| High Speed Machining Chart | | | | | | CRD/CRU Ruffer | | | | | | | | | | | | | | Part No. | Diameter | Material | Thickness | Feed Speed | RPM | | | | | | | | | CRD/CRU-250 | 1/4" | Solid Wood | 1/2" | 450 IPM | 18,000 | | | | | | | | | CRD/CRU-375 | 3/8" | Solid Wood/PB | 3/4" | 725 IPM | 18,000 | | | | Solid Wood | 3/4" | 500 IPM | 16,000 | | | | Plywood | 3/4" | 1250 IPM | 22,000 | | | | | | | | | CRD/CRU-500 | 1/2" | Solid Wood | 3/4" | 750 IPM | 18,000 | | | | Solid Wood | 1 1/8" | 600 IPM | 17,000 | | | | PB | 3/4" | 2000 IPM | 25,000 | | | | PB | 1" | 1200 IPM | 18,000 | | | | | | | | | CRD/CRU-625 | 5/8" | Solid Wood | 3/4" | 1850 IPM | 18,000 | | | | Solid Wood | 1 1/2" | 750 IPM | 16,000 | | | | | | | | | CRD/CRU-750-2 | 3/4" | Solid Wood | 1 1/2" | 800 IPM | 18,000 | | | | Solid Wood | 2" | 600 IPM | 16,000 | | | | | | | | | Slow Helix Ruffer | | | | | | | | | | | | | | Part No. | Diameter | Material | Thickness | Feed Speed | RPM | | | | | | | | | CRU-SH Series | 3/8" | Plywood | 1 1/8" | 900 IPM | 18,000 | | | | Solidwood | 1" | 900 IPM | 18,000 | | | | | | | | | CRU/D-SH | 1/2" | Plywood | 1 1/2" | 1600 IPM | 18,000 | | | | Plywood | 1" | 2400 IPM | 22,000 | | | | Solidwood | 1" | 1600 IPM | 17,000 | | | | | | | |
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.
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