The TOPSCNC DK7740ZA Wire EDM Machine is a high-precision CNC-controlled electrical discharge machining system designed for accurate and efficient metal cutting. Featuring an X-axis travel of 15.75 inches (400 mm) and a Y-axis travel of 19.69 inches (500 mm), this machine delivers reliable performance for a wide range of industrial applications. The CNC control system, model DQE-DC-01, enables simultaneous four-axis operation, ensuring precise contouring and complex shape machining. The machine supports a maximum workpiece thickness of up to 450 mm and can achieve a maximum taper angle of ±6° for tapered cuts. It utilizes a molybdenum wire electrode with a recommended diameter of 0.18 mm, adjustable wire feed rate from 1 to 11.4 m/sec, and a maximum machining speed of over 200 mm²/min. Surface roughness can be as fine as Ra ≤1.2 μm after multiple cuts, making it suitable for high-quality finishing operations. The machine is equipped with a robust stepper motor drive system for all axes, ensuring smooth and accurate movement. It operates on a 380V, 3-phase, 50Hz power supply and features a water-based working solution for efficient cooling and debris removal. The working table can support a maximum load of 1000 kg, and the system includes advanced functions such as automatic wire threading, short-circuit and wire-break protection, and memory retention in case of power interruption. With a machining precision of ≤0.012 mm and a minimum control resolution of 0.001 mm, the DK7740ZA is ideal for demanding precision machining tasks in tool and die, mold making, and aerospace industries.