PLANETARY BALL MILLS
A robust metal milling jar for planetary sample grinding and mixing where iron, chromium and nickel transfer can be accepted.
A robust metal milling jar for planetary sample grinding and mixing where iron, chromium and nickel transfer can be accepted. Choose the planetary jar dimensions and wall variant for the actual holder, rather than using a roller-mill jar chart.
The jar working surface forms part of the contact system between sample, media and mill. Material selection should balance the required mechanical action with chemical compatibility and the acceptable contribution from wear.
Wear can introduce Fe, Cr and Ni. Stainless steel should not be described as contamination-free, and liquid compatibility depends on the actual chemistry.
Published catalog references are reproduced below. Nominal volume is not a sample-mass rating. Confirm the selected model, material grade, electrical supply and complete supplied configuration in the quotation.
| Model / nominal volume | External diameter (mm) / Thick-wall variant | External diameter (mm) / Thin-wall variant | Internal diameter (mm) / Thick-wall variant | Internal diameter (mm) / Thin-wall variant | Height (mm) / Thick-wall variant |
|---|---|---|---|---|---|
| 50mL | 48 | — | 38 | — | 54 |
| 100mL | 62 | — | 48 | — | 72 |
| 250mL | 87 | — | 71 | — | 83 |
| 500mL | 106 | 88 | 90 | 81 | 108 |
| 1L | 131 | 107 | 115 | 100 | 118 |
| 1.5L | 131 | 132 | 115 | 125 | 158 |
| 2L | 157 | 132 | 141 | 125 | 148 |
| 2.5L | 157 | 158 | 141 | 151 | 183 |
| 3L | 157 | 158 | 141 | 151 | 213 |
| 4L | 178 | 179 | 162 | 170 | 213 |
| 5L | 192 | — | 182 | — | 209 |
| 10L | 243 | — | 232 | — | 259 |
| 15L | 271 | — | 261 | — | 295 |
| 20L | 320 | — | 310 | — | 284 |
| 25L | 320 | — | 310 | — | 347 |
| Model / nominal volume | Height (mm) / Thin-wall variant |
|---|---|
| 50mL | — |
| 100mL | — |
| 250mL | — |
| 500mL | 110 |
| 1L | 140 |
| 1.5L | 140 |
| 2L | 181 |
| 2.5L | 156 |
| 3L | 186 |
| 4L | 188 |
| 5L | — |
| 10L | — |
| 15L | — |
| 20L | — |
| 25L | — |
General powder preparation, mixing and materials that tolerate the relevant stainless-steel constituents.
Suitability depends on the actual sample, process and analytical requirements; a listed application is not a guaranteed final-particle-size result.
Specify the exact holder, external diameter, permitted height, wall variant, closure and any vacuum requirement.
State the required grade, quantities, drawings and destination when requesting a quotation. Confirm what is included, the document requirements, packing and commercial terms; no generic delivery time or universal custom capability is assumed.
Compare milling jars · Compare grinding media · Air-cooled systems · Ultrasonic-assisted systems
Match 304 stainless steel to the sample chemistry and the elements or residues that matter to the analysis. Then confirm the dimensions, complete loaded mass and operating arrangement against the selected mill.
Work through the selection guide · Request a configuration quotation
Material/application reference
XQM-0.4A · Dry milling
| Observation | Sampling time | D50 (µm) | D90 (µm) |
|---|---|---|---|
| Recorded sample | 60 min | 20.70 | 36.48 |
Settling was reported and the requested sub-1 µm target was not demonstrated. The record does not establish that the jar or media were grade 304; it is a steel-family observation, not a grade-specific test.
For a 304 stainless steel comparison, use matched sample portions and the same measurement/dispersion method. State the jar, media, mass/volume loading basis, processing schedule and contamination measurements. A change in material grade alone is not established as the cause of a result.
These anonymous records are not operating instructions. Measurement and dispersion methods are not fully specified in the test summaries; results apply to the reported samples and conditions.
Discuss a matched sample evaluationThe holder and motion arrangement differ. Confirm the jar shape, dimensions, lid and loaded mass for the intended planetary mill; matching nominal volume alone does not establish compatibility.
Listed nominal volumes: 50mL, 100mL, 250mL, 500mL, 1L, 1.5L, 2L, 2.5L, 3L, 4L, 5L, 10L, 15L, 20L, 25L. Check external diameter, complete lid-inclusive height, holder/clamp geometry and loaded mass. Specify the exact holder, external diameter, permitted height, wall variant, closure and any vacuum requirement.
No. Allow space for media and material movement, and check the permitted loaded mass. Wear can introduce Fe, Cr and Ni. Stainless steel should not be described as contamination-free, and liquid compatibility depends on the actual chemistry. Agree the charge for the actual 304 stainless steel jar and process.
Consider the sample chemistry, the jar working material, contamination limits and the required result. Wear can introduce Fe, Cr and Ni. Stainless steel should not be described as contamination-free, and liquid compatibility depends on the actual chemistry. Confirm the complete pairing before specifying a diameter mix or media charge.
Specify the exact holder, external diameter, permitted height, wall variant, closure and any vacuum requirement. A proposed custom feature is subject to engineering confirmation and is not automatically included with a standard jar.
Battery cathode powder: XQM-0.4A, 10 g in 100 mL stainless-steel jar; steel media, 60 min. Settling was reported and the requested sub-1 µm target was not demonstrated. The record does not establish that the jar or media were grade 304; it is a steel-family observation, not a grade-specific test. A material-family observation does not certify the supplied part or grade.
Nominal capacity, jar volume and usable sample load are different. Confirm the model, jars and electrical requirements with our engineers.
Choosing Jars and Grinding MediaPlan a sample evaluation with our engineers.
Request free sample grinding