Sherline 8400A 8" CNC Tabletop Lathe System Package A (LinuxCNC) vs Sherline 8440A 17″ CNC Benchtop Lathe System Package A
Technical comparison · Turning (lathe)
Same control system, same workable diameter: the two CNC lathes differ in the length of workpiece they accept between centers, 200 mm against 430 mm. In the catalog the longer model is also the cheaper one.
| Parameter | ||
|---|---|---|
| Identity | ||
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~2800–3400 € | ~2000–2200 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 26.7 × 59.7 × 21.6 cm | 28.6 × – × 20.3 cm |
| Weight (kg) | 28.6 kg | 31.4 kg |
| Work area (mm) | 200 × 110 mm | 430 × 110 mm |
| Voltage (V) | 240 V | 240 V |
| Maximum speed | 2800 rpm | 2800 rpm |
| Declared precision | 0.0127 mm | 0.0127 mm |
| Category specs | ||
| Swing over bed (mm) | 90 mm | 90 mm |
| Distance between centers (mm) | 200 mm | 430 mm |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The system includes an Ubuntu Linux computer with LinuxCNC preinstalled for 4-axis control, with the driver board and power supply already fitted. The tailstock spindle remains manually controlled. Utilities to convert CAD files or TrueType fonts into G-code are included; only a monitor must be supplied. | The system includes a PC running Ubuntu Linux with LinuxCNC pre-installed, along with a 4-axis driver board built into the computer chassis. A CD with complete instructions and utilities to convert CAD files and TrueType fonts into G-code is included. The operator must supply an external monitor; keyboard and mouse are provided. LinuxCNC is an open-source CNC control package running real-time on the Linux kernel and is compatible with standard G-code formats. |
The differences that matter
- 200 → 430 mm between centers: the longer one takes a shaft more than twice as long, the shorter one only spindle-sized parts.
- 90 mm swing over the bed on both: moving up to the long model does not let you turn wider parts.
- About €2,800–3,400 → about €2,000–2,200: in the catalog's prices the longer model costs less.
- PC with 4-axis LinuxCNC, no monitor, on both: the monitor has to be bought separately either way.
Which one to choose
Choose 8400A 8" CNC Tabletop Lathe System Package A (LinuxCNC) if…
You turn short parts, up to 200 mm between centers, and a compact footprint is enough: 26.7 × 59.7 cm. The trade-off: a longer shaft cannot be turned, and the listed price is higher, about €2,800–3,400 against €2,000–2,200.
Choose 8440A 17″ CNC Benchtop Lathe System Package A if…
You turn shafts and pins up to 430 mm between centers, for about €2,000–2,200. The trade-off: length grows but diameter does not, since the swing over the bed stays at 90 mm as on the other one, and the machine weighs 31.4 kg against 28.6.
Where to buy
MakerSpecs is an independent atlas. We don't sell products: the purchase links are the same as on the two product sheets and don't influence the verdict. The sheets have the complete data.