Factory Acceptance Checks for a CNC Four-Roll Plate Rolling Machine
How buyers can turn rated thickness, pre-bending, width, and roll speed into practical pass or fail checks during a factory acceptance test.
A buyer should decide up front whether the factory acceptance test will prove the machine against its rated duty or merely show that it runs. For a CNC four-roll plate rolling machine, the practical choice is to test with steel plate at the stated 245 MPa yield limit, because the catalog reference values of 8 mm rolling thickness, 6 mm pre-bending thickness, and 2,500 mm bending width are only meaningful under that condition.
Build the test around questions the supplier must answer in the quotation: which plate size and yield strength will be used for the rolling pass, and which for the pre-bending pass? Will the pre-bend be measured on the finished edge, and how? What tolerance defines pass or fail for roundness and edge alignment? For speed, ask how 5 m/min roll speed is verified and whether it holds under load.
Agree acceptance records in advance: material certificates, measured dimensions, and a signed test sheet. A demonstration without defined plate, measurements, and limits is not a pass or fail check.
Before requesting a quote, confirm with the supplier which test material will be supplied, how pre-bending and rolling results will be measured, and what documentation will accompany the acceptance test.