Why Stainless Steel Construction Matters in Vacuum Planetary Mixers
When evaluating a vacuum planetary mixer, one of the most important specifications is the material of construction. The 15L model features SUS304 / SUS316 stainless steel for all contact parts. Here's why that matters.
What "SUS304" and "SUS316" Mean
These are Japanese Industrial Standards (JIS) for stainless steel:
| Grade | Composition | Key Features |
|---|---|---|
| SUS304 | 18% chromium, 8% nickel | Standard stainless, excellent corrosion resistance, good formability |
| SUS316 | 16% chromium, 10% nickel, 2% molybdenum | Superior corrosion resistance, especially against chlorides and acids |
Benefits of Stainless Steel in Mixers
| Benefit | Why It Matters |
|---|---|
| Corrosion resistance | Protects against acidic or reactive materials |
| Sanitary design | Easy to clean, meets food/pharma standards |
| No contamination | Doesn't react with materials or leach particles |
| Durability | Long service life with minimal maintenance |
| Appearance | Professional, clean appearance |
Applications Requiring Stainless Steel
Material Comparison
| Material | Corrosion Resistance | Cost | Durability | Cleanability |
|---|---|---|---|---|
| SUS304 | Good | Moderate | Excellent | Excellent |
| SUS316 | Superior | Higher | Excellent | Excellent |
| Carbon steel | Poor | Low | Moderate | Poor |
| Stainless steel (other) | Variable | Variable | Good | Good |
When to Choose SUS316
SUS316 offers superior corrosion resistance against:
Chlorides (salt water, some chemicals)
Acids (sulfuric, phosphoric)
Pharmaceutical compounds
Reactive chemicals
For most applications, SUS304 is sufficient. SUS316 is recommended when processing materials that contain chlorides or acids, or when processing under FDA-regulated conditions.
The 15L Mixer's Construction
The 15L model features:
Frame: Painted steel for structural integrity
This combination of materials provides both durability and product purity, making the mixer suitable for a wide range of applications.
