Recorded result
- D50
- 0.6 µm
- D90
- 2.48 µm
Particle sizes for the recorded sample and sampling time.
Sample assessment
The incoming diamond powder was already micron-scale, with a much smaller median than its D90. The purpose of this short trial was to observe a one-hour milling response. Stainless steel contact and steel media were used; the record supplies particle sizes but no evidence about diamond structure, purity or end-use performance.
Recorded objective
A one-hour milling trial; no particle-size acceptance limit was stated.
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 vertical planetary family; stainless steel jar and steel balls; 70 g powder; header setting 500; run/pause cycle recorded as 5:1; interval units unspecified. The header lists 15 mm balls at 50% and 12/10 mm balls at 50%, without a percentage basis. |
|---|---|
| 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 diamond powder had D50 = 2.1 µm and D90 = 4.7 µm. A 60-minute dry planetary run gave D50 = 0.6 µm and D90 = 2.48 µm. A separate roller-mill comparison used a stainless steel roller jar, 120 g material and steel balls at setting 300 for 60 minutes; that sample gave D50 = 2 µm and D90 = 4.7 µm. The total duration field records two hours across the comparisons.
Interpretation
The planetary stage produced favorable reductions in both supplied percentiles within the requested hour. That measured change supports publication beyond the fact that the trial was completed. The roller values belong to a different machine and charge and are retained as separate context. They do not establish a controlled efficiency comparison, because charge mass, motion and speed conditions differ. No crystalline damage, contamination or application performance measurements were provided.
Practical precautions
Check contact wear and the representativeness of the small particle-analysis sample. Retain the same dispersion protocol before and after milling, and record ball mass and size fractions if the one-hour outcome is to be reproduced.
TENCAN alternatives to evaluate
TENCAN Planetary ball mill (semi-circular model): Evaluate the XQM-A benchtop family for a documented small-charge repeat of the one-hour diamond trial. Confirm jar/media compatibility and compare both D50 and D90 at equal sampling time; the present roller comparison does not establish another planetary-family advantage. This is a recommendation for a new comparison, not an observed result of this trial.
Endpoint context: Planetary sample at 60 minutes: D50 = 0.6 µm; D90 = 2.48 µm.
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, 2021. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.