... Function, auto work according to customer's design . automaitc crystal machine with design function , auto work according to customer's design ... space : 0.1mm13 Work speed: 20-180 rpm (adjustable)normal machine ; 20-170 rpm (adjustable)high speed machine14 language : Chinese / ... English15 Power source :220 V /110V ,1-PH , 50/60 Hz ; 380 V ,1-PH , 50/60 Hz16 Efficiency: 500W17 ...