Tsugami S205A-II
Key Specifications
bar capacity
main spindle speed
sub spindle speed
spindle motor
axes
live tool speed
Overview
The Tsugami S205A-II is an enhanced 5-axis opposed gang tool Swiss-type CNC lathe with 20 mm (0.8 in) bar capacity. The 'A' suffix denotes an upgraded variant of the standard S205-II, typically incorporating additional automation features or capability enhancements while sharing the same core mechanical platform.
The fundamental specs mirror the S205-II: 200-10,000 RPM main and sub-spindles driven by a 2.2/3.7 kW motor, live tooling at 10,000 RPM, and up to 16 live tool positions. The opposed gang tool design with modular cartridge tooling remains the same, allowing pre-set tool changes that cut changeover downtime. The convertible guide bushing system supports both Swiss and chucker modes, with rapid traverse at 35 m/min.
What the 'A' designation adds to the package isn't fully documented in published specs, but in Tsugami's naming convention it typically signals enhanced automation capability -- think improved bar loading integration, better chip management, or additional programming features for production optimization. The estimated weight of 3,750 kg (8,267 lbs) and footprint of 2,325 x 1,270 x 1,970 mm are consistent with the base S205-II platform.
Note that some specifications are estimated from the S205-II base model. The S205A-II targets the same applications as the S205-II -- medical, automotive, electronics, and contract manufacturing -- but with enhancements oriented toward higher-volume or lights-out production scenarios. For shops already running S205-II machines, the A variant represents an incremental step up in production capability without a fundamentally different machine.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | 20 mm (0.8 in) |
| Main Spindle Speed | 200-10,000 RPM |
| Sub Spindle Speed | 200-10,000 RPM |
| Spindle Motor | 2.2/3.7 kW |
| Axes | 5 |
| Live Tool Speed | 10,000 RPM |
| Live Tool Positions | Up to 16 |
| Tool Positions Std Max | 25/39 (estimated from S205-II) |
| Rapid Traverse Rate | 35 m/min |
| Guide Bushing | Convertible (Swiss/chucker) |
| Machine Weight | 3,750 kg (8,267 lbs) (estimated) |
| Dimensions | 2,325 x 1,270 x 1,970 mm (estimated from S205-II) |
Specifications sourced from tsugami.co.jp — verified 2026-03-28
Strengths & Limitations
Strengths
- Enhanced 'A' variant offers improved automation features over the standard S205-II for higher-volume production
- 10,000 RPM live tooling speed enables productive milling and cross-drilling on 20mm bar stock
- Convertible guide bushing system covers both long slender parts and short chucker-mode parts on one machine
- Up to 16 live tool positions handle complex multi-feature parts without secondary operations
- Modular cartridge tool zone design enables fast changeovers with pre-set tooling cassettes
- 2.2/3.7 kW spindle motor has enough power for stainless and titanium at production speeds
Limitations
- 5-axis configuration lacks Y-axis for off-center milling; the S206A-II adds this if needed
- Specific 'A' variant enhancements aren't fully documented in publicly available specs
- Estimated 3,750 kg weight requires solid floor loading and complicates relocation
- Some specs are estimated from the base S205-II since the A variant isn't independently published
Best For
Frequently Asked Questions
01
In Tsugami's naming convention, the 'A' typically denotes an enhanced variant with additional automation or feature upgrades over the base model. The core mechanical platform (spindles, axes, tool zone) is shared with the S205-II, but the A variant adds production-oriented enhancements. Exact differences vary and aren't always fully published -- your Tsugami dealer can provide the specific enhancements for the current A-variant specification.
02
The S205A-II is a 5-axis machine, while the S206A-II adds a 6th axis (Y-axis) for off-center milling and drilling. If your parts need flats, hex profiles, or eccentric holes, the S206A-II is worth the premium. For parts that only require on-center turning, drilling, and threading, the S205A-II is fully capable and costs less.
03
Yes. The enhanced automation features of the A variant, combined with up to 39 tool positions for backup tooling, the modular cartridge system for quick changes, and a bar feeder, make the S205A-II capable of extended unattended operation. Pair it with a chip conveyor, coolant management system, and part catcher for a complete lights-out setup.
04
Standard 20mm Swiss-type bar feeders from LNS, IEMCA, FMB, and Edge Technologies all integrate with the S205A-II. Common pairings include the LNS Alpha 520 and IEMCA Boss 542 for 20mm bar stock. Hydrodynamic bar feeders are recommended for optimal surface finish and vibration control on Swiss operations.
05
The convertible guide bushing system allows switching between modes, though it's not a daily operation. Most shops settle on one mode for each part number and document the setup. The conversion takes an experienced operator roughly 30-60 minutes. For shops that frequently switch, the flexibility avoids purchasing separate Swiss and chucker machines.
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