PS foam sheet machine 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 vessals such as fast food box,aquatic plate, supermarket tray, cake tray, KT board , industrial products and so on. This equipment adopts high speed non-stop hydraulic filter changer and PLC controller.