expanding machine : Throughput: 15g/l 00-250kg/h, 20g/l 120-300kg/ ... expansion Density: 12-30g/l 25 years in EPS expading machine manufacturing industry, Continuous pre-expander SPY70 90 120 Throughput: 15g/l 00-250kg ... /l ,Second expansion density:8-13g/l 1. Including filling.expander,sleving,de-lumping and conveyer complete, all process work automatically ...