Know the Machine Before You Buy It
A buyer's research guide for used machine tools: records to request, inspection checklists and test-run advice.
A used machine tool can be a bargain or a boat anchor. The difference rarely shows in the photos. MachineDB is a buyer’s research guide: what to ask, what to inspect and what paperwork to collect before you commit to a used mill, lathe or machining center.
Research in three passes
Paper
Ask for manuals, maintenance logs, repair invoices and the control’s alarm history before you travel.
Look
Check ways, screws, spindle, turret, tool changer and electrics in person or by detailed video.
Run
Watch it home, warm up, cut and change tools under power. A cold, silent machine hides its faults.
The full set of checks is in the used machine inspection checklist.
Costs that hide behind the price tag
Rigging
Moving several tonnes safely needs proper equipment and crews.
Power
Three-phase supply, transformers or converters may be needed.
Tooling
Holders, chucks and vises are often sold separately.
Recovery
Lost parameters or a dead battery can turn a deal into a project.
Buyers ask
- What records should I ask for when buying a used machine?
- Why should I see a used machine run under power?
- What do spindle hours really tell me?
Start your research
Build a machine file before you buy. A simple way to keep facts, photos and answers in one place, so you compare machines on evidence, not hope.
Research a used machine tool before you buy it