Factory Acceptance Checks for a Ring-Die Feed Pellet Mill
A buyer's guide to defining pass or fail checks for a ring-die feed pellet mill rated 8–12 t/h with a 110 kW main motor and 420 mm ring die, with practical questions for the FAT.
For a ring-die feed pellet mill rated 8–12 t/h, decide before the factory acceptance test which checks are pass or fail rather than merely observed. A practical starting point is whether the mill reaches the stated capacity band on the buyer's feed formulation, since throughput depends on the material and die.
Ask the supplier to state the reference conditions behind the 110 kW main motor and 420 mm ring die figures, and treat those catalog values as reference only, not as guarantees for the supplied unit. In the FAT, agree measurable checks: running at load without abnormal vibration or noise, stable die and roller alignment, and pellet appearance judged against a sample the buyer approves. Define acceptable limits in advance and record who signs off each result.
Useful questions for the request for quotation or demonstration: Which feed formulation and moisture will be used for the capacity trial? How long must the mill run at the upper end of 8–12 t/h before results count? What constitutes a failed die or roller check? Will the buyer witness the test, and what documentation accompanies it?
Before requesting a quote, confirm with the supplier the exact test material, the duration and load profile of the acceptance run, the pass or fail limits for vibration, noise, and pellet quality, and which spare parts and records are included.