FA, MV and BA wire machines
The wire EDM series follow each other on KD Machinery’s record. FA machines (the FA10, FA20 and their S, V and Advance versions) were built from 2001 to 2012. The BA24 appears in 2011 and 2012, and the MV series from 2013 to 2022. The numbers give the size class: an FA10 has 13.8 by 9.8 inches of X and Y travel and an FA20 19.7 by 13.8, while an MV1200 has 15.7 by 11.8 and an MV2400 23.6 by 15.7, the same as the BA24. The MV1200S and MV1200S Advance are common among the recent machines on the record.
EA sinkers
The EA8, EA12 and their versions are the sinker EDMs on KD Machinery’s record, built from 1999 to 2021, with the larger EA22 and EA28 less common. An EA8 has 11.8 by 9.8 inches of X and Y travel and an EA12 15.7 by 11.8. Ask about the power supply rating, the C axis (listed on many), the tool changer and how many electrodes and holders come with the machine.
Controls by year
On KD Machinery’s record, FA machines from the early and middle 2000s carry Mitsubishi’s 64-bit PC-based control, and the FA Advance machines from 2007 to 2011 the M700 or M750 Advance. The EA sinkers from 2004 on run the M700. MV machines built from 2013 to 2017 that name a control mostly give the M700, and most from 2018 on the M800. The earliest sinkers show Fuzzy Logic or Fuzzy Pro controls.
What to check on a used Mitsubishi EDM
On a wire machine, cut and measure a test part, run the automatic wire threader repeatedly, and check the chiller, filters and resin. On a sinker, check the dielectric tank, the fire extinguisher system and the C axis if fitted. On both, check the glass scales or encoders and the work tank seals. Most Mitsubishi EDMs KD Machinery has listed are wired for 200 to 230 volts three-phase, so a 480-volt shop will need a transformer.
Other Mitsubishi and EDM pages
KD Machinery also has pages for the Mitsubishi ML3015 laser and for used Sodick EDM machines. Every Mitsubishi machine it lists is on the Mitsubishi manufacturer page, and every make of EDM under used EDM machines.