Alumina Ball Mill Jars with Lid Wear-Resistant High-Purity for Planetary Milling

These Alumina Ball Mill Jars with Lid are made from high-purity alumina (Al₂O₃ > 99%) using a slip-casting process, resulting in high density, smooth interior and exterior surfaces, and excellent wear resistance. Designed for long-term use in high-temperature applications up to 1600°C, they are ideal for planetary mill grinding, powder processing, and high-precision material preparation.

Package: 1 piece per pack

Available Sizes

• 0.5 L

• 1 L

• 1.5 L

• 6 L

• 12 L

Applications

• Planetary ball milling of powders and materials

• High-temperature processing for metals, ceramics, and composites

• Laboratory and industrial sample preparation requiring high wear resistance

Usage Precautions for 99% Alumina Jars

1. Pre-drying: Before first use, heat the jar in an oven at approximately 105°C for 2 hours to remove moisture.

2. Avoid Direct Flame: Do not heat with gasoline, acetylene, or alcohol torches to prevent cracking due to uneven heating.

3. Maintain Distance from Heating Elements: Keep at least 2 cm between the jar and heating elements (e.g., carbon tubes, SiC rods, heating wires).

4. Controlled Heating/Cooling:

   • Below 1200°C: ≤ 5°C per minute

   • Above 1200°C: ≤ 4°C per minute

   • Use controlled power cooling; avoid sudden shutdown at high temperatures to prevent thermal shock.

5. For Large Jars: Avoid direct contact with the furnace or heating surfaces. Elevate using high-temperature-resistant supports (e.g., corundum plates) to improve airflow and extend lifespan.