Machine Comparison
Star Micronics eCA-S20 vs Star Micronics eCA-S32T
Star Micronics vs Star Micronics · Swiss-Type Lathes
Summary
The Star Micronics eCA-S20 and Star Micronics eCA-S32T are both from Star Micronics's swiss-type lathes lineup, making this a common upgrade or lineup decision for shops already invested in the Star Micronics ecosystem. These machines are closely matched across most specifications, making the decision more about specific feature priorities, dealer support, and your existing shop ecosystem than raw spec advantages. Both machines are proven performers in production environments and represent solid investments for shops in the market for a swiss-type lathe.
Specifications Comparison
| Specification | Star Micronics eCA-S20 | Star Micronics eCA-S32T |
|---|---|---|
| Max Machining Diameter | 20 mm (25/32 in) | 32 mm (1-1/4 in) ▲ |
| Max Headstock Stroke | 205 mm (8 in) | 350 mm (13-25/32 in) ▲ |
| Main Spindle Speed | 10,000 RPM ▲ | 7,000 RPM |
| Main Spindle Power | 2.2 kW continuous / 3.7 kW (30 min), built-in motor drive | 5.5 kW continuous / 7.5 kW (5 min), built-in motor drive ▲ |
| Sub Spindle Speed | 10,000 RPM ▲ | 7,000 RPM |
| Sub Spindle Power | 2.2 kW continuous / 3.7 kW (30 min), AC spindle | 2.2 kW continuous / 3.7 kW (15 min), built-in motor drive |
| Power Driven Speed | 8,000 RPM ▲ | 5,700 RPM |
| C Axis Indexing | 0.01 degree minimum | 0.01 degree minimum |
| Guide Bushing | Non-guide bush (dedicated design) | Non-guide bush (dedicated design) |
| Power Consumption | 8.0 kVA | 8.0 kVA |
| Coolant Tank | 120 L | 230 L ▲ |
| Machine Weight | 3,500 kg (7,716 lb) | 5,700 kg (12,566 lb) ▲ |
| Dimensions | 2,588 x 1,150 x 1,765 mm | 3,175 x 1,745 x 1,860 mm ▲ |
| Price Range | $150,000 - $250,000 ▲ | $220,000 - $360,000 |
Advantages
Star Micronics eCA-S20
- Superior main spindle speed at 10,000 RPM vs 7,000 RPM
- Superior sub spindle speed at 10,000 RPM vs 7,000 RPM
- Superior power driven speed at 8,000 RPM vs 5,700 RPM
- More competitive pricing at $150,000 - $250,000 compared to $220,000 - $360,000
Star Micronics eCA-S32T
- Superior max machining diameter at 32 mm (1-1/4 in) vs 20 mm (25/32 in)
- Superior max headstock stroke at 350 mm (13-25/32 in) vs 205 mm (8 in)
- Superior main spindle power at 5.5 kW continuous / 7.5 kW (5 min), built-in motor drive vs 2.2 kW continuous / 3.7 kW (30 min), built-in motor drive
- Superior coolant tank at 230 L vs 120 L
- Superior machine weight at 5,700 kg (12,566 lb) vs 3,500 kg (7,716 lb)
Verdict
This is a close matchup. The Star Micronics eCA-S20 and Star Micronics eCA-S32T trade advantages across different specifications, making neither a clear winner on paper alone. Your decision should come down to practical factors: which dealer is closer, which control system your operators already know, what tooling ecosystem you're invested in, and which machine's specific strengths match your highest-volume work. Get quotes on both, run test cuts with your actual parts if possible, and factor in long-term service and support costs.