A pneumatic press with a cooling jacket enables:
- drum cooling before filling,
- grape pomace cooling before and during pressing,
- temperature regulation of the grape mass inside the drum according to enological recommendations,
- controlled maceration process: pomace maceration at low temperatures can enable a more intense aromatic precursor extraction.
Cooling jacket technical features
- operating pressure: 3 bar
- test pressure: 6 bar
- cooling medium: water, glycol
- inlet/outlet connectors: ¾’’, quick couplings
Cooling surface:
| Pneumatic press | Drum volume (l) | Cooling jacket (m2) |
| PST 5 | 500 | 1.40 |
| PST 8 | 800 | 2.25 |
| PST 10 | 1000 | 2.30 |
| PST 12 | 1200 | 2.75 |
| PST 16 | 1600 | 3.50 |
| PST 21 | 2100 | 3.95 |
| PST 29 | 2900 | 7.60 |
| PST 42 | 4200 | 9.60 |
| PST 55 | 5500 | 11.25 |
| PST 80 | 8000 | 15.70 |
| PST 100 | 10,000 | 16.65 |
| PST 130 | 13,000 | 18.85 |
| PST 150 | 15,000 | 23.20 |
Cooling medium supply
The rotational entry design enables the cooling jacket to stay connected to the cooling medium source even during drum rotation.
