Micro EDM Drilling Machine | ±0.002mm Precision, 0.1–3.0mm Holes

The Micro EDM Drilling Machine represents a specialized class of electrical discharge machining equipment designed to create extremely small, deep, and precise holes in conductive materials that are difficult or impossible to machine by conventional drilling. At Taizhou Chuang Yuan Machine Tool Co., Ltd., established in 2003 and located in Taizhou City, Jiangsu Province, China, we integrate research and development, production, and sales to deliver micro EDM drilling machines trusted by manufacturers in more than 20 exporting countries and regions. Our production process begins with rigorous design validation using finite element analysis to optimize the machine bed, column, and spindle rigidity, ensuring thermal stability during long machining cycles. Castings are aged and precision-ground, then assembled in a temperature-controlled workshop where each micro EDM drilling machine undergoes geometric accuracy testing, laser interferometer calibration, and a 72-hour continuous drilling trial before shipment. The core technology is the high-frequency pulse generator, capable of minimum discharge durations of 0.5 microseconds and peak currents as low as 0.1 amperes, which allows controlled material removal at the micron scale. The servo control system responds within milliseconds to maintain a stable gap between the rotating electrode and the workpiece, while the automatic electrode changing system supports up to 20 electrodes for unattended operation. These features let customers drill holes from 0.1 mm to 3.0 mm in diameter with depth-to-diameter ratios exceeding 20:1, achieving surface finishes of Ra 0.4 µm and positioning accuracy of ±0.002 mm. Typical materials include hardened tool steel, tungsten carbide, Inconel, titanium alloys, polycrystalline diamond, and conductive ceramics. Global application examples span aerospace turbine blade cooling holes, medical stent and surgical needle manufacturing, automotive injector nozzles, micro mold inserts for electronics connectors, and inkjet printer nozzle plates. In each case, the micro EDM drilling machine reduces burrs, eliminates heat-affected zones, and improves repeatability compared with laser or mechanical drilling. Our quality management follows ISO 9001 principles, and each machine includes multilingual documentation, remote diagnostics, and spare parts availability. With 20 years of manufacturing experience, a skilled engineering team, and a commitment to long-term partnerships, Taizhou Chuang Yuan helps customers increase yield, shorten cycle times, and enter new micro-machining markets with confidence. Our export footprint includes Europe, North America, Southeast Asia, the Middle East, and South America, and we continuously refine our micro EDM drilling machine to meet evolving industry standards, offering training, process development support, and responsive after-sales service that protect our customers' investment and production continuity.