Mitsubishi MX600 Advance Plus Wire EDM | Ultra-Fine Cutting to 0.0008" Wire
Reviewed and recommended by Steve Brown, Founder — Iron Machine Tool | Authorized Midwest Mitsubishi EDM Distributor
About the Mitsubishi MX600 Advance Plus Wire EDM
Every other machine on this page the MV1200-S, MV1200-R, MV2400-S, MV2400-R, MV2400-ST, MV4800-S uses water-based dielectric fluid. The Mitsubishi MX600 Advance Plus uses oil. That single difference is what makes this a fundamentally different machine, not just a smaller or more specialized version of the MV series.
Oil-dielectric technology unlocks two capabilities that water-based EDM physically cannot match. First, wire diameter: the MX600 cuts with wire as thin as 0.0008" (0.02mm) fifteen times thinner than the 0.012" maximum wire used in MV-series machines. At that diameter, the MX600 produces micro-geometry features, ultra-fine corner radii, and slots at wire width that are impossible with any water-based machine regardless of how it's set up or what parameters it runs. Second, surface finish: the MX600's Nano-FS finishing circuit achieves 1.4µ"Ra a mirror-quality surface without any secondary hand polishing or lapping on the bench.
The MX600 also solves a problem that affects every shop cutting carbide with a water-based EDM: cobalt depletion. Water creates an electrolytic environment around the workpiece during cutting. That environment causes the cobalt binder in cemented carbide to leach out of the material surface weakening the bond between carbide grains and degrading the material's hardness and toughness. Oil eliminates that reaction entirely. The MX600 is the correct machine for carbide punches, dies, wear components, and precision carbide tooling where material integrity after EDM is a quality requirement.
Steve Brown at Iron Machine Tool places MX600 machines with a specific type of customer shops that have pushed their MV-series EDM to its limits and found a surface finish or geometry gap that water-based technology can't close. Medical device manufacturers, micro-mold makers, and carbide tooling producers are where this conversation consistently leads.
Cutting carbide, chasing mirror finishes, or working with wire below 0.004"?
The MX600 conversation starts with your application not the spec sheet. Tell Steve Brown what you're trying to achieve and he'll tell you straight whether the MX600 is the right machine or whether an MV-R in finishing mode gets you there.
MX600 Advance Plus Specifications
| Specification | Details |
| Machine Travels: X × Y × Z | 11.8" × 7.8" × 7.0" (300 × 200 × 178 mm) |
| Max Workpiece Dimensions: W × D × H | 24.4" × 24.0" × 3.9" (620 × 610 × 100 mm) |
| Dielectric Fluid Type | Oil (not water-based — key differentiator vs MV series) |
| Wire Diameter Range | 0.0008" ~ 0.008" (0.02 ~ 0.2 mm) |
| Surface Finish Capability | To 1.4µ"Ra (Nano-FS circuit — mirror finish) |
| Machine Base Material | Granite (electrical isolation + thermal stability) |
| Finishing Circuit | Nano-FS — mirror finish without special tooling |
| Anti-Electrolysis Protection | Full-time AEII power supply |
| U/V Travels (from center) | ±1.6" × ±1.6" (±40 × ±40 mm) |
| Taper Angle @ Thickness | 15° @ 3.9" (15° @ 100 mm) |
| Table Rapid Feed Speed | 39.4 in/min (1,000 mm/min) |
| CNC Control | Mitsubishi M800 Series — 19" touchscreen |
| Guideways | Linear-motion with extra-long bearings (minimizes guide waving) |
| Wire Spool Capacity | 22 lb (10 kg) |
| Machine System Weight | ~6,600 lb (~3,000 kg) |
| Power Requirements | 200–230V | 10 KVA |
| Compressed Air | 2.7 cu.ft./min @ 71–100 psi |
Key Capabilities of the MX600 Advance Plus
Oil-Dielectric Technology : What It Actually Changes
Switching from water to oil dielectric is not a refinement of water-based EDM. It's a different class of machine that opens capabilities water-based technology doesn't have access to regardless of setup or parameter optimization. Oil allows smaller wire diameters because it has lower electrical conductivity and better dielectric breakdown characteristics at micro scales. Oil produces finer surface finishes because it doesn't oxidize the workpiece surface during the spark cycle the way water does. Oil prevents cobalt depletion in carbide because there's no water to trigger the electrolytic leaching reaction. Oil prevents oxidation in iron-base materials for the same reason. These are not incremental improvements they're capabilities that exist on the MX600 and not on water-based machines.
0.0008" Wire Capability : Fifteen Times Finer Than MV Maximum
The MX600 supports wire diameters from 0.0008" to 0.008" (0.02 to 0.2 mm). At 0.0008" wire the machine's lower limit — the MX600 produces features with corner radii below 0.001", micro-slots at wire width, and micro-geometry cutting that is not achievable with any water-based wire EDM. For medical device components, connector tooling, and micro-precision parts where the feature geometry is the production constraint, the MX600's wire range is what makes those parts manufacturable in-house instead of outsourced to specialty shops.
