Sample assessment
The rock was supplied as large pieces and crushed before milling. Its mineral composition is unspecified, so the measured result is retained at that general material level. The laboratory test record documents this preparation only; applying the method to another batch requires a matched trial.
Recorded objective
Explore how finely the supplied rock could be milled; no fixed size threshold is recorded.
Equipment and selection
The recorded planetary machine is XQM. The corresponding TENCAN family is the Vertical square planetary ball mill. The jar volume identifies the test container and does not establish an exact machine variant or production capacity. Equipment association follows the recorded machine designation.
Test setup
| Recorded planetary machine | XQM |
|---|---|
| Documented setup | 500 mL alumina jar with standard zirconia balls; 297 g pre-crushed rock; dry milling; speed setting 450. |
| Recorded operating cycle | Run 5 / pause 1; units not stated in mode field |
Speed values are reproduced as recorded settings. A rotational unit and planetary-disc versus jar-speed basis are not stated, so these numbers are not labelled rpm.
Recorded procedure and results
The rock was crushed before the planetary stage. One jar sampled after 1 hour measured D50 = 9.4 µm and D90 = 40.66 µm. A second jar milled for 30 minutes measured D50 = 9.81 µm and D90 = 33.54 µm.
Interpretation
Both preparations yielded measured fine-powder distributions. They are separate jar observations, so the values must not be plotted as a single 30-to-60-minute time series. The source identifies the material only as rock and supplies no mineralogical composition.
Practical precautions
Identify the mineral phases before transferring this procedure to another rock. Retain the crushing step, document the sample split and check wear contamination if the powder is intended for elemental analysis.
TENCAN alternatives to evaluate
For follow-up comparison, consider the TENCAN Laboratory Full-Directional Planetary Ball Mill. For unspecified rock, a matched QXQM trial can test whether changing orientation affects the rock powder coarse tail after pre-crushing. Keep sample mass, media and sampling times controlled. This is a proposed comparison; the test record does not demonstrate a superior result for that alternative. Confirm jar compatibility and the permitted complete loaded mass before selecting a configuration.
Procedure records XQM; related product is the corresponding tested machine family. Exact variant is not inferred from jar size.
About this trial
TENCAN laboratory trial, 2023. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.