Recorded result
- D50
- 0.6 µm
- D90
- 3.3 µm
Particle sizes for the recorded sample and sampling time.
Sample assessment
The ferrite arrived as powder with incoming D50 3.5 µm and D90 8.4 µm. A 300 g charge was processed after a separate deionized-water wash of the steel contact system. The ball-charge notation and milling-liquid condition are incomplete, so these need clarification before the measured endpoint becomes a reproducible recipe.
Recorded objective
A recorded D50 objective of 1 µm.
Equipment and selection
The source identifies XQM family. The related TENCAN product association is Vertical square planetary ball mill. This identifies the recorded equipment family, rather than an independently verified serial-number configuration. Jar contact materials and charge details below are test observations; an unspecified steel grade or ball-percentage basis is not supplied by the association.
Test setup
| Recorded setup | XQM planetary family; stainless steel jar and steel balls; 300 g powder; header setting 420; run/pause cycle recorded as 5:1; interval units unspecified. The charge field contains an unexplained 2/4/4 notation. |
|---|---|
| Speed notation | Values are retained as recorded speed settings. The source does not identify the revolution/rotation reference; no separate jar speed is inferred. |
Recorded procedure and results
The incoming ferrite measured D50 = 3.5 µm and D90 = 8.4 µm. Before adding material, the jar and balls were washed for 60 minutes using supplied deionized water. The subsequent two-hour milling sample measured D50 = 0.6 µm and D90 = 3.3 µm. The duration field records two hours for milling, keeping the preparatory wash separate. The note does not specify the liquid charge during milling or explain the ball-charge notation.
Interpretation
The observed median is below the numerical D50 objective and is substantially lower than the incoming median. The D90 also declined, but it remained above 3 µm; the reported success therefore concerns the specified median. The washing step is a recorded preparation condition rather than proof of contamination removal. No elemental assay, magnetic-performance test or repeatability series was included, and the record does not identify a ferrite grade.
Practical precautions
Clarify whether the jar was drained after washing and document any milling liquid before reproduction. Resolve the ball-charge notation and record ball mass and sizes. Verify particle dispersion consistently, and assess steel contact against the ferrite application.
TENCAN alternatives to evaluate
TENCAN Laboratory Full-Directional Planetary Ball Mill: Evaluate the QXQM family only after clarifying the ferrite wash, liquid condition and ball charge. Keep contact materials and the D50 acceptance method consistent so a change in orientation can be judged without conflating it with a different preparation recipe. This is a recommendation for a new comparison, not an observed result of this trial.
Endpoint context: D50 = 0.6 µm; D90 = 3.3 µm after two hours of milling.
Tested equipment association only: XQM family; exact machine variant not inferred. Alternative products are evaluation candidates in the body only.
About this trial
TENCAN laboratory trial, 2022. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.