Electric Mini Printing Marking and Engraving Pneumatic Marking Machine Desktop-200 Upgrade Model Technical Specifications Marking Depth: 0.1-1mm (depending on material) Marking Speed: Approx. 1 character per second (adjustable) Customer-Supplied: Computer + Air Source Air Source Pressure: 0.3MPa-0.6MPa Unit Weight: 12kg Gross Weight: 13kg Dimensions: 220*300*280mm