Pre-expander PND-1202
High-capacity continuous pre-expander with 2500 liter volume. Designed for primary and secondary foaming of polystyrene granules in polystyrene concrete production lines. Ensures stable density of expanded granules and high material uniformity.
- ✔Double foaming
- ✔Electronic speed control of raw material feed with visual indication
- ✔Temperature sensor with visual indication
- ✔Stainless steel tank
- ✔Pneumatic pump control (1st and 2nd foaming)
- ✔Bottom heating
- ✔Distributed steam supply
- ✔Door inspection window
- ✔Polymer-powder coating
- ✔Granule sintering protection
- ✔Counter knives
| Capacity | 25-30 m³/h |
| Foaming chamber volume | 2500 liters |
| Installed power | 7 kW |
| Supply voltage | 380 V, 50 Hz |
| Dimensions (L×W×H) | 1700 × 2400 × 3200 mm |
| Body material | Stainless steel AISI 304 |