cleaning calibrations and reference points, and for removing
feather edges and touching up cutting tools, dies, chisels and
other sharp edged tools.
|
Cratex
Cones
Cratex
Cone Mandrel - Part No. CRA.1341 Maximum Safe Speed is 20,000 Revolutions Per Minute. Best results are usually obtained at 30% to 80% of Maximum Safe Speed. Use a light work pressure. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cratex Cones are the best answer to many
difficult deburring, smoothing and polishing problems. They are
easily shaped to contour while being used or by using a Cratex
conventional dressing tool.They are ideal for cleaning and polishing
grooves, ball corners, flares, angles and other hard to reach
surfaces as well as for use on molds, dies, castings, combustion
chambers and ports, stainless steel tanks, shafts, turbine blades,
and many others.
Cratex Rubberized Abrasives Cones are
designed to fit Cratex Cone Mandrel No. 1341, 1/4" Shank.
Maximum Safe Speed 20,000 Revolutions Per Minute with 1/2"
overhang or less (exposed mandrel length). For each additional
1/4" of overhang the Maximum Safe Speed is decreased by
at least 20%.
Wheels
|
Cratex
Straight Wheels - Large Size
Cratex
Wheel Mandrel - Part No. CRA.1342 Cratex
Dressing Block - Part No. CRA.6404-2148 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cratex Large Wheels have found wide application
for removing rust, heat marks, tarnish, excess solder, scratches,
corrosion...blending in and polishing welded seams after rough
grinding...polishing bearing surfaces and raceways...removing
burrs and breaking edges...smoothing and polishing castings and
punched or sheared pieces...wet sanding of gem castings...wet
sanding of gem stones...trimming plastic articles...smoothing
glass edges...cleaning before welding or soldering...and for
countless other deburring, smoothing, and polishing operations.
Cratex Wheel Mandrel No. 1342 has a 1/4"
shank and is designed for 1/4" center hole wheels up to
3" diameter by 1/3" thick or less. The maximum safe
speeds listed above are for 1/2" overhang or less (exposed
mandrel length). For each additional 1/4" of overhang the
maximum safe speed is decreased by at least 20%.|
Cratex
Points
Cratex
Point Mandrels
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cratex Shaped points are made in both
cylinder and bullet shapes...for smoothing and polishing hard
to reach surfaces...grooves, ball corners, holes, clasps, spirals,
flutes, and edges. They are widely used for polishing molds,
dies, patterns and light castings; for cleaning contact points,
solder spots and for relieving stress, micro-deburring, and damaskeening.
|
Cratex
Small Wheels - Tapered Edge
Cratex
Small Wheels - Straight Edge
Cratex
Small Wheel Mandrels
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cratex Shaped wheels have a tapered edge
which makes them exceptionally versatile for fine work on small
and delicate parts...ideal for polishing, cleaning out and finishing
decorative and intricate designs
Crates Small Straight Wheels can be mounted
on conventional portable motor tools and used on a broad list
of deburring, smoothing and polishing applications. They can
be used on countless operations requiring absolute control of
metal removal such as in micro-deburring, relieving stress concentration
areas and polishing away fatigue lines, scratches and other surface
defects. Ideal for work on dies, molds, instruments, control
mechanisms, electronic parts, jewelry, aerospace components,
plastic articles, light castings, models, and super sensitive
scientific devices.