Compact Expanded Polystyrene Pre Expander Processing For Foam Box And Block
Product Description
The EPS (Expanded Polystyrene) pre-expander machine is a device used in the manufacturing process of expanded polystyrene foam products. It plays a crucial role in the initial stage of expanding the polystyrene beads before they are molded into various shapes and forms.
Here is a detailed description of an EPS pre-expander machine:
Hopper: The machine has a hopper where the raw polystyrene beads are loaded. The hopper feeds the beads into the pre-expanding chamber.
Pre-expanding chamber: The pre-expanding chamber is the main part of the machine where the actual expansion process takes place. The chamber is typically cylindrical and equipped with steam injection outlets. The polystyrene beads are introduced into the chamber, and steam is injected to heat and expand the beads.
Steam injection system: The pre-expander machine is equipped with a steam injection system that supplies steam into the pre-expanding chamber. The steam softens the polystyrene beads, causing them to expand.