Our premium Corundum Ball Mill Jars are engineered for researchers who demand the utmost purity and minimal contamination in their sample preparation. Manufactured from high-grade alumina ceramic (Al₂O₃), these jars offer exceptional wear resistance, chemical inertness, and mechanical strength. They are the ideal solution for grinding high-purity, advanced materials where even trace metallic contamination from stainless steel jars would compromise results.

1. Ultra-Low Contamination:

   • Primary Advantage: Made from 99% (or higher) aluminum oxide, these jars ensure that your samples remain free from metallic impurities (Fe, Cr, Ni, Mo). This is critical for applications in materials science, electronics, and chemistry.

   • Chemically Inert: Highly resistant to acids, alkalis, and organic solvents, ensuring the jar material does not react with or contaminate your samples.

2. Exceptional Durability & Hardness:

   • Corundum Hardness: With a Mohs hardness of 9 (second only to diamond), alumina ceramic is extremely wear-resistant, offering a significantly longer service life than other ceramics and far outperforming stainless steel in abrasion resistance.

   • High Mechanical Strength: Designed with robust walls to withstand the high-impact forces and mechanical stresses of planetary ball milling.

3. Precision Engineering for Stable Performance:

   • Isostatic Pressing & High-Temperature Sintering: Advanced manufacturing ensures a dense, uniform microstructure with no pores, enhancing strength and preventing micro-cracking.

   • Precision-Machined Fit: Guarantees perfect concentricity and a secure fit on your planetary mill's sun wheel, ensuring smooth, vibration-free operation even at high speeds.

4. Comprehensive Size Range:

   • Available in a wide spectrum of standard volumes, from 50ml for small-batch R&D work up to 5 Liters for larger production or processing needs. Custom sizes are also available upon request.

5. Leak-Proof Secure Sealing:

   • Features a precision-engineered lid system with a compliant sealing gasket (often made of Viton or silicone) to provide a completely sealed environment. This is essential for:

     • Wet Grinding: Preventing spillage and evaporation.

     • Inert Atmosphere Grinding: Allows for the evacuation and purging of the jar with argon or nitrogen gas to prevent oxidation of sensitive samples.

• Material: High-Alumina Ceramic (Al₂O₃ ≥ 99%)
• Available Sizes: 50ml, 100ml, 250ml, 500ml, 1L, 2L, 3L, 5L (Custom sizes available)
• Sealing System: Secure bolt-type or clamp-type lid with O-ring gasket
• Color: White
• Density: > 3.8 g/cm³
• Hardness: Mohs 9
• Compressive Strength: > 2000 MPa

These jars are indispensable in fields where purity is paramount:

• Advanced Materials Science: Grinding of ceramic powders, superconductors, ferroelectrics, and nanomaterials.

• Electronics Industry: Preparation of electronic ceramics, dielectric materials, and semiconductor powders.

• Geology & Mineralogy: Fine grinding of geological samples for trace element analysis (XRF, XRD, ICP-MS) without metal contamination.

• Chemistry & Catalysis: Preparation of high-purity catalysts and chemical precursors.

• Pharmaceutical Research: Size reduction of active pharmaceutical ingredients (APIs) where metal contamination is unacceptable.

• Superior Purity: Guaranteed low contamination for the most sensitive applications.

• Unmatched Wear Resistance: Longer lifespan than other materials, providing better long-term value.

• Expert Manufacturing: Produced with state-of-the-art ceramic forming and sintering technology.

• Proven Compatibility: Designed to fit most major planetary ball mill brands.

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