Medium-speed wire EDM occupies the performance tier between conventional high-speed and precision slow-wire machines, delivering significantly improved surface finish and accuracy through multi-pass cutting technology — without the high consumable costs associated with brass wire systems.
Baoshijie's medium-speed range encompasses four distinct product lines to match different production requirements and budget profiles. The E-type stepper series provides a cost-effective entry into precision wire cutting, achieving surface roughness down to Ra ≤ 1.0–1.2 μm. The M-type and H-type stepper machines step up with Japanese-brand linear guideways and paired bearings for tighter tolerances and longer accuracy retention. At the top of the range, the M-type servo all-in-one integrates a full closed-loop AC servo drive system with the machine structure, reaching surface roughness as fine as Ra ≤ 0.8 μm and machining accuracy of ±0.004 mm.
All medium-speed machines use reusable molybdenum wire, keeping operating costs low while meeting the demands of precision mold making, automotive tooling, and high-accuracy component production.