Machine Comparison
Citizen Cincom A20 vs Star Micronics eCA-S20
Citizen Machinery vs Star Micronics · Swiss-Type Lathes
Summary
The Citizen Cincom A20 and the Star Micronics eCA-S20 are Swiss-type lathes for the same bar size: both take 20 mm bar, which Star writes as Ø20mm (25/32in). The makers publish few comparable figures for this pair, so the table has only two rows, turning diameter and number of axes.
On diameter the standard machines are equal; the Citizen lists 25 mm as an extra-cost option. The difference is in the axes: the Star has 10, the Citizen 7 including the C-axis. The Star's count suits parts with overlapping front and back operations, while the Citizen's suits turned parts with light cross drilling and milling at both ends.
Specifications Comparison
| Specification | Citizen Cincom A20 | Star Micronics eCA-S20 |
|---|---|---|
| Max Turning Diameter | 20 mm (25 option) | Ø20mm (25/32in) |
| Axes | 7 (including C-axis) | 10 |
Advantages
Citizen Cincom A20
- 25 mm turning diameter available as an extra-cost option, above the 20 mm both machines take as standard
- 7 axes including the C-axis, matched to turned parts with light cross drilling and milling at both ends
Star Micronics eCA-S20
- 10 axes against 7, for parts with overlapping front and back operations
- Back-end work that includes power-driven rear tooling
Verdict
With only turning diameter and axis count to compare, the choice rests on part complexity. Choose the Star Micronics eCA-S20 for parts with overlapping front and back operations, where its 10 axes are put to use. Choose the Citizen Cincom A20 for simpler turned parts with light cross work, or when some jobs need the optional 25 mm diameter. For spindle speeds, power and tooling, compare each machine's own page.