Mitsubishi Electric MV1200R Wire EDM
Key Specifications
X/Y/Z Travel
Max Workpiece Weight
Wire Diameter Range
Max Cutting Speed
Surface Finish Ra
Taper Angle
Overview
The Mitsubishi Electric MV1200R is a high-performance wire EDM machine that combines a generous work envelope with Mitsubishi's advanced Digital AE (Adaptive Expert) power supply technology. Designed for demanding toolroom and production die shops, the MV1200R offers X/Y axis travels of 600 x 400 mm with a 300 mm Z-axis, accommodating large workpieces up to 900 kg on its precision ground table.
Mitsubishi Electric's Digital AE generator is the technological centerpiece of the MV1200R. It samples gap conditions at extremely high frequency and adjusts discharge parameters thousands of times per second, enabling the machine to maintain optimum cutting conditions across varying material thickness, hardness, and flushing conditions without operator intervention. This translates to consistent surface finishes in the Ra 0.18 µm range and maximum cutting speeds reaching 500 mm²/min in standard steel.
The MV1200R features Mitsubishi's DIGI-POWER technology, which delivers stable, high-frequency fine finishing passes that achieve mirror-like surfaces without the machine marks common on lesser finishing generators. Its advanced taper cutting system supports angles up to ±30° at 100 mm workpiece height, covering the full range of automotive stamping, forging die, and extrusion tooling requirements.
As part of Mitsubishi's MV-R series, the MV1200R incorporates a next-generation V550 CNC controller with a Windows-based touch interface, integrated CAM capabilities for on-machine programming, and network connectivity for DNC and remote monitoring. The machine's automatic wire feed and re-threading system handles breaks reliably, supporting extended unattended operation in high-volume die manufacturing environments.
Full Specifications
| Parameter | Value |
|---|---|
| X/Y/Z Travel | 600 x 400 x 300 mm |
| Max Workpiece Weight | 900 kg |
| Wire Diameter Range | 0.1 – 0.3 mm |
| Max Cutting Speed | 500 mm²/min |
| Surface Finish Ra | Ra 0.18 µm |
| Taper Angle | ±30° / 100 mm |
| Control System | Mitsubishi V550 |
| Machine Weight | ~5,200 kg |
Strengths & Limitations
Strengths
- Digital AE adaptive power supply adjusts discharge parameters in real time for consistent cuts
- 600 x 400 mm travel handles large stamping and die work with up to 900 kg workpieces
- DIGI-POWER fine finishing delivers mirror-quality Ra 0.18 µm surfaces
- Windows-based V550 CNC with touch interface and on-machine CAM simplifies programming
Limitations
- Ra 0.18 µm finishing is slightly behind the most advanced Japanese competitors
- Large machine weight and size require careful facility planning
- Advanced adaptive controls have a learning curve for operators new to Mitsubishi EDMs
Best For
Frequently Asked Questions
01
The Digital AE generator samples the discharge gap at extremely high frequency — far faster than analog systems — and adjusts pulse energy and timing thousands of times per second. This keeps the EDM process in the optimal zone across changing conditions, improving both speed and surface finish consistency compared to fixed-parameter cutting strategies.
02
Yes. The MV1200R handles hardened tool steel, tungsten carbide, Inconel, titanium, and other conductive exotic alloys. Carbide cutting requires the appropriate dielectric flushing settings and wire selection to manage the different electrical characteristics of the material.
03
The V550 controller includes on-machine programming capabilities for standard EDM toolpaths. For complex progressive dies and 3D taper programs, most shops also use a dedicated CAM package such as Alphacam, ESPRIT, or Mastercam EDM in conjunction with the machine's built-in tools.
Videos
MTDCNC
MTDCNC
The HEH Group
HK Ltd
KD Machinery
Community Discussions
Community discussion — Wire EDM Tolerances : r/Machinists - Reddit
Owner experience and review — Wire EDM Machining Questions : r/Machinists - Reddit
Community discussion — Any Wire EDM people here? : r/Machinists - Reddit
Community discussion — Buying a wire edm machine : r/Machinists - Reddit
Links to community discussions. Summaries are editorial — visit the original thread for full context.
