The FRITSCH PULVERISETTE™ 5 Grinding Bowls are precision-engineered accessories designed to deliver optimal grinding performance, reproducibility, and contamination control in planetary ball milling applications. Available in multiple volumes and materials, these grinding bowls allow precise matching of sample size, material properties, and grinding requirements.

For operation of the PULVERISETTE™ 5 premium line, a minimum of two grinding bowls and the corresponding number of grinding balls are required. For best results, the bowl and ball material should be harder than the sample, and typically of the same material to prevent contamination.

All premium line grinding bowls feature a stainless steel casing, consistent inner diameter, and clear identification labeling, ensuring durability and ease of handling.

Key Selection Considerations

• Select at least 2 grinding bowls per operation
• Choose material hardness > sample hardness
• Match bowl and ball material to avoid contamination
• Use higher density materials (e.g., tungsten carbide) for faster grinding
• Consider useful capacity (not total volume) for optimal performance

Grinding Bowl Variants

420 – 500 ml Volume Range

250 ml Volume Range

125 – 150 ml Volume Range

Applications

• High-energy grinding and nano-scale particle size reduction
• Mechanical alloying and material activation
• Sample homogenisation and mixing
• Preparation of hard, brittle, soft, and moist materials
• Contamination-sensitive applications (material-specific bowls)

Grinding Bowl Selection Guide

Selecting the appropriate grinding bowl is essential for achieving optimal grinding efficiency, contamination control, and reproducible analytical results. This guide supports users in choosing the right material and volume based on application requirements and sample characteristics.

1. Material Selection Guide (Critical Decision Factor)

2. Material Selection by Sample Type

3. Volume Selection Guide

Important: Useful capacity is typically 30–50% of total bowl volume

4. Performance Optimization Guidelines

For Faster Grinding

• Use higher density materials (e.g., Tungsten Carbide, Stainless Steel)
• Optimize rotational speed and milling parameters
• Use appropriate grinding ball size distribution

For High-Purity Results

• Use Agate, Zirconia, or Silicon Nitride
• Match grinding bowl and ball material
• Maintain clean operating conditions

For Hard Materials

• Use Tungsten Carbide or Stainless Steel
• Apply appropriate grinding ball combinations for efficient comminution

5. Matching Grinding Balls (Essential Rule)

• Use grinding balls of the same material as the bowl
• Apply a combination of ball sizes for optimal impact and friction
• Ensure appropriate filling ratio for efficient grinding

6. Key Selection Rules (Quick Reference)

• Select a bowl material harder than the sample
• Use at least 2 grinding bowls per operation
• Base selection on useful capacity, not total volume
• Higher density materials provide enhanced grinding efficiency
• Choose material based on purity and application requirements

7. Typical Use Cases

The correct selection of grinding bowls for the FRITSCH PULVERISETTE™ 5 ensures maximum efficiency, precision, and reproducibility in laboratory milling processes. By aligning material properties and volume selection with application needs, users can achieve optimized grinding performance and consistent analytical outcomes.

For most laboratory applications, Zirconium Oxide provides a balanced and versatile solution, while Tungsten Carbide delivers maximum grinding performance, and Agate remains ideal for high-purity and contamination-sensitive workflows.