Tsugami SS207-II
Key Specifications
bar capacity
main spindle speed
sub spindle speed
spindle motor
axes
tool positions
Overview
The Tsugami SS207-II is a 7-axis opposed gang tool Swiss-type CNC lathe with 20 mm (0.79 in) bar capacity, representing a significant step up from the 5 and 6-axis S-series machines. Seven axes means you get X1, Y1, Z1, X2, Y2, Z2, and C-axis control, enabling simultaneous machining on both the main and sub-spindle sides with full Y-axis capability on each.
The SS207-II runs 200-10,000 RPM on both spindles with a 2.2/3.7 kW (3/5 hp) motor. The tool zone is where this machine really separates itself: 37 standard tool positions with 13/15 live tool stations. The modular tool zone uses Tsugami's cartridge-type live tools for efficient changeovers. With the guide bushing installed, you get 210 mm (8.65 in) of machining length; in chucker mode, 45 mm (1.77 in).
The FANUC 31i-B5 control is a step above the 32i-B found on the S-series -- it's a full 5-path capable control that handles the 7-axis coordination with headroom to spare. This matters when you're running simultaneous operations on both spindles with live tooling engaged. Rapid traverse stays at the same quick pace for positioning.
At 3,745 kg (8,267 lbs) and 2,325 x 1,270 x 2,010 mm (91.54 x 50 x 79.13 in), the SS207-II occupies roughly the same floor space as the S206-II but stands slightly taller. The machine is built for parts that demand the extra axes -- think complex medical implants, aerospace connectors with multiple off-center features, and watch components with contoured geometries. If the S206-II's 6 axes aren't enough, the SS207-II gives you the flexibility to handle nearly anything the 20mm bar class can throw at it.
Full Specifications
| Parameter | Value |
|---|---|
| Bar Capacity | 20 mm (0.79 in) |
| Main Spindle Speed | 200-10,000 RPM |
| Sub Spindle Speed | 200-10,000 RPM |
| Spindle Motor | 2.2/3.7 kW (3/5 hp) |
| Axes | 7 |
| Tool Positions | 37 |
| Live Tool Positions | 13/15 |
| Headstock Stroke With Guide Bushing | 210 mm (8.65 in) |
| Headstock Stroke Without Guide Bushing | 45 mm (1.77 in) |
| Guide Bushing | Convertible (Swiss/chucker) |
| CNC Control | FANUC 31i-B5 |
| Machine Weight | 3,745 kg (8,267 lbs) |
| Dimensions | 2,325 x 1,270 x 2,010 mm (91.54 x 50 x 79.13 in) |
Specifications sourced from tsugami.co.jp — verified 2026-03-28
Strengths & Limitations
Strengths
- 7-axis configuration with Y1 and Y2 enables simultaneous off-center machining on both main and sub-spindle sides
- 37 tool positions with 13-15 live stations is one of the highest counts in the 20mm Swiss class
- FANUC 31i-B5 control is a premium 5-path platform that smoothly handles complex 7-axis interpolation
- Convertible guide bushing system covers both long Swiss parts (210mm) and short chucker parts (45mm)
- Modular cartridge-type tool zone enables fast offline pre-setting and changeover
- 2.2/3.7 kW spindle motor handles stainless steel and titanium at production speeds
Limitations
- 7-axis programming complexity requires experienced operators or quality Swiss-type CAM software
- Higher price point than 5 or 6-axis alternatives -- only justified when parts genuinely need the extra axes
- FANUC 31i-B5 control is more expensive to service than the 32i-B or 0i-TF found on simpler models
- 3,745 kg weight and taller 2,010mm height may be constraints in low-ceiling shops
Best For
Frequently Asked Questions
01
Seven axes are justified when your parts have off-center features on both the front and back sides that need to be machined simultaneously. Think of a medical bone screw with a hex drive on one end and an off-center cross-hole on the other, produced in a single cycle. If you can get the part done in 5 or 6 axes, you don't need to pay for the extra complexity. But when you need it, nothing else will do.
02
Both are 7-axis machines, but the SS207-II-5AX adds a servo-driven swiveling B-axis that enables true simultaneous 5-axis machining with continuous tool path control. The standard SS207-II does indexed Y-axis positioning but doesn't have the B-axis contouring capability. The 5AX version is for parts that need sculpted surfaces or compound angles that can't be produced with indexed positioning alone.
03
The 31i-B5 is a higher-tier control with 5-path capability, faster processing speed, and more memory. It handles complex multi-axis interpolation more smoothly than the 32i-B, which matters when you're running simultaneous operations across 7 axes. The trade-off is higher upfront cost and more expensive service. For a 7-axis machine, the 31i-B5 is the right choice.
04
Absolutely. The 2.2/3.7 kW spindle motor and 200-10,000 RPM range are suitable for titanium grades commonly used in medical (Ti-6Al-4V, CP Grade 2) and aerospace applications. You'll typically turn at 500-2,000 RPM with proper carbide tooling. The machine's rigidity and thermal stability handle the sustained cutting forces well.
05
PartMaker (Autodesk), ESPRIT, and GibbsCAM all support 7-axis Swiss-type programming with simulation. You'll want a CAM package that can visualize and verify the simultaneous operations across all 7 axes before sending code to the machine. Post-processor support for the FANUC 31i-B5 is widely available.
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