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English 
During pre-expansion, the EPS resins are fed to a vessel containing an agitator and controlled steam and air supplies, this vessel is called EPS Pre-expander, or EPS Batch Pre-expander Machine. The diameter of the particles increases while the density of the resin decreases. After exiting from the EPS pre-expander, the expanded beads will flow through a dryer to remove moisture, and then go to aging silo.
1.Resin Hopper Capacity for different capacities
2.Fluid Bed Dryer with heater
3.Transfer blower for bead
4.Resin filling blower
5.Pefect sealing and chamber pressure stabilizing ,highly efficient heat transition, energy saving up to 50% comparing to continual type EPS pre-expander.
6.10 “ MCGS touch screen
7.LG PLC control system
8.Resin weighing system
9.Automatic sensor for material level control, fully automatic density monitoring and control device, make the products with even density.
10.Level controller
11. Steam chamber :
Two options:
①Inner is stainless steel, outer is color steel
② Both inner and outer are 304 stainless steel
12. Aluminium plug type steam distributor
13. User friendly control panel
14. Second Pre-expanding device (optional)
