How to Choose Between a 15L and 30L Vacuum Planetary Mixer
When you've decided that a vacuum double planetary mixer is the right choice for your operation, the next question is capacity. The 15L and 30L models are two of the most popular options for small-to-medium production. Here's how to choose.
Capacity Comparison
| Parameter | 15L Model | 30L Model |
|---|---|---|
| Working volume | 15L | 30L |
| Design volume | 24L | 43L |
| Container diameter | 350mm | 400mm |
| Mixer power | 2.2kW | 3kW |
| Disperser power | 2.2kW | 3kW |
| Typical batch weight | 10-15kg | 20-30kg |
Batch Size Considerations
The 15L model works well for:
Small production runs (100-500 tubes/batches)
Product development and scale-up
Start-ups with limited material budgets
Facilities with space constraints
The 30L model is better for:
Larger production runs (500-1000+ units)
Operations that have passed initial scale-up
Businesses with higher material throughput
Facilities with adequate space
Material Cost Factors
Material cost is a critical factor in capacity selection:
| Material Cost | Recommended Capacity |
|---|---|
| High cost (>$50/kg) | 15L (less waste if batches need adjustment) |
| Medium cost ($20-50/kg) | Either |
| Low cost (<$20/kg) | 30L+ |
Production Volume Comparison
| Production Need | 15L | 30L |
|---|---|---|
| Small batches | 10-15kg | — |
| Medium batches | — | 20-30kg |
| Batches per day | 3-5 (with setup) | 3-5 (with setup) |
| Daily output | 30-75kg | 60-150kg |
Space and Facility Considerations
| Factor | 15L | 30L |
|---|---|---|
| Footprint (L×W×H) | 1500×800×1900mm | 1620×900×1910mm |
| Weight | ~500kg | ~800kg |
| Lifting type | Electric | Electric |
| Floor loading | Standard | Standard |
Recommendations
Choose the 15L if:
Your batch size is 10-15kg
You're still in development or scale-up
Material costs are high and you want to minimize waste
Floor space is limited
Choose the 30L if:
Your batch size is 20-30kg
You have established product formulations
You need higher daily output
You have adequate space
The 15L and 30L mixers share the same design philosophy and quality, so your choice is primarily driven by batch size and production volume. Both deliver the same mixing precision under vacuum.
