Mitsubishi Electric FA20-S
This model was not found in Mitsubishi Electric's current lineup when we checked on 2026-10-03 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
X Travel
Y Travel
Z Travel
Table Size
Accuracy
x y travel
How much does the Mitsubishi Electric FA20-S cost?
Estimated price range
Our best estimate for a wire edm in this class — not a quote from Mitsubishi Electric. Configuration moves it a long way.
Overview
The Mitsubishi Electric FA20-S is a wire EDM that the listed figures size for workpieces up to 750 x 550 x 220 mm on a 780 x 630 mm table. It is no longer in Mitsubishi Electric's current lineup, and the figures here are a guide for evaluating a used machine.
The generator is listed as Mitsubishi's Digital AE power supply, an anti-electrolysis bipolar pulse design. Anti-electrolysis generators are aimed at limiting the surface damage that deionized water can cause on carbide and tool steel during long cuts, which matters most on punches and dies that go into service without further finishing. Maximum cutting speed is given as 300 mm²/min in 50 mm steel.
Wire from 0.10 to 0.30 mm is accepted. Automatic wire threading is listed with water-jet assist, threading through a start hole of 0.5 mm or more. Taper capability is ±15°, with ±30° listed as optional, so a machine offered for wide-taper die work needs its option list checked.
Listed positioning accuracy is ±0.002 mm (±0.00008 in). The supply is 200 V three-phase at 50/60 Hz, the machine weighs about 2,800 kg (6,173 lb), and the tank capacity is 187 gallons of deionized water with built-in filtration and deionization. For a sense of size, the MV1200S has a 25.2 × 17.7 in (640 × 450 mm) table and weighs 5,952 lb (2,700 kg).
Full Specifications
| Parameter | Value |
|---|---|
| X Y Travel | 400 x 300 mm (15.7 x 11.8 in) |
| U V Travel | ±40 mm (±1.6 in) |
| Max Workpiece Dimensions | 750 x 550 x 220 mm |
| Max Cutting Speed | 300 mm²/min (in 50 mm steel) |
| Surface Finish | Ra 0.2 µm (final skim passes on steel) |
| Generator | Mitsubishi Digital AE power supply (anti-electrolysis bipolar pulse) |
| Auto Wire Threading | Yes — water-jet assist, threading through ≥0.5 mm start hole |
| Dielectric | Deionized water with built-in filtration/deionization |
| Power Supply | 200V, 3-phase, 50/60 Hz |
| Electrical | 200-230 V – Phase 3 |
| X Axis Travel | 400 mm (15.7 in) |
| Y Axis Travel | 300 mm (11.8 in) |
| Z Axis Travel | 220 mm (8.7 in) |
| U Axis Travel | ±80 mm (±3.1 in) |
| V Axis Travel | ±80 mm (±3.1 in) |
| Max Taper Angle | ±15° (±30° optional) |
| Max Workpiece Weight | 600 kg (1,323 lb) |
| Wire Diameter Range | 0.10 - 0.30 mm |
| Best Surface Finish | Ra 0.1 µm (4 µin) |
| Positioning Accuracy | ±0.002 mm (±0.00008 in) |
| Pulse Generator | DIGITAL AE-circuit |
| CNC Control | D-CUBES (Mitsubishi proprietary) |
| Machine Weight | ~2,800 kg (6,173 lb) |
| X-Axis Travel | 19.7″ / 500 mm |
| Y-Axis Travel | 13.8″ / 350 mm |
| Z-Axis Travel | 11.8″ / 300 mm |
| Table Size | 780 x 630 mm |
| Table Load Max | 3,300 lbs |
| Tank Capacity | 187 gallons |
| Coolant Capacity | 187 gallons |
| CNC Control | Mitsubishi M750 / M700 |
Specifications sourced from machinio.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Digital AE power supply, listed as an anti-electrolysis bipolar pulse design
- Automatic wire threading with water-jet assist through start holes of 0.5 mm and larger
- Listed cutting speed of 300 mm²/min in 50 mm steel
- Listed positioning accuracy of ±0.002 mm (±0.00008 in)
- Wire diameter range of 0.10 - 0.30 mm
Limitations
- The ±30° taper is optional; the base figure listed is ±15°
- The listed table carries two different sets of axis travels and two control names, so strokes and control have to be confirmed on the machine itself
- Workpiece height is limited to 220 mm in the listed maximum workpiece dimensions
- Needs a 200 V three-phase supply at 50/60 Hz and room for a 187 gallons tank
Best For
Frequently Asked Questions
01
The listed maximum workpiece dimensions are 750 x 550 x 220 mm and the table size is 780 x 630 mm. The listed figures are not consistent on axis travel or on weight capacity, so measure the strokes and read the load rating from the machine's own documentation before committing a large plate.
02
The maximum taper angle is listed as ±15°, with ±30° as an option. Whether a particular used machine has the wider-taper option fitted cannot be told from the table, so ask the seller and check the wire guides on the machine.
03
Yes. The listed figures show automatic wire threading with water-jet assist, threading through a start hole of 0.5 mm or larger. The wire diameter range is 0.10 - 0.30 mm; the table does not say whether threading works across that whole range.
04
The power supply is listed as 200V, 3-phase, 50/60 Hz, with a second row giving 200-230 V. Machine weight is about 2,800 kg (6,173 lb). The dielectric is deionized water with built-in filtration and deionization, and tank capacity is 187 gallons, so allow for the filled weight on the floor.
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