Mitsubishi MV1200-R M800 Wire EDM Machine — Available in the Midwest
Reviewed and recommended by Steve Brown, Founder — Iron Machine Tool | Authorized Midwest Mitsubishi EDM Distributor
About the Mitsubishi MV1200-R M800 Wire EDM
Most wire EDM decisions come down to a simple question: do you need volume, or do you need accuracy? The MV1200-S is Mitsubishi's answer for volume. The MV1200-R M800 is their answer when the tolerance is non-negotiable.
Same compact footprint. Same M800 control. Same fiber-optic servo communication. But the MV1200-R Advance Plus extends the non-contact cylindrical drive system to all four axes — X, Y, U, and V — not just X and Y as on the MV1200-S. That's the difference. It's what gives this machine ±0.0001″ positional accuracy and the ability to achieve an optional 4Ra surface finish without any secondary grinding or hand polishing.
Steve Brown at Iron Machine Tool has placed MV1200-R machines with Midwest shops running tight-tolerance mold inserts, precision stamping tooling, and medical device components. The conversation usually starts the same way: a shop has been pushing their current EDM to its limits and the parts are coming back at inspection. The MV1200-R is where that problem ends.
overview
| Specification | Details |
| Machine Travels: X × Y × Z | 15.7" × 11.8" × 8.7" (400 × 300 × 220 mm) |
| Max Workpiece Dimensions: W × D × H | 31.9" × 27.6" × 8.5" (810 × 700 × 215 mm) |
| Max Submerged Workpiece Weight | 1,102 lb (500 kg) |
| Table Dimensions | 25.2" × 17.7" (640 × 450 mm) |
| U/V Travels (from center) | ±2.4" × ±2.4" (±60 × ±60 mm) |
| Taper Angle @ Thickness | 15° @ 8.0" (15° @ 200 mm) |
| Wide Angle Taper (optional guides) | 45° @ 1.8" (45 mm) |
| Positional Accuracy — Advance Plus | ±0.0001" |
| Surface Finish (optional) | 4Ra |
| Table Rapid Feed Speed | 51.2 in/min (1,300 mm/min) |
| CNC Control | Mitsubishi M800 Series — 19" touchscreen |
| Power Supply | V350-V AEII with Digital Spark Control |
| Minimum Drive Resolution | 0.000002" / 2 µin (0.00005 / 50 nm) |
| User Program Storage | 1 GB (32 GB CFAST card total) |
| Wire Diameter Range | 0.004" ~ 0.012" (optional 0.002") (0.1 ~ 0.3 mm) |
| Minimum Start Hole Diameter | 0.02" (0.5 mm) |
| Max Wire Spool — On Machine / Cabinet | 22 lb / 44 lb (10 / 20 kg) |
| Filters / Type | 2 / Paper |
| Filter Tank Capacity | 145 gal (550 L) |
| Machine System Weight | 5,952 lb (2,700 kg) |
| Power Requirements | 200–230V | 13.5 KVA (built-in AVR) |
| Compressed Air | 2.7 cu.ft./min @ 71–100 psi |
Key Capabilities of the MV1200-R M800
Non-Contact Cylindrical Drive — All Four Axes
The MV1200-S covers X and Y. The MV1200-R goes further, applying the zero-backlash non-contact cylindrical drive to X, Y, U, and V. What that means in practice: your straight cuts, taper cuts, and complex angular geometry all hold the same ±0.0001″ accuracy. There's no degradation on the off-axis moves. Mitsubishi backs this drive system with a 10-year positioning warranty — the kind of confidence you only put in writing when you've tested it extensively.
Optional 4Ra Surface Finish
The 4Ra finish capability on the MV1200-R isn't a marketing number — it's achievable in production, on the same machine, in the same cut sequence. The V350-V AEII power supply's Digital Spark Control shapes each spark using the DMX-S Digital Matrix Sensor, minimizing surface deviation. For shops finishing mold cavity surfaces or producing tight-tolerance tooling faces, this eliminates the lapping step that was eating hours.
Auto-Threading That Actually Works Unattended
The 14-inch annealing length auto-threading system on the MV1200-R was designed with overnight production in mind. It re-threads reliably after wire breaks — including on thin, delicate, or interrupted workpieces where other machines need an operator standing by. If you're considering running EDM automation with this machine, threading reliability is the variable that determines whether lights-out production is actually lights-out.
M800 Control — the Same Interface Across the Lineup
The M800 19-inch touchscreen runs on a Windows-embedded platform with 1 GB of program storage and standard FTP/Ethernet connectivity. If your operators have run any M800-equipped Mitsubishi machine, they're ready to run this one. The control also supports remote360 monitoring — machine status, alarms, and production data visible from a phone or PC without being on the floor.
Industries That Rely on the MV1200-R M800
The MV1200-R is chosen when the job requires more than what a standard production EDM can deliver. If your parts are coming back from CMM with tolerance rejections, or your current machine can't hold finish on mold cavity surfaces, this is where the conversation starts.
Aerospace Components
Fuel system fittings, actuation components, and precision brackets in Inconel, titanium, and hardened steel. Materials where conventional machining leaves tolerances that don't pass inspection and where EDM's no-heat, no-force cutting is the only practical option.
