Factory Acceptance Checks for a Wet Grid Ball Mill
A buyer's guide to defining practical pass or fail checks for a wet grid ball mill, using catalog reference values only as a starting point for RFQ and acceptance discussions.
Before signing off a wet grid ball mill for ore grinding, decide how you will verify that the unit matches your duty rather than simply running it briefly. Start with dimensional and nameplate checks: confirm the mill cylinder measures 900 × 1,800 mm, the motor is rated 22 kW, effective volume is 0.9 m³, and the maximum grinding-ball load is 1.92 t. Treat these as catalog reference values and ask the supplier to state the corresponding values for the offered model.
Build pass or fail items around observable evidence. Can the supplier show the cylinder and motor nameplate against the purchase specification? Does a no-load run demonstrate correct rotation direction and acceptable vibration and temperature behavior? With the specified ball charge, does the mill draw current consistent with the 22 kW motor without tripping? Ask how the grid discharge is checked for fit and clearance, and whether the test record includes measured values, not just a tick box.
Before requesting a quote, confirm with the supplier which tests are performed at the factory, what instruments and records are provided, and how deviations from the reference dimensions, volume, motor power, or ball load will be documented and resolved.