Mitsubishi EA28V Wire EDM

$180,000 - $280,000 Updated 2026-03-16

Key Specifications

Work Area (X x Y)

350 x 270 mm

Max Workpiece Weight

300 kg

Max Cutting Height

220 mm

Wire Diameter

0.1 - 0.3 mm

Standard Wire

0.25 mm brass

Cutting Speed

Up to 250 mm²/min

Overview

The Mitsubishi EA28V is a mid-range wire EDM machine designed for precision die and mold cutting, offering Mitsubishi Electric's AI pulse control technology and automatic wire threading for reliable unmanned production. The 350x270mm work table handles workpieces up to 800mm in the horizontal direction with a 220mm max cutting height, suitable for punch and die sets, plastic mold inserts, and medical device components. Mitsubishi's AE (Advance Expert) control with AI power control automatically optimizes cutting parameters based on real-time workpiece monitoring, reducing the need for manual power setting adjustments. The intelligent auto wire feeding system threads the 0.25mm wire through start holes reliably even after interruptions, enabling overnight unattended cutting. The EA28V is well established in toolroom and precision die manufacturing environments.

Full Specifications

Parameter	Value
Work Area (X X Y)	350 x 270 mm
Max Workpiece Weight	300 kg
Max Cutting Height	220 mm
Wire Diameter	0.1 - 0.3 mm
Standard Wire	0.25 mm brass
Cutting Speed	Up to 250 mm²/min
Surface Finish (Ra)	0.2 µm achievable
Positioning Accuracy	±0.002 mm
Control	Mitsubishi AMNC-35 with AI Pulse
Taper Cutting	Up to ±15 degrees

Strengths & Limitations

Strengths

AI pulse control automatically optimizes cutting parameters
Reliable auto wire threading for unattended overnight runs
0.2 µm Ra surface finish for mirror-quality die surfaces
Strong Mitsubishi Electric global service network
Compatible with 0.1mm fine wire for micro-EDM applications

Limitations

Work table smaller than GF Machining or Sodick competitors at similar price
Mitsubishi proprietary control requires training for Fanuc-trained operators
Max 220mm cutting height limits tall workpieces

Best For

Toolroom, die and mold shops, and precision component manufacturers requiring reliable wire EDM with AI-assisted parameter control for consistent overnight production.

Frequently Asked Questions

01 What does AI pulse control do on the Mitsubishi EA28V?

Mitsubishi's AI pulse control monitors the actual cutting gap conditions in real time and adjusts the electrical discharge pulse width, frequency, and servo position to maintain optimal cutting conditions. This reduces wire breaks and manual power setting adjustments, especially on interrupted or varying-thickness workpieces.

02 What wire diameters are compatible with the EA28V?

The EA28V accepts wire from 0.1mm to 0.3mm diameter. Standard cutting uses 0.25mm brass wire. Fine wire (0.1mm or 0.15mm) is used for narrow keyways, micro slots, and delicate die cavities. Coated wires are also compatible for improved cutting speed.