Tsugami BW207-II
Key Specifications
max machinable diameter
axes
main spindle speed
back spindle speed
main spindle motor
tool positions
Overview
The Tsugami BW207-II is a 7-axis Swiss-type CNC automatic lathe from the Generation II BW series, handling parts up to 20 mm (0.79 in) diameter. It's the 20 mm counterpart to the BW127-II — the entry-level BW20x platform that provides independent opposed tool post benefits without the full 8 or 9-axis complexity.
With 7 axes and independent opposed tool posts, the BW207-II delivers meaningful cycle time improvements over traditional turret-based Swiss machines. Without the Z suffix, the rear tool post doesn't have its own Z-axis travel, which simplifies programming but limits simultaneous machining flexibility compared to the BW208Z-II and BW209Z-II. Both the main and back spindles reach 12,000 RPM with a 2.2/3.7 kW (3/5 hp) motor — strong specs for 20 mm class work.
The machine carries 28 tool positions and runs rapid traverse at 24 m/min on Y1/Y3, 15 m/min on Y2, and 12 m/min on X1/X3/Z3. The Generation II designation brings automatic programming software as standard, lowering the barrier for shops transitioning from simpler Swiss platforms.
At 2,010 x 1,505 x 1,750 mm and 2,900 kg (6,393 lbs), the BW207-II shares the same compact footprint as the entire BW-II range. The guide bushing system is selectable for both Swiss and guide-bushless modes. This machine makes sense for shops running 20 mm parts that benefit from independent opposed tool posts but don't need the extra axes and programming complexity of the Z-suffix or live-tooling variants.
Full Specifications
| Parameter | Value |
|---|---|
| Max Machinable Diameter | 3-20 mm (0.12-0.79 in) |
| Axes | 7 axes |
| Main Spindle Speed | 200-12,000 RPM |
| Back Spindle Speed | 200-12,000 RPM |
| Main Spindle Motor | 2.2/3.7 kW (3/5 hp) |
| Tool Positions | 28 |
| Rapid Traverse Rate | 24 m/min (Y1, Y3); 15 m/min (Y2); 12 m/min (X1, X3, Z3) |
| Guide Bushing | Yes (selectable) |
| Machine Weight | 2,900 kg (6,393 lbs) |
| Dimensions | 2,010 x 1,505 x 1,750 mm (79.1 x 59.3 x 68.9 in) |
Specifications sourced from tsugami.co.jp — verified 2026-03-28
Strengths & Limitations
Strengths
- 20 mm bar capacity handles a wide range of parts that 12 mm machines can't touch
- 28 tool positions provide ample capacity for complex turning operations
- 12,000 RPM dual spindles deliver strong speeds even for the larger 20 mm bar diameter
- 7-axis programming is more manageable than 9-axis, reducing CAM complexity and operator skill requirements
- Independent opposed tool posts cut non-cutting time compared to turret-based alternatives
- Generation II automatic programming software simplifies setup for routine parts
Limitations
- No Z-axis on rear tool post limits simultaneous machining compared to BW208Z-II and BW209Z-II
- No live tooling in the base configuration — milled features require a different machine or secondary ops
- 7 axes offers less overlap capability than the 8 and 9-axis variants for very complex parts
- Same footprint as the 9-axis variants means you're paying for floor space without maximum capability
Best For
Frequently Asked Questions
01
The BW207-II is a 7-axis machine without live tooling or Z-axis rear post, making it significantly simpler to program and less expensive. If your parts are primarily turning, threading, and grooving operations without milled features, the BW207-II delivers the independent tool post cycle time benefits at a lower cost and complexity level.
02
They share identical specs except bar capacity: 20 mm vs 12 mm. Both are 7-axis machines with 28 tool positions, 12,000 RPM spindles, and the same footprint. Choose based on your maximum part diameter requirement.
03
Yes, the machine accepts bar stock from 3 mm to 20 mm. Running smaller bar in a 20 mm capacity machine works fine, though you might get slightly better concentricity on very small parts using a 12 mm machine with a tighter guide bushing fit. For most applications, the BW207-II handles the full 3-20 mm range well.
04
Generation II adds automatic programming software as standard and includes rear tool post center alignment capability. These improvements reduce setup time and make the machine more accessible to operators who aren't multi-axis Swiss specialists.
