... ) Software: type 3 software, Artcut software, Artcam software9) Power source: 3 phase 380V10) Driver type: stepper motor11) Spindle: 4 ... .5KW constant power spindle12) Spindle speed: 0 - 24000rpm13) Blade diameter: 3. ... chemical synthesis board, bamboo or curved, spherical. Constant Power Spindle Stable Operation Large Heavy Load CNC Engraver JCUT-1218C ...