The TOPSCNC DK7740Z is a precision wire electrical discharge machining (EDM) system engineered for high-accuracy metal cutting applications. This CNC-controlled machine features a robust working table measuring 540×760mm with X and Y axis travel distances of 400×500mm (15.75" × 19.69"), complemented by U and V axis travel of 70×70mm for advanced taper cutting capabilities. The machine delivers exceptional cutting performance with maximum speeds reaching 220-300mm²/min and maintains cutting accuracy of ≤0.012mm for straight cuts. Surface finish quality ranges from Ra<2.5μm with optimal parameters, improving to Ra≤1.2μm with multiple cutting passes. The molybdenum wire electrode diameter ranges from Φ0.15-0.20mm, with typical wire feed rates between 1-11.4m/s, frequency adjustable. Designed for versatile metal processing, the DK7740Z accommodates workpieces up to 400-500mm thickness with maximum taper angles of ±6°/80mm and supports workpiece loads up to 600kg. The machine operates on single or three-phase power (220-415V, 50/60Hz) with rated power consumption of approximately 1-3KVA. Core components include precision linear guides, automatic wire tensioning systems, and advanced CNC controllers like the BMW-3000 or DQE-DS-03 platforms. Standard features encompass a 60-100L working fluid tank with 0.005mm filtration, automatic lift Z-axis mechanism, and integrated wire-break protection. The machine weighs approximately 1200-2500kg and measures around 2050×1720×2160mm, suitable for professional industrial applications requiring high-precision metal erosion machining.