Pre-expansion: The process begins with the pre-expansion of EPS beads. The beads are fed into a pre-expander, where they are exposed to steam and heat.
Aging: The expanded beads are then transferred to an aging silo, where they are allowed to cool and stabilize for a certain period.
Molding: The aged beads are then fed into the shape moulding machine. The machine consists of a mold cavity in the desired shape and size of the finished product. The beads are evenly distributed within the mold cavity.
Steam and pressure application: Once the mold is filled with the expanded beads, steam is injected into the mold cavity.
Cooling and demolding: After the desired molding time, the steam supply is stopped, and the mold is cooled using either water or air.