Machine Comparison
Star Micronics eCA-S32T vs Star Micronics SB-12R Type G
Star Micronics vs Star Micronics · Swiss-Type Lathes
Summary
The Star Micronics eCA-S32T and Star Micronics SB-12R Type G 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. On paper, the Star Micronics eCA-S32T edges ahead with advantages in 6 of the compared specifications, though real-world performance depends heavily on your specific applications and workholding. 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-S32T | Star Micronics SB-12R Type G |
|---|---|---|
| Max Machining Diameter | 32 mm (1-1/4 in) ▲ | 13 mm (33/64 in) |
| Main Spindle Speed | 7,000 RPM | 15,000 RPM ▲ |
| Main Spindle Power | 5.5 kW continuous / 7.5 kW (5 min), built-in motor drive ▲ | 2.2 kW continuous / 3.7 kW (10 min, 25% ED) |
| Sub Spindle Speed | 7,000 RPM | 12,000 RPM ▲ |
| Sub Spindle Power | 2.2 kW continuous / 3.7 kW (15 min), built-in motor drive ▲ | 0.55 kW continuous / 1.1 kW (15 min, 40% ED) |
| Guide Bushing | Non-guide bush (dedicated design) | Switchable (guide bush / non-guide bush) |
| Coolant Tank | 230 L ▲ | 180 L |
| Machine Weight | 5,700 kg (12,566 lb) ▲ | 1,750 kg (3,858 lb) |
| Dimensions | 3,175 x 1,745 x 1,860 mm ▲ | 2,070 x 1,177 x 1,760 mm |
| Price Range | $220,000 - $360,000 | $80,000 - $130,000 ▲ |
Advantages
Star Micronics eCA-S32T
- Superior max machining diameter at 32 mm (1-1/4 in) vs 13 mm (33/64 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 (10 min, 25% ED)
- Superior sub spindle power at 2.2 kW continuous / 3.7 kW (15 min), built-in motor drive vs 0.55 kW continuous / 1.1 kW (15 min, 40% ED)
- Superior coolant tank at 230 L vs 180 L
- Superior machine weight at 5,700 kg (12,566 lb) vs 1,750 kg (3,858 lb)
Star Micronics SB-12R Type G
- Superior main spindle speed at 15,000 RPM vs 7,000 RPM
- Superior sub spindle speed at 12,000 RPM vs 7,000 RPM
- More competitive pricing at $80,000 - $130,000 compared to $220,000 - $360,000
Verdict
The Star Micronics eCA-S32T holds a spec advantage in this comparison, but the right choice depends on your shop's priorities. If the Star Micronics eCA-S32T's strengths in areas like max machining diameter and main spindle power align with your work, it's the clear pick. The Star Micronics SB-12R Type G may still win on dealer proximity, existing tooling compatibility, or specific features that matter most to your applications. Request quotes from both dealers and, if possible, run your actual parts on each machine before deciding.