Tsugami BW128Z-I
Key Specifications
Max Spindle
Tool Capacity
Rapid Traverse
Spindle Power
max machining diameter
sub spindle speed
How much does the Tsugami BW128Z-I 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
On the Tsugami BW128Z-I the defining row is Z3: a third Z axis with 60 mm (2.36 in) of stroke, added to a Swiss-type lathe that takes bar up to 12 mm (0.47 in). The rapid row lists eight axes in all (X1, Y1, Z1, X2, Z2, X3, Y3 and Z3), and there is no Y2. Tool capacity is 24 as standard.
Why Z3 matters: with an axial stroke of its own, the third tool group can drill, bore or tap along the part axis while the other groups are busy, instead of waiting for a Z move from elsewhere. Sixty millimetres is enough for real hole depth on parts this small. The BW128Z-II looks identical on paper except that its Z3 stroke is only 5 mm (0.20 in), so the suffix is worth checking on any quote or used listing.
Z3 traverses at 12 m/min, the same as X1 and X3. Z1, X2 and Z2 run at 32 m/min and Y1 and Y3 at 24 m/min.
The two spindles are evenly matched. Each is rated 1.5/2.2 kW; the main spindle reaches 12,000 rpm (rated 10,000 rpm) and the back spindle 12,000 rpm (rated 8,000 rpm). For a part this size those speeds keep surface speed reasonable on both the front and the cut-off end.
It weighs 2,850 kg (6,283 lb), the same as the BW127-II, and needs a floor area of 2,010 × 1,505 mm with a height of 1,750 mm (79.1 × 59.3 × 68.9 in overall).
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 | 60 mm (2.36 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
- Z3 axis with a 60 mm (2.36 in) stroke for axial work from the third tool group
- Takes bar up to 12 mm (0.47 in) with a 12,000 rpm (rated 10,000 rpm) main spindle
- Back spindle rated 1.5/2.2 kW like the main spindle, up to 12,000 rpm (rated 8,000 rpm)
- 32 m/min rapids on Z1, X2 and Z2
- Same 2,850 kg (6,283 lb) weight as the seven-axis BW127-II
Limitations
- No Y2 axis: the BW129Z-I adds one at 15 m/min along with the same 60 mm Z3
- 24 tools as standard, against 28 on the BW128-II and BW129Z-I
- Z3 moves at 12 m/min, much slower than the 32 m/min Z1, X2 and Z2 axes
- Limited to 12 mm (0.47 in) bar
Best For
Frequently Asked Questions
01
Only the Z3 stroke differs in Tsugami's table. The BW128Z-I has 60 mm (2.36 in) of Z3 travel, the BW128Z-II has 5 mm (0.20 in). Bar capacity, spindles, the 24-tool count, rapid rates and the 2,850 kg (6,283 lb) weight are the same.
02
No. Its rapid traverse row lists X1, Y1, Z1, X2, Z2, X3, Y3 and Z3. For a Y2 axis as well as the 60 mm Z3, look at the BW129Z-I, which lists Y2 at 15 m/min and carries 28 tools.
03
The main spindle runs to 12,000 rpm and is rated 10,000 rpm. The back spindle also reaches 12,000 rpm, rated 8,000 rpm. Both are rated 1.5/2.2 kW.
04
The footprint is 2,010 × 1,505 × 1,750 mm (79.1 × 59.3 × 68.9 in) and the weight 2,850 kg (6,283 lb). The table does not say whether a bar feeder is included in that length, so confirm it when planning the floor.
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