PNC Digital conventional type EDM with DRO, 5 steps numerical control of Z axis machining ; fast response MOSFET machining circuits. FEATURES: * Table is hardened. * Constructed of high guality cast iron, quench treated. * X, Y-axes high precision ballscrews. * Fast response MOSFET machining circuits. * Auto fire extinguisher, fire sensor, arcing sensor, dielectric level & temperature sensor are standards. * Interchangeable insert-board. Clearly identified numbers for maximum convenience of maintenance. * Memorized with 90 sets of teach-in parameters. * Choice of sparking or non-sparking for Z-axis mold alignment. Intelligent arcing auto adjustment function : Intelligent arcing sensor & adjust parameters to ensure best performance. * Digital dual voltage (high/low voltage) currents being synchronously discharged to ensure faster metal removal rate, low electrode wear and uniform surface finish.