This product is a high-performance, cost-effective replacement jar designed to be compatible with Retsch planetary ball mills. It combines the best-in-class grinding medium (zirconia) with a practical stainless steel shell for protection and ease of use.

Material: Made from high-purity Yttria-Stabilized Tetragonal Zirconia Polycrystals (Y-TZP). This is the same grade of advanced ceramic used in high-wear industrial and medical applications.

Properties:

• Extreme Hardness & Wear Resistance: Significantly harder than alumina, ensuring minimal jar wear and material contamination.
• Chemical Inertness: Impervious to corrosion and will not react with your samples, making it ideal for grinding acidic, basic, or sensitive materials.
• Smooth, Polished Interior: The inner surface is typically mirror-polished to prevent particle adhesion, facilitate easy cleaning, and minimize cross-contamination between batches.

Function: The zirconia inner jar is snugly housed within a durable stainless steel (typically 304 or 316 grade) sleeve or cover.

Benefits:

• Impact Protection: Shields the brittle zirconia ceramic from accidental impacts, chips, or cracks during handling, loading, and unloading.
• Structural Integrity: Provides a robust external structure that can better withstand the clamping forces and high-speed rotational stresses of the planetary mill.
• Secure Sealing: The lid and sealing mechanism are often integrated with the steel cover, ensuring a leak-proof closure that is both strong and reliable.

• Direct Compatibility: This jar is engineered to the precise dimensions of the original Retsch 50ml jars, ensuring a perfect fit in the mill's jar mounting system without any need for adapters.
• Significant Cost Savings: Offers the performance profile of a premium ceramic jar at a fraction of the cost of a genuine OEM (Retsch) replacement part.
• Superior Performance vs. Other Alternatives: While being cost-effective, it provides a much better grinding solution than jars made of materials like Nylon or Polycarbonate, which wear quickly and can introduce organic contamination.

This jar is perfect for laboratories that require high-quality grinding but are mindful of budget. It is particularly suited for:

• Academic Research: Where grant money must be stretched across many consumables.
• Quality Control Labs: That perform routine sample preparation and need reliable, durable jars.
• Material Science R&D: Especially for grinding hard, abrasive, or chemically sensitive materials like:
  • Battery materials (cathode/anode powders)
  • Catalysts
  • Ceramic powders
  • Pharmaceuticals (APIs)
  • Geology samples

• Performance: Zirconia interior provides contamination-free, high-efficiency grinding.
• Durability: Stainless steel shell protects your investment from accidental damage.
• Economy: Excellent price-to-performance ratio as a replacement for OEM jars.
• Compatibility: Designed specifically for a seamless fit in Retsch planetary ball mills.
• Practicality: Combines the benefits of a ceramic grinding surface with the ruggedness of a metal housing.

This product is an intelligent choice for any lab using Retsch mills, looking to maintain high standards of grinding purity and efficiency while effectively managing operational costs.