2021-05-15 The EPS pre-expander forms the basis for further processing of expandable polystyrene (EPS). Specifically speaking, it is often a automatic EPS machine and is used for expanding polystyrene beads (EPS) and it guarantees the superior performance of the EPS over time and the maximum quality in the EPS processing phase. Generally speaking, a highly efficient and high-quality EPS pre-expander is a fully automatic and reliable machine.