Machine Instruction:
BatchTypePre-Expander with Secondary Expansion is a specialized equipment used in the foam industry to expand and shape polystyrene beads before they are molded into useful products. This pre-expander works on a batch processing system where beads are loaded into the machine and processed in a closed chamber.
The pre-expander operates in two stages- primary and secondary expansion. In the primary stage, the beads are subjected to heat and steam in the closed chamber, causing the beads to expand and increase in size. This primary expansion helps to break the cell structure of the beads, making them more open and receptive to further expansion in the secondary stage.
In the secondary expansion stage, the expanded beads from the primary stage are loaded into a separate chamber equipped with a heating and steam injection system. The beads undergo further heating and pressure to complete the secondary expansion, which locks in the cell structure and produces a more uniform and stable foam.
The BatchTypePre-Expander with Secondary Expansion can process a wide range of bead sizes and densities, making it suitable for producing foam products of different thicknesses and densities. The machine is programmable and can be set to specific processing parameters based on the product requirements.
Overall, this equipment is an essential tool in the foam industry, allowing manufacturers to produce high-quality foam products that meet customer needs and specifications. The BatchTypePre-Expander with Secondary Expansion helps to reduce material waste, increase productivity, and improve production efficiency.
Main Features:
1, All process including filling, expanding, sieving, delumping and conveying to silos are done automatically.
2, With primary and secondary expansion device to get density of 5-30g/l
3, Fist filling is controlled by frequency converter
4, With power-off protection device
5, With Japan steam presure reducing valve
| TECHNICAL DATA |
|
|
| Item |
|
1500 |
| Expansion Chamber |
Diameter
Useable volume |
Φ 1500mm
3.0m³ |
| Steam |
Entry
Consumption
Pressure |
DN65
15-17kg/cycle
0.6-0.8MPa |
| Compressed Air |
Entry
Pressure |
DN40
0.6-0.8MPa |
| Drainage |
Condensate |
DN150 |
| Throughout |
5g/l
15g/l
20g/l
25g/l |
500g/l
1400g/l
1550g/l
150g/l |
| Material Conveying Line |
|
Φ 150mm |
| Connected Load |
|
8.93Kw |
| Density |
First expansion
Second expansion |
10-25g/l
5-9g/l |
| Overall Dimension |
(L*W*H) |
8800*2200*4600(mm) |
| Weight |
|
4500kg |
Audited Supplier 
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