... -1350Size of vacuum chamber900*H1050mm1200*H1250mm1350*H1450mmFrock clampArch single workpiece disc, maximally meeting customers’ requirement on ... 5-30 r/min, stepless variable speed1. Arch single workpiece disc, maximally meeting customers’ requirement on ... . Positioning scanning, triangular wave scanning, circular scanning, spiral scanning, square wave scanning, sine wave, good beam spot focusing ...