Specifications: 1.Can be used for CNC router upgrade,suitable for spindle diameter 52mm.marking machine module for cnc machine with spindle diameter 52mm, marking machine kit can be used directly on 3018/3018-M/3018pro, which saves a lot of marking machine cost. 2.The marking range is adjustable, the depth is adjustable, the speed is adjustable,the electromagnetic coil is energized and rotates at high speed to generate suction, which causes the needle to vibrate at high frequency, hitting the workpiece and impacting the dot matrix. At the same time, the computer controls the movement of the needle so that the dot matrix forms lines to form characters and graphics on the workpiece. 3.Dedicated to nameplates, nameplates on the marking of electric marking machine; using electric marking method, no air compressor (air pump), easy to use; for all metal or hard plastic signs, such as: aluminum, stainless steel, iron, copper, hard plastic nameplates.Can edit any Chinese characters, numbers, letters and graphics. 4.The marking machine module is compatible with LaserGRBL, LightBurn and other engraving software, supports Win XP / Win 7 / Win 8 / XP / Win 10 operating systems, supports MAC systems (LightBurn). Technical Parameters: Dimensions:52*190mm weight: 0.3KG Lifting height: 15mm Marking speed: 2000mm/min Marking depth: 0.05-1mm Needle hardness: 93HRA Needle distance: 0.5-1mm Voltage power: 110V 400W Notes: please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Package included: 1.Electric Marking Machine Module*1 2.line*1