Handheld 20W 30W 50W Fiber Laser Nameplate Marking Machine Align System Scanner for PVC Plastic Stainless Steel Metal Engraving Moudel Number Q8A-20 Q8A-30 Q8A-50 Output Power 19.5W 26.5W 50W Laser Beam Quality M² ≤1.4 Pulse Repetition Rate 27-60kHz Laser Wavelength 1064±5 Power Stability <3% Marking Range 75mm Marking Depth ≤1mm Marking Speed ≤10000mm/s Repeated Accuracy ±0.005 Min. Marking Width 0.1mm Min. Marking Heigth 0.15mm Continuous Working Hours 6-8 Cooling Method Air Cooling Controller System linux