1.4µ"Ra Mirror Finish Without Polishing
The Nano-FS finishing circuit on the MX600 achieves surface finishes to 1.4µ"Ra in production conditions. That is a mirror-quality surface that eliminates hand polishing and lapping on precision mold cavity surfaces, optical tooling, and micro-precision components. The nPV Nano-Pulse power supply integrates oil-sinker EDM and water wire EDM power supply technologies specifically for dielectric oil machining it's purpose-built for the MX600's application range, not adapted from water-based technology. For shops where the post-EDM polishing bench is a production bottleneck, the MX600's finish capability removes that step entirely.
Granite Base : Electrical Isolation and Thermal Stability
The MX600's machine base is granite, not cast iron. This is not an aesthetic choice it delivers two engineering advantages that directly affect cut quality. First, granite electrically isolates the workpiece from the machine frame, reducing floating capacitance the electrical noise that affects spark consistency and surface finish quality. Lower floating capacitance means more consistent sparks and better surface finish repeatability. Second, granite has a lower coefficient of thermal expansion than cast iron, meaning the machine maintains dimensional stability longer during extended precision cutting operations. Both factors work together to produce the surface finish and accuracy consistency the MX600 is capable of.
Thermal Buster + Enclosed Machine Cabin
The MX600 runs an enclosed machine cabin that protects the casting from sudden environmental temperature changes a meaningful consideration in shops where ambient temperature varies with seasons or HVAC cycles. The Thermal Buster system synchronizes the machine working area temperature with the casting using a chilled fluid circulation system. On a machine producing 1.4µ"Ra finishes, thermal stability isn't a secondary concern it's a primary variable in whether the finish is achievable consistently.
M800 Control — Same Interface, Different Machine
The 19-inch M800 touchscreen, FTP/Ethernet connectivity, and remote360 monitoring are the same as the MV-series machines. Operators who have run any M800-equipped Mitsubishi machine understand the interface. What changes is the underlying machine technology oil-dielectric cutting, granite base, Nano-FS circuit not the control experience.
Industries That Rely on the Mitsubishi MX600 Advance Plus
The MX600 serves a specific manufacturing niche — shops that have pushed their water-based wire EDM to its capability limit and found a gap that oil-dielectric technology closes. This is not a machine for every shop. It's the right machine for shops with specific requirements that water-based EDM cannot meet.
Medical Device Manufacturing
Surgical instrument components, implant features, and micro-precision parts that carry tolerance specifications measured in ten-thousandths and surface finish requirements below 4Ra are where the MX600 earns its place in a Midwest medical device shop. The 0.0008" wire capability handles fine-feature cutting micro-slots, corner radii below 0.001", instrument tip geometry in hardened stainless steel, cobalt-chrome, and titanium alloys where conventional machining leaves tolerances that don't pass inspection and water-based EDM runs out of wire diameter before finishing the feature. For shops producing components to ISO 13485 quality standards, the MX600 provides the process consistency and surface finish capability that those standards require.
Carbide Tooling Production
Carbide punches, dies, wear components, and precision tooling where water-based EDM's cobalt depletion problem is compromising material integrity. Every shop that has cut carbide on a water-based machine has seen the surface degradation layer the region where cobalt has leached out and the material is softer and more brittle than the bulk. On carbide tooling that needs to perform at full hardness after EDM, that degradation layer is a quality problem. The MX600 eliminates it entirely. Oil dielectric does not trigger the cobalt depletion reaction. Carbide comes off the MX600 with full material integrity no degradation layer, no subsurface weakness.
Micro-Mold and Precision Tooling
Micro-cavity molds for medical connectors, electronics housings, and micro-precision consumer products where feature geometry at the MV-series wire diameter limit (0.004") isn't fine enough to produce the cavity accurately. The MX600 produces those features with 0.002" or 0.0008" wire making cavity geometry possible that would require a spark eroder or laser on a water-based EDM platform. For micro-mold shops producing tooling for the medical and electronics industries, the MX600 is the machine that keeps that work in-house.
Precision Optical and Mirror-Finish Tooling
Applications requiring mirror-quality surfaces below 2µ"Ra where secondary polishing is either not acceptable due to dimensional impact, or not practical due to feature geometry that a polishing tool can't access. The MX600's 1.4µ"Ra Nano-FS finish capability eliminates that downstream step surfaces come off the machine at the required finish, not at a rougher finish that needs to be worked down by hand.
Watchmaking and Micro-Mechanism Manufacturing
Extreme-precision components for mechanical movements, micro-actuators, and precision instruments where feature sizes approach the limits of conventional manufacturing and where surface finish and geometry accuracy are the production constraints. The MX600 operates at the edge of what wire EDM technology can achieve and for shops whose work lives at that edge, it's the only practical option in the Mitsubishi lineup.
Why Buy the MX600 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.
The MX600 conversation with Steve Brown starts differently from every other machine in the lineup. With MV-series machines, the first question is usually about part size or production volume. With the MX600, the first question is always about the application: what wire diameter do you actually need? What surface finish are you trying to hit in production — not on a demo cut? Are you cutting carbide and seeing degradation on your current machine? Do you need mirror quality without a polishing step?
