pre-expansion machine and eps block machine advantage 1.The pre-expansion machine is fully automatic control, parameters can be set through PLC, automatic feeding and automatic measurement, and a temperature controller to control the temperature in the cylinder, so that the raw material foams more uniformly and the effect is better. The cylinder material is stainless steel. 2. The eps block machine is fully automatic control, all aluminum plates are used in the eps block machine cavity, which has better heat conduction effect. The thickness of the eps block machine material steel plate is thicker, and the product forming effect is better. The pipes and valves are large in size, which is more conducive to cooling.