Tsugami BW128Z-II
Key Specifications
Max Spindle
Tool Capacity
Rapid Traverse
Spindle Power
max machining diameter
sub spindle speed
How much does the Tsugami BW128Z-II cost?
Estimated price range
Our best estimate for a swiss-type lathe in this class — not a quote from Tsugami. Configuration moves it a long way.
Overview
Read the Z3 row before anything else on the Tsugami BW128Z-II. This eight-axis Swiss-type lathe for 12 mm (0.47 in) bar has a third Z axis, but its stroke is 5 mm (0.20 in), where the BW128Z-I has 60 mm (2.36 in). Every other figure in the two tables is the same, so a buyer comparing the pair is really deciding how much axial travel the third tool group needs.
Five millimetres is a short move. It allows the third group to advance and retract a tool, or make a shallow axial cut, but deep drilling from that group would need the 60 mm of the BW128Z-I. Parts whose holes are drilled from the main or back side do not depend on it.
The other axes follow the rest of the 12 mm BW range: 32 m/min on Z1, X2 and Z2, 24 m/min on Y1 and Y3, and 12 m/min on X1, X3 and Z3. There is no Y2 axis in the table, and tool capacity is 24 as standard. Machines that want Y2 as well are the BW128-II (no Z3) and the BW129Z-II (Y2 plus the same 5 mm Z3).
Main spindle speed is 12,000 rpm (rated 10,000 rpm) and back spindle speed 12,000 rpm (rated 8,000 rpm), both at 1.5/2.2 kW. The machine weighs 2,850 kg (6,283 lb) and occupies 2,010 × 1,505 × 1,750 mm (79.1 × 59.3 × 68.9 in).
Full Specifications
| Parameter | Value |
|---|---|
| Max Machining Diameter | 12 mm (0.47 in) |
| Max Spindle Speed | 12,000 rpm (rated 10,000 rpm) |
| Sub Spindle Speed | 12,000 rpm (rated 8,000 rpm) |
| Tool Capacity | 24 (standard) |
| Z3 Stroke | 5 mm (0.20 in) |
| Rapid Traverse Rate | 32 m/min (Z1, X2, Z2), 24 m/min (Y1, Y3), 12 m/min (X1, X3, Z3) |
| Spindle Motor Power | 1.5/2.2 kW |
| Sub Spindle Power | 1.5/2.2 kW |
| Floor Space Required | 2,010 × 1,505 × 1,750 mm (79.1 × 59.3 × 68.9 in) |
| Machine Weight | 2,850 kg (6,283 lb) |
Specifications sourced from tsugami.co.jp — verified 2026-10-03
Strengths & Limitations
Strengths
- Third Z axis, with a 5 mm (0.20 in) stroke, for short axial moves from the third tool group
- 12 mm (0.47 in) bar capacity with a main spindle running to 12,000 rpm (rated 10,000 rpm)
- Back spindle at 1.5/2.2 kW and 12,000 rpm (rated 8,000 rpm), matching the main spindle's power
- Z1, X2 and Z2 traverse at 32 m/min
- Same 2,010 × 1,505 × 1,750 mm (79.1 × 59.3 × 68.9 in) footprint as the rest of the 12 mm BW range
Limitations
- Z3 stroke is 5 mm (0.20 in) against 60 mm (2.36 in) on the BW128Z-I, which rules out deep axial work from that group
- No Y2 axis is listed, so the second tool group has no Y stroke
- 24 tools as standard, four fewer than the BW129Z-II
- Bar capacity stops at 12 mm (0.47 in)
Best For
Frequently Asked Questions
01
The table does not say which came first. What it shows is a different Z3 stroke: 5 mm (0.20 in) on the BW128Z-II, 60 mm (2.36 in) on the BW128Z-I. Everything else listed, from the 12 mm (0.47 in) bar capacity to the 2,850 kg (6,283 lb) weight, is identical.
02
It is enough to bring a tool on the third group into position and back, or to take a shallow axial cut such as a face or a chamfer. It is not enough to drill a hole of any depth from that group. If parts need that, the BW128Z-I gives 60 mm (2.36 in).
03
Eight are listed in the rapid traverse row: X1, Y1, Z1, X2, Z2, X3, Y3 and Z3. Z1, X2 and Z2 move at 32 m/min, Y1 and Y3 at 24 m/min, and X1, X3 and Z3 at 12 m/min.
04
Both the main and the back spindle are rated 1.5/2.2 kW. The main spindle reaches 12,000 rpm with a rated 10,000 rpm; the back spindle reaches 12,000 rpm with a rated 8,000 rpm. That suits small-diameter work where surface speed, not torque, sets the cycle.
