EPS Batch Pre-expander JC-YF-1600 (series) Main features: 1.The machine adopts PLC and touch panel with auto filling material,auto electronic weighing,auto controlling chamber temperature,pressure and level testing to. 2.It uses an electronic weighing system and level sensor to control raw material volumes and expanded density,while ensuring density tolerances within 3%. 3.The temperture and the steam pressure in the chamber are controlled by proportion valve from Germany and advanced decompression valve from Japan.It can enable the pressure from the exit of decompression valve to be invariableness and enable the chamber temperature to be controlled to within ?%.And then it also can guarantee the consisiecy of EPS raw material to prevent the EPS raw material from agglomeration because of the bad controlof the temperature.