DATRON CNC Milling - Copper ElectrodeNov 11, 2009 . Visit .datron. This video shows a DATRON high-speed milling and engraving machine milling an electrode from a copper blank. DATRON manufactures high-speed CNC machining centers for use with micro-tooling. DATRON machines feature 40,000-60,000 RPM spindles that produce low force,.copper milling machine,Copper Heatsink Aluminum Heat Sink Milling | DATRON Milling .Milling copper heat sinks and machining aluminum heat sinks is an ideal application for DATRON high speed CNC milling machines because copper and aluminum are the perfect materials for high speed machining. Our high speed spindles (up to 60,000 RPM) allow for exceptionally high feed rates in copper and.