PS foam sheet Extrusion Line adopts Gentian type double-stage series high foam technology. The raw material is general polystyrene granule. In the extruding process, vesicant is injected at high pressure. After extruding, foaming cooling, shaping and hauling off, it is winding to finished ps foam sheet rolls. After vacuum forming system, the finished PS foaming sheet can be made into variety of packaging vessels such as fast food box, aquatic plate, supermarket tray, cake tray, KT board, instant noodle bowl, foam tray etc. It is widely used in the packing of food, fruit advertising, industrial products and so on. This PS foam sheet extrusion line food box machine equipment adopts high speed non-stop hydraulic filter changer and PLC controller, advantages as advanced structure, stable performance, easy operation and high quality.