Mitsubishi Electric FA20S

Est. $120,000 – $200,000 Possible older model Specs verified 2026-03-28 · machinio.com Updated 2026-10-03

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 It may be a superseded or older model; the specifications below are as we last recorded them.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

19.7″ / 500 mm

Y Travel

13.8″ / 350 mm

Z Travel

11.8″ / 300 mm

Table Size

780 x 630 mm

Accuracy

±0.002 mm (±0.00008 in)

x y travel

400 x 300 mm (15.7 x 11.8 in)

How much does the Mitsubishi Electric FA20S cost?

Estimated price range

Est.$120,000 – $200,000

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

Punches, dies and inserts in workpieces up to 750 x 550 x 220 mm Carbide and tool steel work where an anti-electrolysis power supply is wanted Start holes down to 0.5 mm with automatic threading Tapered die clearances up to ±15°, or ±30° if the option is fitted

Frequently Asked Questions

01 What size workpiece fits the FA20-S?

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 What taper angle can the FA20-S cut?

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 Does the FA20-S have automatic wire threading?

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 What does the FA20-S need for installation?

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.