... iron, steel, bronze,aluminum,ect. 2.The DSP control system uses 128M memory and supports USB disk direct ... independent control cubicle is advantageous for maintenance and be much safer.4.Main spindle features: 2.2KW frequency conversion ... softwarePower sourceAC 220V/50-60HzDriver typestepper motorSpindle power2.2KW variable speed,water-cooledSpindle speed0-24,000rpmTool diameter1-12.7mmColletCollet ...