6840 17″ Ball Screw Benchtop Lathe

Sherline 6840 2020
Turning (lathe) F2 · Intermediate

A CNC-ready benchtop lathe with ball screws, solid 6061 aluminium base, and reinforced saddle: a mechanical platform well above entry-level, intended for users who plan to integrate their own stepper motors and CNC controller. The base configuration ships without a controller or driver box, which assumes the buyer has working knowledge of CNC systems and the wiring and software setup they require. The machine targets advanced hobbyists, prototypers, and small workshops engaged in consistent metal cutting.

Data from official source
Work area 430 × 116 mm (16.9 × 4.6 in)
Weight 21.4 kg (47.2 lb)

Editorial notes will be available once the sheet has been verified by the editorial team.

Parameter Value Source
Weight 21.4 kg (47.2 lb) manufacturer website
Power supply 240 V / 60 Hz manufacturer website
Work area 430 × 116 × 367 mm (16.9 × 4.6 × 14.4 in) manufacturer website
Maximum speed 2800 rpm manufacturer website
Declared precision 0.05 mm manufacturer website
Swing over bed 151 mm Compiled by editorial team
Distance between centers 430 mm Compiled by editorial team

Material compatibilities will be available in a future version.

Software

The 6840 is a CNC-ready machine: no controller is included in the base configuration. Buyers may choose from a 4-axis Linux driver box (with LinuxCNC), the Sherline/Acorn controller (based on Centroid CNC12, which supports Intercon conversational CAM), or any third-party controller compatible with NEMA 23 stepper motors. The MASSO G3 Touch is not available as an option on this model and is exclusive to the Accu-Pro line. G-code programs can be generated on any operating system using third-party CAM software.

Reviews from those who use this machine every day will be available in the next version of the platform.

How we verify this sheet

Technical data verified on the manufacturer's official website (recording date shown above). Editorial notes, market positioning and anomaly flags are assisted by the MakerSpecs AI system as a second reader, always validated by the author before publication. Read the full methodology →

Updates to this sheet and Manufacturer Notes
  1. Sheet published Specifications updated: launch year, nome, dimensioni, attribute.distance between centers mm, attribute.swing mm Price updated