The TOPSCNC DK7740ZAB is a high-precision CNC wire EDM machine designed for accurate and efficient metal cutting applications. Featuring an X-axis travel of 15.75 inches (400 mm) and a Y-axis travel of 19.69 inches (500 mm), this machine offers a robust work envelope suitable for a wide range of industrial parts. It is equipped with a DQE-DM-03 CNC controller, ensuring reliable and precise control over complex cutting operations. The machine delivers a machining precision of up to ±0.012 mm, with a maximum machining speed of 220 mm²/min and surface roughness as fine as Ra ≤ 2.5 μm for one-time cutting, Ra ≤ 1.1 μm for three-time cutting, and Ra ≤ 0.9 μm for five-time cutting. The DK7740ZAB supports a maximum workpiece weight of 1000 kg and a maximum cutting thickness of 350 mm, making it suitable for heavy-duty tasks. The machine utilizes a molybdenum wire electrode with a recommended diameter of φ0.18 mm and offers a maximum wire feed rate of 11.4 m/sec, adjustable for optimal performance. The machine’s design includes a closed protective cover, paper filter with an Italian pump for filtration, and a water tank capacity of 90 liters. It operates on a 380V, 3-phase, 50Hz power supply with a maximum working current of 10A and a power consumption of 0.56 kW. The DK7740ZAB is built for durability and efficiency, featuring a machine weight of 1800 kg and dimensions of 1800×1400×2150 mm. This machine is ideal for applications requiring high accuracy, repeatability, and surface finish quality in metal cutting.