The answers determine whether the MX600 is the right investment. Steve is direct about this: the MX600 is not the right machine for every shop. It's the right machine for shops with specific capability requirements that water-based EDM cannot meet. If your work has those requirements, there's no better option in the Mitsubishi lineup. If it doesn't, Steve will tell you that and point you toward the MV-R machine that fits your production instead.
That's the practical difference between buying from Iron Machine Tool and buying from a catalog:
- Application-first evaluation — Steve reviews your specific material, wire diameter requirement, and finish target before discussing the machine
- Honest fit assessment — if an MV1200-R or MV2400-R running finishing passes meets your requirements, Steve will tell you that and save you the MX600 investment
- Local coordination — Midwest-based service and support on a specialized machine that requires knowledgeable backup
The Support Infrastructure Behind Every Machine
Iron Machine Tool gives you full access to Mitsubishi's Triple Diamond Partnership Program — a complimentary preventative maintenance visit within the first year, remote360 monitoring capability, and Mitsubishi's dedicated parts supply chain. On a specialized machine like the MX600 where oil management, Nano-FS circuit maintenance, and granite base care are part of the operating picture, having a knowledgeable distributor in your region matters more than on standard production machines.
Contact Steve Brown at Iron Machine Tool to discuss your specific application — wire diameter requirement, surface finish target, material, and whether your current machine is limiting what you can produce. Ask about arranging a demonstration cut on your specific geometry and material.
Frequently Asked Questions | Mitsubishi MX600 Advance Plus
A: The MX600 uses oil-dielectric fluid. Every MV-series machine uses water. That single difference enables three capabilities the MV machines cannot match regardless of how they're set up: wire diameters down to 0.0008" (versus 0.004" minimum on MV machines), surface finishes to 1.4µ"Ra without polishing (versus approximately 4Ra on MV-R machines in finishing mode), and carbide cutting without cobalt depletion. You need the MX600 if your parts require wire below 0.004", if your surface finish requirements are below 4Ra and you want to eliminate the polishing step, or if you're cutting carbide and seeing material degradation from your current water-based EDM. If none of those apply to your current production, an MV-R machine running finishing passes is likely sufficient and significantly simpler to operate and maintain.
A: The 1.4µ"Ra figure is achievable in production conditions on the MX600, through the combination of oil-dielectric cutting, the Nano-FS finishing circuit, and granite base construction that reduces floating capacitance and improves spark consistency. "Production conditions" means on standard workpiece materials in normal machining operations with proper oil maintenance and setup not an optimized demonstration cut. That said, achieving the finest finishes consistently requires correct cutting conditions, appropriate oil quality, and proper machine setup. Steve Brown at Iron Machine Tool can discuss what that looks like for your specific material and geometry, and can arrange a demonstration cut if you want to validate the finish on your application before purchasing.
A: Cobalt depletion occurs because water-based dielectric creates an electrolytic environment around the workpiece during EDM. The electrical current passing through the water solution causes the cobalt binder in cemented carbide to leach out of the material surface creating a subsurface damage layer where the carbide grains are no longer fully bonded. This layer is softer, more brittle, and more susceptible to wear and fatigue than the bulk material. On carbide tooling that needs to perform at full hardness after EDM punches, dies, wear components, and precision carbide parts that damage layer is a direct quality problem. Oil dielectric does not create that electrolytic environment, so the leaching reaction doesn't occur. Carbide cut on the MX600 comes off the machine with full material integrity. If you're currently running carbide work on a water-based machine and accepting the surface degradation as unavoidable, it isn't the MX600 eliminates it.
A: The MX600 accommodates workpieces up to 24.4" × 24.0" × 3.9" (620 × 610 × 100 mm). The compact work envelope is by design the MX600 is an ultra-precision machine optimized for micro-geometry cutting and fine surface finishes, not large-format production. The oil-dielectric system, granite base, Nano-FS circuit, and precision linear-motion guideways that make the MX600 capable of 0.0008" wire and 1.4µ"Ra finish are not scaled for large workpieces. The maximum workpiece height of 3.9" reflects this the MX600 handles precision small-to-medium components, not mold bases or structural frames. If your application involves both fine-feature micro-geometry and large part size simultaneously, that's a conversation worth having with Steve Brown to determine the right approach.
A: Yes on both counts. Iron Machine Tool is the authorized Mitsubishi EDM distributor for the Midwest, based in Minneapolis, Minnesota. Steve Brown handles MX600 inquiries directly. Given the specialization of this machine, his approach is to understand your application requirements wire diameter, surface finish target, material, and current production constraint before the conversation turns to pricing. A demonstration cut on your specific material and geometry can be arranged through Mitsubishi's facility. Contact Iron Machine Tool to start that conversation. If the MX600 isn't the right fit for your work, Steve will tell you that directly rather than sell you a machine that doesn't solve your actual production problem.
Ready to Go Beyond What Water-Based EDM Can Do?
The MX600 does things no water-based wire EDM can do. If you're cutting carbide, chasing mirror finishes without polishing, or working with features that require wire below 0.004" this is the machine for that work. Contact Steve Brown at Iron Machine Tool to discuss your application and arrange a demonstration cut on your specific material and geometry.