EPS pre expander machine
Main Features
1.Feeding, expander, filtrating, transport to silos automatically
2.Steam system: The Styrofoam batch expander machine has steam pressure reducer and angle valve to control steam. The steam system allows Styrofoam batch expander machine to operate properly and produce high quality foaming beads.
3.Filling system: The EPS pre-expander machine adopts electronic weighing system,material level sensor control, so as to control capacity of foaming materials, to ensure that the foam bead evenly
4.Electric control: Adopt PLC and touch screen, achieve precise automatic operation
5.Feed barrels made of stainless steel. Electrical components, valves are used abroad well-known brands, to maintain the durable, stable performance

Technical Data
Item | Type | ||||
PSJ90 | PSJ110 | PSJ150 | PSJ160 | ||
Expansion Chamber | Diameter | Φ900mm | Φ1100mm | Φ1500mm | Φ1600mm |
Volume | 0.85m3 | 1.4m3 | 4.5m3 | 5.4m3 | |
Useable Volume | 0.6m3 | 0.9m3 | 3.2m3 | 4.5m3 | |
Steam | Entry | DN40 | DN50 | DN40 | DN100 |
Consumption | 2-4kg/cycle | 6-9kg/cycle | 15-18kg/cycle | 18-20kg/cycle | |
Pressure | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | |
Compressed Air | Entry | DN25 | DN25 | DN50 | DN40 |
Consumption | 0.3m3-0.4m3/cycle | 0.5m3-0.6m3/cycle | 0.5-0.6m3/cycle | 0.5m3-0.8m3/cycle | |
Pressure | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | |
Drainage | Drainage Port | DN100 | DN80 | DN100 | DN150 |
Condensate | DN40 | DN80 | DN40 | DN50 | |
Throughput | 13g/l 240kg/h | 12g/l 240kg/h | 12g/l 600kg/h | 12g/l 1500kg/h | |
18g/l 350kg/h | 15g/l 320kg/h | 15g/l 900kg/h | 15g/l 2000kg/h | ||
25g/l 480kg/h | 20g/l 430kg/h | 20g/l 1200kg/h | 20g/l 26000kg/h | ||
31g/l 590kg/h | 30g/l 600kg/h | 30g/l 1500kg/h | 30g/l 3100kg/h | ||
50g/l 720kg/h | |||||
Material Conveying Line | Φ150mm | Φ150mm | Φ150mm | Φ250mm | |
Power | 16.75Kw | 16.13Kw | 24.85Kw | 38.45Kw | |
Density | 12-90g/l | 12-30g/l | 12-30g/l | 12-30g/l | |
Density Tolerance | ≤±2% | ≤±3% | ≤±5% | ≤±3% | |
Overall Dimension | L*W*H | 4500*2000*4900 | 5600*3800*4530 | 8500*4150*5400 | 11000*2840*6050 |
Weight | 2500kg | 3500kg | 5000kg | 8000kg | |
Room Height Required | 5000mm | 5000mm | 6000mm | 7000mm | |
Auto density-weighing system | optional | optional | optional | ||
Second expansion | include | optional |
Pre-foaming process
The EPS raw material is conveyed as granules to the pre-expander, where it is heated by means of wet steam. The hot steam softens the polystyrene beads and activates the blowing agent dissolved in them. This evaporates and causes the softened beads to expand.The bulk density can be adjusted by the weight of the raw material and the foamed volume.
The EPS beads pre-expanded are then cooled and stabilized in a fluidized bed on an air cushion before being conveyed by blower via a rotary feeder into the silos.

Products
eps raw material
eps expansion
Eps Foam Beads



