... non-metal and some soft metal materials, for example, acrylic, PVC, Foam board, stone, copper, aluminum, plastic plate, wood, glass etc ... /M Stepper motors: 0.006mm16 pcs engraving tools12 Month Warranty on parts and Labor Maximum Engraving Area1200mm * 2500mm * 120mmSpindle Power2.2 ... -coolingPower SupplyAC 110V-240V, AC380V. 50Hz or 60HzSample pictuer: hot sale granite stone laser engraving machine