Decide what the trial must demonstrate

A screening equipment trial is easier to interpret when the required result is agreed before material is fed. This article focuses on acceptance criteria, rather than comparing machine types. The aim is to connect a test result with the actual production requirement.

Define each outlet requirement

State the intended cut sizes and how each fraction will be used. Identify the allowable oversize or undersize content where the process has a defined limit. Give the unit, test method and specification reference. Avoid a vague request for high precision without explaining how separation will be judged.

Agree on the test conditions

Record the material sample, moisture condition, feed method and planned feed rate. Note the installed mesh opening and machine configuration. Use material representative of the process, and discuss any differences between the trial setup and the intended installation before interpreting the result.

Set the sampling and measurement method

Agree on when and how samples will be taken from each stream, how they will be labelled and how particle size will be measured. Record test duration and collected quantities. If a mass balance is required, define the calculation and treatment of retained material in advance.

Write a decision that matches the evidence

Review each acceptance criterion against the recorded result. Identify unmet conditions and any further testing needed. A successful screening equipment trial supports a decision for the tested material and configuration; it does not guarantee every production condition. Share the criteria and trial record with Tianteng to support the next equipment discussion.