After weighing the EPS beads in batches, they enter the pre foaming machine for pre foaming.
-High precision of pre foaming
-Wide range of foaming density
-EPS raw materials with low pentane content can be prepared
-Generally, EPS raw materials contain 6-7% pentane
-EPS raw materials with low pentane content contain 3-4.5% pentane (pre released in a pressurized pre foaming machine)
– by adjusting the quantity of raw materials to be put in each time
– by adjusting the heating time of steam
– by adjusting the height of EPS beads in the foaming machine (at which point the steam is cut off)
– by adjusting the steam pressure
– by regulating the supply of steam (steam to air ratio)
-Control steam pressure (0.1 to 0.6 bar) – low density
-Control steam temperature (85 to 99 ° C) – high density
-Air mixing – high density
There is temperature controlling device in the pre-expanding vessel,it can control the temperature change into smallest level so that it can save the heat energy.
Steam-Water discharge device can avoid the solidification of the water and the lumping of the foam, thus it can reduce the water entrainment rate of the material.
Our factory is located in the Xindeng, Hangzhou.
Styrofoam Machine’s Anti-rust Processing
We focused on top quality shape molding machine and other foam equipment for over 20 years in China.
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