1mm Grinding Ball, Hardened Stainless Steel (100 pieces)

1mm Hardened Stainless Steel Grinding Balls (100-pack)

Product Overview

These 1mm grinding balls, crafted from hardened stainless steel (SS 440C), are designed for use with Fritsch Planetary Mills. They are essential components for pulverizing and homogenizing samples within a grinding bowl. The size, material, and quantity of grinding balls are crucial factors that determine the final particle size of your sample.

Achieving Your Desired Particle Size

The effectiveness of the milling process is directly influenced by your choice of grinding balls:

• Final Particle Size: The size of the grinding balls dictates the final fineness of the sample. As a general rule, smaller balls (like these 1mm ones) produce a finer final product, while larger balls result in a coarser grind.
• Grinding Time: Using a larger quantity of balls can significantly reduce grinding time and yield a narrower particle size distribution.
• Mixing: For optimal and consistent results, it is strongly recommended to use balls of a single, uniform size within the grinding bowl for any given process. Mixing different ball sizes can lead to inefficient grinding and inconsistent particle sizes.

Loading and Material Selection

• Optimal Bowl Volume: To ensure effective grinding action, the total volume of the grinding balls and the sample material should not exceed two-thirds of the grinding bowl's capacity. Leaving at least one-third of the bowl volume empty allows for sufficient movement and impact energy.
• Material Hardness: For efficient grinding and to minimize contamination, the grinding media (balls and bowl) should be harder than the sample being processed. For particularly abrasive or hard samples, consider using ultra-hard materials like tungsten carbide or zirconium oxide balls, which can be paired with compatible bowls (e.g., steel or corundum). Be aware that using dissimilar materials for balls and bowls may introduce a risk of cross-contamination from abrasion.
• Applications: Hardened stainless steel is an excellent general-purpose material suitable for a wide range of applications, offering good hardness and wear resistance.

Product Details

• Quantity: Balls with a diameter of 3mm or smaller are sold in packs of 100. Larger diameter balls are sold individually.
• Compatibility: These grinding balls are compatible with 80ml, 250ml, and 500ml Fritsch grinding bowls.
• Required Accessories: Classic Grinding Bowls or Premium Grinding Bowls must be purchased separately.