PRE-EXPANDERS

Pre-expanders are automatic machines for expanding polystyrene beads (EPS).

CONTINUOUS PRE-EXPANDERS

These machines expand polystyrene by means of continuous cycle operations and they allow to achieve bead densities between 40g/l and 15g/l in the first expansion.

These machines can be integrated with second expansion unit in order to achieve lower densities up to 10g/l.