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High-alumina ceramic ball milling jars used in planetary ball mills or jar mills

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High-alumina ceramic ball milling jars used in planetary ball mills or jar mills

Brand Name : Zoli

Model Number : BMJ-01

Certification : ISO

Place of Origin : China

MOQ : 1pc

Payment Terms : L/C,T/T,Western Union

Supply Ability : 10000 per month

Delivery Time : within 15 days

Packaging Details : carton+Pearl wool+wood

Attachment : lid and rubber sealing gasket

Grinding Ball Size : 10 mm

Jar Material : Stainless steel

Compatibility : ball mill machine

Jar Type : Vertical

Jar Weight : 1.5kg

Extreme Environment : 1500°C Capable

Maximum Speed : 500 rpm

Pot Type : Vertical

Hardness : Mohs Hardness ≥ 9 (HRA ≥ 88)

Total Volume : 1L

Alumina Content : ≥ 99%

Power Source : Electric

Supply : Stock Available

Max Feed Size : 10mm

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Detailed Description: High-Alumina Ceramic Ball Milling Jars

High-alumina ceramic ball milling jars used in planetary ball mills or jar mills High-alumina ceramic ball milling jars used in planetary ball mills or jar mills

Specification Parameters
Volume of Jar Inner Diameter
(mm)		 External Diameter
(mm)		 Inner Depth
(mm)		 Height of without lid
(mm)		 Total Height
(mm)
50ml 38 55 52 60 67
100ml 50 65 58 66 75
250ml 74 92 70 78 88
500ml 84 100 100 108 118
1L 108 128 128 138 148
2L 138 158 140 150 162
3L 138 158 198 208 220

High-alumina ceramic ball milling jars are robust, high-performance containers manufactured from a sintered ceramic material containing a very high percentage (typically >90%, often 99%) of aluminum oxide (Al₂O₃). They are versatile workhorses used across various milling applications in both planetary ball mills and traditional jar mills.

Key Material Properties and Advantages
  • High Hardness and Wear Resistance: With a Mohs hardness of 9, alumina is significantly harder than agate (Mohs 7). This makes it extremely wear-resistant, leading to a long service life even under high-energy milling conditions.
  • High Compressive Strength: Alumina ceramics can withstand very high impact forces without cracking, making them more durable and less brittle than agate jars. This is a major advantage for milling very hard materials or for large-scale production.
  • Good Chemical Resistance:
    • Superior Alkali Resistance: This is a primary advantage over agate. High-alumina ceramic is highly resistant to strong alkalis (hot or cold NaOH, KOH), making it the preferred choice for grinding alkaline samples.
    • Excellent Acid Resistance: It is resistant to most acids and organic solvents. However, it is attacked by hydrofluoric acid (HF), phosphoric acid (H₃PO₄) at high temperatures, and strong hot sulfuric acid.
  • Cost-Effectiveness: Generally, high-alumina jars are more cost-effective than agate jars of the same volume, offering a great balance of performance and price.
Comparison with Agate Jars: When to Choose Which?
Feature High-Alumina Ceramic Jar Natural Agate Jar
Hardness Higher (Mohs 9) High (Mohs 7)
Toughness Higher (More impact-resistant) More brittle (can crack from impact)
Cost Generally more cost-effective More expensive
Acid Resistance Excellent (except HF, hot H₃PO₄, hot H₂SO₄) Excellent (except HF)
Alkali Resistance Excellent Good for weak alkalis; poor for strong, hot alkalis
Contamination Risk Very low, but can introduce Al into sample The lowest (virtually contamination-free)
Primary Use General purpose, hard materials, alkaline samples High-purity analysis, trace element work, acidic samples
Customization Capabilities
  • Volume and Dimensions: Custom sizes beyond standard offerings.
  • Lid Design: Lids can be fitted with gaskets for better sealing, and custom designs for vacuum or inert gas atmospheres are possible.
  • Grinding Media: Must be matched with high-alumina ceramic grinding balls to prevent jar wear.

Product Tags:

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