Proxxon Precision Lathe PD 250/E vs Sherline 8440 17" CNC Benchtop Lathe System (LinuxCNC)

Technical comparison · Turning (lathe)

In brief

Precision Lathe PD 250/E and 8440 17" CNC Benchtop Lathe System (LinuxCNC) are two turning (lathe) in a similar class. Choose Precision Lathe PD 250/E if price matters more; choose 8440 17" CNC Benchtop Lathe System (LinuxCNC) if distance between centers and swing over bed matters more. On the category's overall technical index, 8440 17" CNC Benchtop Lathe System (LinuxCNC) scores 63/100 against 30/100 for Precision Lathe PD 250/E.

Parameter
Identity
Use tier F2 — Intermediate F2 — Intermediate
Price
Price (€) ~1050–1370 € ~2800–3300 €
Universal specs
Dimensions (W×D×H) (cm) 27 × 56 × 17 cm 28.6 × 91.4 × 20.3 cm
Weight (kg) 12 kg 31.4 kg
Work area (mm) 430 × 110 mm
Power (W) 150 W
Voltage (V) 230 V 240 V
Maximum speed 3000 rpm 2800 rpm
Declared precision 0.05 mm 0.0127 mm
Category specs
Swing over bed (mm) 70 mm 90 mm
Distance between centers (mm) 250 mm 430 mm
Ecosystem
Cloud dependency No No
Software notes The system ships with an Ubuntu Linux computer and 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.

The differences that matter

  • Price: Precision Lathe PD 250/E 1210 € vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 3050 € — Precision Lathe PD 250/E wins (+152%)
  • Distance between centers: Precision Lathe PD 250/E 250 mm vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 430 mm — 8440 17" CNC Benchtop Lathe System (LinuxCNC) wins (+72%)
  • Swing over bed: Precision Lathe PD 250/E 70 mm vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 90 mm — 8440 17" CNC Benchtop Lathe System (LinuxCNC) wins (+29%)

Which one to choose

Choose Precision Lathe PD 250/E if…

you value price.

See the Precision Lathe PD 250/E sheet →

Choose 8440 17" CNC Benchtop Lathe System (LinuxCNC) if…

you value distance between centers and swing over bed.

See the 8440 17" CNC Benchtop Lathe System (LinuxCNC) sheet →

MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.