... when the blade is broken or having to postpone the process.4. With better compatibility, can math with many programs ... 5kw/11kw(can be choices)Spindle Speed 0-24,000rpmrpm Table styleFixture/option vacuum tableDust collection yesVoltageAC220V/50HZ/AC380V/50Hz/ ... : 0°C~45°CApplicable industryJade or marble engraving, also for Sign board process, mould, bronzing ,badge, pattern mould, art carve, sign ...