SHEM DK7750ZF WIRE EDM MACHINES

Technical Description

The SHEM DK7750ZF Wire EDM Machine is a CNC-controlled high-precision wire electrical discharge machine designed for accurate and efficient cutting. It features a robust build weighing 5071 lbs, with X- and Y-axis travels of 24.8 inches and 19.7 inches respectively, suitable for medium-sized workpieces. The machine supports wire diameters typically between 0.10 to 0.20 mm, utilizing molybdenum wire for precision cutting. It achieves machining accuracy within 0.02 mm and an optimal surface roughness up to Ra 2.5 μm. The maximum cutting thickness reaches approximately 700 mm, allowing for substantial material depth. Cutting speeds exceed 120 mm²/min, ensuring productivity for complex and detailed parts. Operating on a 3-phase 380V power supply with about 1.5 kW consumption, it is compatible with water-based emulsion as the working fluid to maintain efficient flushing and wire cooling. Advanced features include CNC programmability compatible with CAD inputs, stable pulse generation for consistent electrical discharging, and automatic wire tensioning. The control system typically uses a high-precision stepper motor and linear guideways, supported by software that enables taper cutting up to ±6° per 80 mm length, as well as memory functions for power-loss recovery and wire-break management. Overall, the DK7750ZF combines precision, reliability, and automation for tooling, mold making, and complex part fabrication applications where tight tolerances and fine surface finishes are critical.