A lathe concentric card keeps a clear record of concentricity checks and chuck wipes at your CNC or manual lathe. It helps teams maintain accuracy and traceability.
A lathe concentric card is a printed log kept on the wall or pinboard next to your lathe. It is used to record concentricity checks and chuck cleaning, so every operator can see when and how the machine was last checked. This habit is practical for any shop where lathes are shared between shifts or operators.
Production managers, toolrooms, technical high schools and most multi-operator workshops benefit from using these cards. They support safe handovers, good operator habits and quick troubleshooting when machined parts start to show runout or repeatability issues. Even for one-person workshops, a concentric card helps with traceability when quoting or proving your work to clients or auditors.
The concentric card is simple to fill in. For each shift, job or operator handover, record the key details clearly. Each entry should be made immediately after checking the machine, before starting any new workpiece.
The card is designed to be clean and direct, so it never runs longer than a single page. If you need to track more events, request additional copies or split the record by week.
Over a month, keep the card visible and make entries consistently. This gives every operator a running history of the lathe’s condition and highlights patterns, such as gradual changes in runout or missed chuck wipes. If you have multiple shifts or machines, keep a separate card at each lathe and update at every changeover.
If the card starts to show a rising trend in runout or repeated issues, stop and investigate before running further jobs. Check for worn jaws, dirt or swarf behind the chuck, or spindle bearing wear. If needed, call our service team to inspect or help with setup. A well-kept card is proof of your maintenance and a useful tool for troubleshooting and compliance audits.
