Agate Milling Jar

A natural agate milling jar for analytical and laboratory sample preparation where a silica-based working surface is appropriate.

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Overview

A natural agate milling jar for analytical and laboratory sample preparation where a silica-based working surface is appropriate. Match it with the analytical elements of interest and the intended milling conditions.

How it works

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.

Agate is silica-based and can contribute silicon or natural inclusions. It is not a universal answer when silicon contamination must be avoided.

Key features

The published chart lists nominal volume and internal/external dimensions.
Custom dimensions can be discussed against the required holder geometry.
The test records includes material-level agate jar and media records, not a certificate of jar purity.

Specifications

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.

Published dimensions and configurations — 1
Model / nominal volume	External diameter (mm)	Internal diameter (mm)	Height (mm)
50mL	65	45	57
100mL	75	50	70
150mL	90	62	80
250mL	94	73	90
300mL	102	79	95
400mL	106	80	103
500mL	106	82	108
1000mL	133	107	141
2000mL	156	130	190

Applications

Geological, environmental, ceramic and other laboratory sample preparation that can tolerate silica contribution.

Suitability depends on the actual sample, process and analytical requirements; a listed application is not a guaranteed final-particle-size result.

Accessories and options

Specify the exact jar envelope, media and closure. Handle the jar as a brittle component and inspect it before use.

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

Selection guidance

Match natural agate 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

Trials and comparisons

Material/application reference

Ore samples

XQM; exact model not recorded · Two agate-jar sample runs

Sample: 40.2 g and 102 g
Jar: 250 mL agate jar; agate media
Recorded sampling / duration: 90 min per sample

Recorded observations
Sample	Sample mass	D50 (µm)	D90 (µm)
Sample 1	40.2 g	2.82	9.03
Sample 2	102 g	3.62	11.23

Both samples were recorded in one entry, but identical composition/batch and all other conditions are not established. The difference cannot be attributed solely to sample loading. The 3 h total covers two 90 min runs.

How to plan a fair comparison

For a natural agate 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 evaluation

Product FAQs

Is agate suitable when silicon contamination must be avoided?

Not automatically. Agate is a silica-based material. Discuss the relevant analytical limits and consider another jar/media combination if silicon transfer is unacceptable.

Which natural agate jar size will fit my mill?

Listed nominal volumes: 50mL, 100mL, 150mL, 250mL, 300mL, 400mL, 500mL, 1000mL, 2000mL. Check external diameter, complete lid-inclusive height, holder/clamp geometry and loaded mass. Specify the exact jar envelope, media and closure. Handle the jar as a brittle component and inspect it before use.

Can this jar be filled to its nominal volume with sample?

No. Allow space for media and material movement, and check the permitted loaded mass. Agate is silica-based and can contribute silicon or natural inclusions. It is not a universal answer when silicon contamination must be avoided. Agree the charge for the actual natural agate jar and process.

How should I choose the matching grinding media?

Consider the sample chemistry, the jar working material, contamination limits and the required result. Agate is silica-based and can contribute silicon or natural inclusions. It is not a universal answer when silicon contamination must be avoided. Confirm the complete pairing before specifying a diameter mix or media charge.

Can a custom size, lid or vacuum version be requested?

Specify the exact jar envelope, media and closure. Handle the jar as a brittle component and inspect it before use. A proposed custom feature is subject to engineering confirmation and is not automatically included with a standard jar.

What trial evidence is available for this jar material?

Ore samples: XQM; exact model not recorded, 40.2 g and 102 g in 250 mL agate jar; agate media, 90 min per sample. Both samples were recorded in one entry, but identical composition/batch and all other conditions are not established. The difference cannot be attributed solely to sample loading. The 3 h total covers two 90 min runs. A material-family observation does not certify the supplied part or grade.

Start with your sample.

Nominal capacity, jar volume and usable sample load are different. Confirm the model, jars and electrical requirements with our engineers.

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