| High Speed Machining Chart |
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| CRD/CRU Ruffer |
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| Part No. |
Diameter |
Material |
Thickness |
Feed Speed |
RPM |
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| CRD/CRU-250 |
1/4" |
Solid Wood |
1/2" |
450 IPM |
18,000 |
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| CRD/CRU-375 |
3/8" |
Solid Wood/PB |
3/4" |
725 IPM |
18,000 |
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Solid Wood |
3/4" |
500 IPM |
16,000 |
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Plywood |
3/4" |
1250 IPM |
22,000 |
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| CRD/CRU-500 |
1/2" |
Solid Wood |
3/4" |
750 IPM |
18,000 |
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Solid Wood |
1 1/8" |
600 IPM |
17,000 |
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PB |
3/4" |
2000 IPM |
25,000 |
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PB |
1" |
1200 IPM |
18,000 |
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| CRD/CRU-625 |
5/8" |
Solid Wood |
3/4" |
1850 IPM |
18,000 |
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Solid Wood |
1 1/2" |
750 IPM |
16,000 |
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| CRD/CRU-750-2 |
3/4" |
Solid Wood |
1 1/2" |
800 IPM |
18,000 |
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Solid Wood |
2" |
600 IPM |
16,000 |
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| Slow Helix Ruffer |
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| Part No. |
Diameter |
Material |
Thickness |
Feed Speed |
RPM |
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| CRU-SH Series |
3/8" |
Plywood |
1 1/8" |
900 IPM |
18,000 |
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Solidwood |
1" |
900 IPM |
18,000 |
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| CRU/D-SH |
1/2" |
Plywood |
1 1/2" |
1600 IPM |
18,000 |
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Plywood |
1" |
2400 IPM |
22,000 |
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Solidwood |
1" |
1600 IPM |
17,000 |
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Note:
Courmatt Int has provided maximum feed speeds. In the real world machines are different, along with horsepower, vacuum, POD systems, thickness of material etc. email or call for exact feeds & RPMs. With over thousands & thousands of applications. and thousands of tools. It would be difficult to provide on our web site all these formulas.
After 25 years in the tooling business Courmatt does have a data base for solutions.
These are the suggested feed speeds for the downshear tools with a large part layout.
On the upshear tools, feed speeds suggested can be used on a large part layout, however, on small parts feedspeeds should be reduced.
On the smaller parts, a downshear tool is recommended. If CNC equipment cannot provide above mentioned feed speeds, provide us with data and a customized chart can be provided. With roller hold-down use upshear for extended tool life. |