Medical Device Components
Surgical instruments, implant features, and micro-geometry parts carry tight tolerance specifications that aren't suggestions. In medical manufacturing, ±0.0001″ is either the spec or it isn't — and the MV1200-R is built to meet it consistently, in production, not just on a demonstration cut.
Mold and Core Insert Production
Cavity inserts and core pins for injection molds where the surface finish on the cut face determines cycle time, part release quality, and overall mold service life. The MV1200-R's 4Ra capability means fewer post-EDM steps before a mold goes into production.
Precision Tooling and Stamping Dies
Shops producing stamping dies for high-speed presses know that surface finish on cutting edges is directly tied to tool life. A rougher finish means faster wear, more frequent resharpening, and shorter die life. The MV1200-R produces faces that hold up
Why Buy the MV1200-R M800 Through Iron Machine Tool
Iron Machine Tool is the authorized Mitsubishi EDM distributor for the Midwest — not a reseller, not a broker. Headquartered in Minneapolis, Minnesota, serving manufacturers across Minnesota, Wisconsin, Illinois, Iowa, and the surrounding region.
When a shop buys an MV1200-R through Iron Machine Tool, the transaction starts and ends with Steve Brown. Steve has placed Mitsubishi EDM equipment with Midwest manufacturers across aerospace, automotive tooling, medical device, and mold production environments. When a customer calls with a question about threading reliability on a fine-pitch application, or a surface finish issue at tighter-than-standard tolerances, that call goes to someone who has dealt with the same question before — not to a national support queue.
That's the practical difference between buying from a regional distributor who knows the machines and buying from a catalog:
- Faster response — Steve Brown's direct contact, not a ticket number
- Local coordination — service and support based in the Midwest, not routed from a national hub
- Application knowledge — pre-sales guidance based on your actual parts and tolerance requirements, not a spec sheet comparison
The Support Infrastructure Behind Every Machine
Iron Machine Tool gives you full access to Mitsubishi's Triple Diamond Partnership Program — which includes a complimentary preventative maintenance visit within the first year, remote360 monitoring capability (real-time machine status and diagnostics accessible from anywhere), and Mitsubishi's dedicated parts supply chain. For manufacturing businesses where an EDM sitting idle costs real money, the support structure behind the machine is not a secondary consideration.
Steve Brown will tell you directly whether the MV1200-R is the right machine for your work — and if it isn't, he'll tell you that too. Contact Iron Machine Tool to have that conversation.
Frequently Asked Questions — Mitsubishi MV1200-R M800
A: The work envelope is identical: 15.7" × 11.8" × 8.7". The M800 control is identical. The difference is in the drive system. The MV1200-S applies the non-contact cylindrical drive to X and Y only — which is sufficient for the vast majority of production wire EDM work. The MV1200-R extends that drive to all four axes (X, Y, U, V), achieving ±0.0001″ tolerance and an optional 4Ra surface finish. If your parts have tight tolerances on tapered features, if your inspection process is regularly flagging dimensional rejections, or if your current surface finish requires secondary processing — those are the signals that point to the MV1200-R. If you're running standard production work where accuracy is good but not extreme, the MV1200-S is the more cost-effective machine.
A: The MV1200-R achieves an optional 4Ra surface finish in production, through the Advance Plus drive system and the Digital Spark Control in the V350-V AEII power supply. "Optional" means it requires specific cutting conditions — it's not the default roughing pass. In practice, shops use the MV1200-R to complete finish passes on mold cavity surfaces and precision tooling faces without additional hand polishing. If your application requires finishes below 4Ra, such as mirror-quality surfaces for optical tooling or micro-mold work, the MX600 with oil-dielectric technology achieves down to 1.4µ"Ra.
A: Standard wire range is 0.004" to 0.012" (0.1 mm to 0.3 mm), covering the full range of typical precision wire EDM work. An optional 0.002" (0.05 mm) wire capability is available for applications requiring ultra-small corner radii or very narrow slot features. At 0.002" wire, the MV1200-R handles micro-geometry cutting that would be impossible with standard wire sizes.
A: Yes — and that's a reasonable request for a machine at this price point. Iron Machine Tool can arrange a demonstration through Mitsubishi's facility. Steve Brown can also discuss test cut options if you have a specific part geometry or material you want to validate. Contact Iron Machine Tool directly to set that up.
A: The Triple Diamond Partnership Program includes a full 1-year machine warranty and a complimentary preventative maintenance visit within the first year. The non-contact cylindrical drive system on both the MV1200-R and MV1200-S carries a separate 10-year positioning warranty — Mitsubishi's public commitment to the drive system's long-term accuracy. That 10-year figure is not common in the wire EDM market, and it's worth understanding what it means: Mitsubishi is confident enough in this technology to guarantee it in writing for a decade.
Ready to Add the MV1200-R to Your Shop?
If you're running tooling, medical components, or mold inserts where ±0.0001″ is the spec — not a stretch goal — the MV1200-R is built for that work. Contact Steve Brown at Iron Machine Tool. He'll tell you straight whether this machine fits your application, and if it doesn't, he'll tell you that too.