Factory Acceptance Checks for a Flat-Bed CNC Lathe
Buyers should agree pass or fail criteria for a flat-bed CNC lathe before the factory acceptance test, covering geometry, spindle, machining results, and documentation.
Before signing off a flat-bed CNC lathe, decide how each acceptance check will be judged: a measured value against an agreed tolerance, or a simple pass or fail. For a lathe intended for steel and aluminum machining, ask the supplier to propose checks for bed geometry, spindle runout, and positional accuracy, and to state the instrument and method used for each.
Use the catalog values only as reference points when framing questions. The listed swing over bed is 500 mm and swing over cross slide is 280 mm; confirm how these are measured on the offered model. The spindle bore is 82 mm, and workpiece length options are 750 / 1,000 / 1,500 / 1,500 / 2,000 mm; ask which bed length is being tested and whether the test piece suits it.
For a demonstration, request a test cut in steel and one in aluminum, with agreed dimensional and surface checks. Define who supplies material, how many parts are run, and what result counts as failure.
Before requesting a quote, confirm with the supplier which acceptance checks are included, the tolerances and instruments used, who witnesses the test, and what documentation is provided.