RFQ Scope for a CNC Four-Roll Plate Rolling Machine
Buyers should define material, thickness and width scope, separate pre-bending from rolling, and list options and exclusions so suppliers quote comparable CNC four-roll machines.
Start your RFQ by deciding whether the machine must pre-bend as well as roll. The catalog reference lists 8 mm rolling thickness at 245 MPa yield limit but only 6 mm pre-bending thickness at the same yield limit, with a 2,500 mm bending width. If your parts need closed seams or minimal flat ends, state the pre-bending thickness you require and ask the supplier to confirm the machine configuration against that duty.
Make the RFQ comparable by asking each supplier to quote the same scope. Specify steel grade and yield limit, maximum plate thickness for rolling and for pre-bending, and maximum width. Ask whether the quoted CNC control, roll speed of 5 m/min and four-roll geometry are standard or optional, and request a demonstration or acceptance test using your thickness and width combination.
List exclusions explicitly: foundations, loading and unloading equipment, tooling, commissioning, training, and spare parts. Ask suppliers to identify any item they have excluded so gaps are visible before comparison.
Before requesting a quote, confirm with the supplier which catalog values apply to the offered model, how pre-bending capacity is defined, and what test piece will be used for acceptance.