Item Parameter Laser Medium Diode-pump Chiller Air cooling Laser Frequency 2000Hz Maximum Engraving Speed 120000dots/min Maximum Engraving Range 300x300x100 mm (F-theta lens 100mm)DPI 1000Laser Wavelength 532nm Maximum Power of the Whole Machine 1KW Number of Laser Heads 1 Pulse width <5 ns Nominal Energy 1 mJ (TEM) Stability +/- 0.5% (pulse to pulse) diameter of a point 20 um- 40 um Positioning accuracy < 10 um Sound level 30 dB(A) Spare Part None Continuous Working Time12 hrs Electrical ConnectionAC220v±10%,50-60hz Weight of the Whole Machine 180kgs Dimension of the Whole Machine 850mm×730mm×650mm Room temperature 15-35°C Engraving time 50X50X80mm 2 mins 30X20X15mm 30s