Goodway SK-38
Image: goodwaycnc.com, Goodway
Key Specifications
Max Spindle
Spindle Power
max machining diameter bush
max machining diameter bushless
max turning length per chuck bush
max turning length per chuck bushless
How much does the Goodway SK-38 cost?
Price estimate
We do not have a price for the Goodway SK-38 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 SK-38 is the most heavily equipped sliding-head lathe in Goodway's range: Ø38 mm (1.5 in) bar through the guide bush, a B-axis tool unit, a Y2-axis back tool post and up to 9 controlled axes. Where the SW machines are production Swiss lathes, the SK-38 is built for parts with angled holes and contoured features that would otherwise go to a mill.
Main and sub-spindle are built-in motor types, both running to 7,000 rpm. The main spindle is rated 7.5 kW (10.1 hp) continuous and 11 kW (14.8 hp) for 10 min., the sub-spindle 3.7 kW (5.0 hp) and 5.5 kW (7.4 hp). With the guide bush fitted, one chucking turns 320 mm (12.6 in) of length. The machine can also run bushless, where capacity rises to Ø42 mm (1.7 in) but length per chucking falls to 95 mm (3.7 in). Bushless running wastes less bar and suits short parts.
Tooling sits on a gantry type structure. There are 7 O.D. turning tools on 16 mm or 20 mm (0.8 in) shanks, 5 I.D. tools and 4 cross live tools with ER20 collets at 6,000 rpm. The B-axis unit carries 3 live tools facing the main spindle and 3 facing the sub-spindle, ER16, driven by a 2.2 kW (3.0 hp) motor. Goodway states that the B-axis indexes within a range of 135° and supports 4 axes simultaneous contour milling.
For the back of the part, 8 rear-end tools run at up to 6,000 rpm, and the Y2-axis moves them 69 mm (2.7 in). Five variations, A, C, D, Y and B, add these systems step by step.
Full Specifications
| Parameter | Value |
|---|---|
| Max Machining Diameter Bush | Ø38 mm (1.5 in) |
| Max Machining Diameter Bushless | Ø42 mm (1.7 in) |
| Max Turning Length per Chuck Bush | 320 mm (12.6 in) |
| Max Turning Length per Chuck Bushless | 95 mm (3.7 in) |
| Max Spindle Speed | 7,000 rpm |
| Spindle Motor Power | 7.5 kW (10.1 hp) (cont.) |
| Spindle Power 10 Min | 11 kW (14.8 hp) (10 min.) |
| Sub Spindle Speed Max | 7,000 rpm |
| Sub Spindle Power | 3.7 kW (5.0 hp) (cont.) |
| Sub Spindle Power 10 Min | 5.5 kW (7.4 hp) (10 min.) |
| OD Tools | 7 |
| OD Tool Shank Size | □ 16 mm (0.6 in) / 20 mm (0.8 in) |
| ID Tools | 5 |
| Cross Live Tools | 4 |
| Cross Live Tool Speed | 6,000 rpm |
| Cross Live Tool Sleeve Size | ER20 |
| Back Max Chucking Diameter | Ø38 mm (1.5 in) |
| Back Max Length for Front Ejection | 150 mm (5.9 in) |
| Rear End Tools | 8 |
| Rear End Tool Speed | 6,000 rpm |
| B Axis Cross Live Tools | 2 |
| B Axis Cross Live Tool Sleeve Size | ER20 |
| B Axis Live Tools | 3 (Front) / 3 (Rear) |
| B Axis Live Tool Sleeve Size | ER16 (Front) / ER16 (Rear) |
| B Axis Live Tool Drive Motor | 2.2 kW (3.0 hp) |
| B Axis Live Tool Speed | 6,000 rpm |
| Y2 Axis Backworking Tools | 8 |
| Y2 Axis Travel | 69 mm (2.7 in) |
| Guide Bush Design | Bush / Bushless |
Specifications sourced from goodwaycnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- B-axis live tooling: 3 tools to the front and 3 to the rear, indexing within 135°
- Y2-axis back tool post with 8 tools and 69 mm (2.7 in) of travel
- Hybrid guide bush: Ø38 mm (1.5 in) with bush or Ø42 mm (1.7 in) bushless
- Built-in main spindle rated 11 kW (14.8 hp) for 10 min. at up to 7,000 rpm
- 320 mm (12.6 in) of turning length per chucking with the guide bush
Limitations
- B-axis and Y2-axis exist only in the B and Y variations; the base A model has neither
- Live tool speed is 6,000 rpm throughout
- Bushless turning length is 95 mm (3.7 in) per chucking
- The B-axis live tool motor is 2.2 kW (3.0 hp), suited to small cutters
Best For
Frequently Asked Questions
01
Ø38 mm (1.5 in) when running with the guide bush and Ø42 mm (1.7 in) in bushless mode. Maximum turning length per chucking is 320 mm (12.6 in) with the bush and 95 mm (3.7 in) without. The sub-spindle chucks up to Ø38 mm (1.5 in).
02
It tilts a group of live tools so the machine can drill, tap and mill at an angle. Goodway lists 3 front and 3 rear live tools with ER16 collets, a 2.2 kW (3.0 hp) drive and 6,000 rpm, indexing within a range of 135° with a minimum increment of 0.001°.
03
Five. A is the basic model. C adds a sub-spindle. D adds a backworking tooling system to that. Y adds the Y2-axis, and B adds the B-axis on top of everything else. Goodway describes up to 9 axes control.
04
On the main side: 7 O.D. tools, 5 I.D. tools and 4 cross live tools. On the back: 8 rear-end tools, on the Y2-axis in the Y and B variations. The B-axis unit adds 2 cross live tools and 3 plus 3 angled live tools.
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