Machine Comparison
Makino BX3 vs Mitsubishi EA12V
Makino vs Mitsubishi Electric · Sinker EDM
Summary
The Makino BX3 and Mitsubishi EA12V are both listed as sinker EDMs, but they do different jobs. The BX3 is an EDM drilling machine for cooling film holes in turbine blades and vanes; the EA12V is a mid-range die-sinking machine for mold cavities, core pins and die inserts in hardened tool steel.
The EA12V has a little more X and Y travel, 400 mm (15.7 in) and 300 mm (11.8 in) against 370 mm (14.6 in) and 270 mm (10.6 in), and a far higher workpiece rating, 700kg against 20 kg (44 lb). The BX3 has the longer Z stroke, 750 mm (29.5 in) against 300 mm (11.8 in).
Specifications Comparison
| Specification | Makino BX3 | Mitsubishi EA12V |
|---|---|---|
| X-Axis Travel | 370 mm (14.6 in) | 400 mm (15.7 in) ▲ |
| Y-Axis Travel | 270 mm (10.6 in) | 300 mm (11.8 in) ▲ |
| Z-Axis Travel | 750 mm (29.5 in) ▲ | 300 mm (11.8 in) |
| Max Table / Workpiece Load | 20 kg (44 lb) | 700kg ▲ |
Advantages
Makino BX3
- 750 mm (29.5 in) Z travel against 300 mm (11.8 in)
- Built for EDM drilling of cooling film holes in turbine blades and vanes, including holes into hollow internal cavities
Mitsubishi EA12V
- 700kg workpiece load against 20 kg (44 lb)
- 400 mm (15.7 in) X and 300 mm (11.8 in) Y travel against 370 mm (14.6 in) and 270 mm (10.6 in)
- Suited to burning mold cavities, core pins and rib details in hardened tool steel
Verdict
These machines serve different processes. Choose the Makino BX3 for high-volume drilling of cooling holes in turbine blades, vanes and small aero-engine parts, where its 750 mm (29.5 in) Z travel applies. Choose the Mitsubishi EA12V for mold and die work, burning cavities and inserts in hardened steel on parts up to 700kg, far beyond the 20 kg (44 lb) rating of the BX3.