The 4L721F3-02 is an electric-erosion (EDM) copying and piercing machine with Z-axis CNC control across three controlled coordinates, built for precision die, mold and toolmaking. The work envelope provides X/Y travels of 280/230 mm with 350 mm Z travel over a 600×300 mm table, achieving surface roughness down to Ra 0.3 µm.
The CNC system is supplied by MaxSee (Taiwan), pairing proven control electronics with the machine's rigid 900 kg cast construction; overall dimensions are 1.4×1.36×2.2 m. Operating in RJ-3/RJ-8 dielectric media, the machine handles hardened steels and carbides that defeat conventional milling.
At about USD 9,000 with single-unit MOQ, the 4L721F3-02 gives tool-room equipment dealers and die-making shops a capable sinker-EDM platform at a fraction of Japanese or Swiss machine pricing — a practical entry into EDM capability for workshops in developing manufacturing markets, with factory commissioning documentation and electrode-holder tooling available.
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