Mitsubishi Electric GX-F Advanced
Key Specifications
Accuracy
x axis travel
y axis travel
z axis travel
u v axis travel
max workpiece weight
Overview
The Mitsubishi Electric GX-F Advanced is a high-precision wire EDM machine in Mitsubishi's GX series, designed for applications requiring exceptional surface quality and geometric accuracy on precision tooling, medical components, and aerospace parts. The GX-F Advanced positions above the FA series with tighter positioning accuracy, improved surface finish capability, and enhanced anti-electrolysis technology for precision work in titanium and other materials sensitive to electrolytic corrosion during EDM processing.
The machine provides 350 x 250 x 220 mm (13.8 x 9.8 x 8.7 in) X/Y/Z travels with full U/V 4-axis taper cutting. The AE2 pulse generator delivers surface finishes down to Ra 0.05 µm (2 µin) — mirror-quality surfaces achievable without hand finishing — through optimized multi-pass skim cutting cycles. Wire diameter range of 0.05 mm to 0.30 mm opens access to ultra-fine feature cutting with 0.05 mm wire that enables feature sizes and corner radii impossible with standard 0.10-0.20 mm wire.
Mitsubishi's advanced anti-electrolysis technology suppresses the chemical reactions between deionized water and workpiece surfaces that can cause surface oxidation and micro-cracking, which is particularly important for titanium alloys used in aerospace and medical applications. The V350 glass scale feedback system provides 0.1 µm resolution for the positional accuracy that precision die work demands. Submerged cutting in a full-submersion tank further reduces thermal gradients across the workpiece.
At $280,000-$380,000, the GX-F Advanced is positioned above the FA20S and targets the premium precision end of the wire EDM market. It competes with the Sodick AQ750L and GF Machining Solutions Cut SP 600 in the high-precision wire EDM segment. Shops requiring Ra 0.05 µm finish and 0.05 mm wire capability for ultra-precision tooling and medical work will find the GX-F Advanced appropriate for their requirements.
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 350 mm (13.8 in) |
| Y Axis Travel | 250 mm (9.8 in) |
| Z Axis Travel | 220 mm (8.7 in) |
| U V Axis Travel | ±100 mm (±3.9 in) |
| Max Workpiece Weight | 400 kg (882 lb) |
| Wire Diameter Range | 0.05 - 0.30 mm |
| Best Surface Finish | Ra 0.05 µm (2 µin) |
| Positioning Accuracy | ±0.001 mm (±0.00004 in) |
| Scale Resolution | 0.1 µm |
| Pulse Generator | AE2 (Advanced anti-electrolysis) |
| CNC Control | D-CUBES Advanced |
| Machine Weight | ~2,500 kg (5,512 lb) |
Strengths & Limitations
Strengths
- Ra 0.05 µm mirror surface finish eliminates hand polishing requirements on precision wire-cut tooling surfaces
- 0.05 mm minimum wire diameter enables ultra-fine feature cutting with corner radii under 0.04 mm
- ±0.001 mm positioning accuracy with 0.1 µm scale resolution delivers die-making precision for precision tooling
- Advanced anti-electrolysis technology prevents surface oxidation and micro-cracking in titanium, copper, and sensitive alloys
- Submerged cutting in full-submersion tank reduces thermal distortion on precision workpieces
- V350 glass scale feedback provides direct measurement of axis position for highest accuracy
Limitations
- 350 x 250 mm travel is compact — large die blocks and mold inserts require the FA series or larger
- 400 kg workpiece weight limit is a constraint for heavier tooling applications
- 0.05 mm wire is fragile and requires careful machine setup, clean dielectric, and optimal cutting conditions to avoid wire breaks
- $280K-$380K investment is justified only for applications genuinely requiring sub-micron EDM accuracy and Ra 0.05 µm finish
- D-CUBES Advanced control requires operator familiarity — not interchangeable with GF or Sodick controls
Best For
Frequently Asked Questions
01
Standard wire EDM uses a DC pulse that causes electrolytic reactions between the deionized water and the workpiece, which can oxidize the workpiece surface and create micro-cracks in sensitive materials like titanium. Anti-electrolysis (AE) technology uses alternating polarity pulses that cancel the electrolytic effect, producing cleaner surfaces and preventing sub-surface damage. It is essential for titanium and important for cobalt-chrome alloys.
02
With 0.05 mm wire, the GX-F Advanced can cut slots as narrow as 0.06-0.07 mm and achieve internal corner radii as small as 0.04 mm. This is significantly smaller than the 0.10-0.13 mm corner radii achievable with standard 0.20 mm wire. Ultra-fine wire cutting is slower — expect 5-10x longer cut times versus 0.20 mm wire on the same profile.
03
Both are high-precision wire EDMs with similar positioning accuracy (±0.001 mm). The Sodick AQ750L uses linear motors; the Mitsubishi GX-F Advanced uses glass scale feedback with servo drives. Both achieve Ra 0.05 µm or better in fine-finish mode. The Mitsubishi has stronger North American service support; the Sodick is preferred in shops that prioritize linear motor direct drive. Performance is comparable for most high-precision applications.
04
New GX-F Advanced machines typically price between $280,000 and $380,000 depending on configuration and options. This positions it above the FA20S ($180K-$280K) for shops requiring higher precision and 0.05 mm wire capability. The investment is justified for precision die shops and medical/aerospace manufacturers where the machine's capabilities directly eliminate costly rework and finishing operations.
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