Sample assessment
The silica samples have different powder-to-water ratios and jar materials. Only one preparation has both an early and a later measured endpoint. The laboratory test record documents this preparation only; applying the method to another batch requires a matched trial.
Recorded objective
Record size changes during wet milling; the request calls for hourly checks without a numerical acceptance limit.
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 | Primary setup 500 mL zirconia jar with 15–1 mm zirconia media; sample 200 g plus water 180 g; initial speed setting 480, later 500. |
| 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 primary sample measured D50 = 4.82 µm and D90 = 9.47 µm at 2 hours. After increasing the setting to 500, its 5-hour sample measured 0.67/2.98 µm. A 500 mL alumina-jar preparation with 227 g powder plus 227 g water measured 3.92/7.49 µm at 2 hours before a recorded speed increase. Another alumina preparation with 193 g powder plus 193 g water measured 3.37/7.32 µm at 2 hours before a speed increase. No later values are supplied for those preparations.
Interpretation
The primary sample became finer in both reported percentiles between the documented times. The request for hourly checks does not supply missing hourly measurements, and the other preparations cannot be treated as equivalent 5-hour results.
Practical precautions
Keep the water ratios, jar materials and sample labels separate. Resolve the difference between the broad media-size description and the separate detailed fraction field when preparing a reproducible operating method.
TENCAN alternatives to evaluate
For follow-up comparison, consider the TENCAN Laboratory Full-Directional Planetary Ball Mill. For silica, a matched QXQM trial can test whether changing orientation affects the silica coarse tail with water ratio and jar material controlled. 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, 2025. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.