Goodway SW-20II
Image: goodwaycnc.com, Goodway
Key Specifications
Max Spindle
Spindle Power
max machining diameter
max turning length per chuck bush
max turning length per chuck bushless
spindle power 15 min
How much does the Goodway SW-20II cost?
Price estimate
We do not have a price for the Goodway SW-20II that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Goodway SW-20II is a Ø20 mm (0.8 in) Swiss-type turning center with a 10,000 rpm main spindle, 220 mm (8.7 in) of guide bush stroke and up to 10 cross live tools. Twenty millimetre machines are the volume class of sliding-head lathe, and this second-generation model is Goodway's entry in it; the maker says structural rigidity rose by 20% over the previous generation.
Buyers have a choice of sub-spindle that the larger SW-32II does not give them. The standard sub-spindle runs to 8,000 rpm and is rated 1.5 kW (2.0 hp) continuous, 2.2 kW (3.0 hp) for 15 min. The optional built-in sub-spindle matches the main spindle at 10,000 rpm and 2.2 kW continuous, 3.7 kW (5.0 hp) for 15 min. Parts with real back-end turning deserve the built-in unit. Parts that only need a cut-off burr removed do not.
Main spindle power is likewise 2.2 kW (3.0 hp) continuous and 3.7 kW (5.0 hp) on the 15 min. rating. Tooling consists of 6 O.D. tools on 12 mm (0.5 in) shanks, 4 I.D. tools in ER16 sleeves, and between 5 and 10 cross live tools at 8,000 rpm. Bushless operation is possible, with 50 mm (2.0 in) of length per chucking.
Back working uses 4 rear-end tools at 8,000 rpm as standard in the D variation. The Y variation replaces them with a Y2-axis tool post carrying 8 tools on 60 mm (2.4 in) of travel, which allows off-center drilling and milling on the back of the part. Goodway counts 6 axes on the series: X, Y, Z, XB, ZB and Y2.
Full Specifications
| Parameter | Value |
|---|---|
| Max Machining Diameter | Ø20 mm (0.8 in) |
| Max Turning Length per Chuck Bush | 220 mm (8.7 in) |
| Max Turning Length per Chuck Bushless | 50 mm (2.0 in) |
| Max Spindle Speed | 10,000 rpm |
| Spindle Motor Power | 2.2 kW (3.0 hp) (cont.) |
| Spindle Power 15 Min | 3.7 kW (5.0 hp) (15 min.) |
| Sub Spindle Speed Max | 8,000 rpm |
| Sub Spindle Power | 1.5 kW (2.0 hp) (cont.) |
| Sub Spindle Power 15 Min | 2.2 kW (3.0 hp) (15 min.) |
| Built in Sub Spindle Speed Max | 10,000 rpm |
| Built in Sub Spindle Power | 2.2 kW (3.0 hp) (cont.) |
| Built in Sub Spindle Power 15 Min | 3.7 kW (5.0 hp) (15 min.) |
| OD Tools | 6 |
| OD Tool Shank Size | □ 12 mm (0.5 in) |
| ID Tools | 4 |
| ID Tool Sleeve Size | ER16 |
| Cross Live Tools | 5 ~10 |
| Cross Live Tool Speed | 8,000 rpm |
| Back Max Chucking Diameter | Ø20 mm (0.8 in) |
| Back Max Length for Front Ejection | 80 mm (3.1 in) |
| Rear End Tools | 4 |
| Rear End Tool Speed | 8,000 rpm |
| Y2 Axis Backworking Tools | 8 (opt.) |
| Y2 Axis Travel | 60 mm (2.4 in) (opt.) |
| Guide Bush Design | Bush / Bushless |
Specifications sourced from goodwaycnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 10,000 rpm main spindle for small-diameter bar
- Choice of standard 8,000 rpm sub-spindle or optional built-in 10,000 rpm sub-spindle
- Between 5 and 10 cross live tools at 8,000 rpm
- Optional Y2-axis back tool post with 8 tools and 60 mm (2.4 in) of travel
- 220 mm (8.7 in) of turning length per chucking with the guide bush
Limitations
- Main spindle is rated 2.2 kW (3.0 hp) continuous
- The standard sub-spindle has only 1.5 kW (2.0 hp) continuous
- Bushless length per chucking is 50 mm (2.0 in)
- Y2-axis and built-in sub-spindle are options
Best For
Frequently Asked Questions
01
Bar size and speed. The SW-20II takes Ø20 mm (0.8 in) bar at 10,000 rpm with a 2.2 kW (3.0 hp) continuous spindle. The SW-32II takes Ø32 mm (1.3 in) at 7,000 rpm with 5.5 kW (7.4 hp) continuous, and has the built-in sub-spindle as standard.
02
The standard one runs to 8,000 rpm at 1.5 kW (2.0 hp) continuous and 2.2 kW (3.0 hp) for 15 min. The optional built-in sub-spindle runs to 10,000 rpm at 2.2 kW (3.0 hp) continuous and 3.7 kW (5.0 hp) for 15 min. Goodway describes the built-in type as high speed and low vibration.
03
Between 5 and 10 cross live tools at up to 8,000 rpm on the front. Goodway states that designated positions can take 90° live tooling, supporting up to 5 front and 2 back live tools. The back has 4 rear-end tools, or 8 with the Y2-axis option.
04
A back working tool post that moves 60 mm (2.4 in) in Y2 and holds 8 tools. Goodway says it enables off-center drilling, tapping and milling on the rear end of workpieces. It is an option, sold as the Y variation.
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