Products >> Pre - Expander Series
Continuos Pre-Expander Continuos Pre-Expander
  • Inside and outside of barrel are both made of stainless steel, and the middle layer is made of heat preserving material.
  • The production efficiency is 2~3 times higher than the average machine; it can reduce 25% energy consumption.
  • This machine can process secondary pre-expansion.
  • The expanded density range of foamed beads is 7~35 KG/M³, the density tolerance is minimal.
  • Steam pressure reducing value is optional.
  • Fluidised bed dryer is optional.
Auto Batch Pre-Expander Auto Batch Pre-Expander
  • This machine applies PLC and touch screen, automatic feeding, electronic weighing, temperature control, material level control to realize automatic production.
  • Electronic weighing system and material level control system assure the density of the foamed material, which make the size of bead uniform and keep the density tolerance within ±1.5.
  • High precise guiding pressure reducing value controls the temperature and steam pressure of the closed barrel, ensure the outcome pressure of the value constant and inner temperature controlled within =1%C, which keeps the foamed material equal and prevents the bead agglomerate because of the bad temperature control.
  • Automatic material charging system improves efficiency and reduces labour intensity.
  • The closed type constant pressure foaming barrel has high heating efficiency. It can save more than 50% energy compared to the continuous pre-expander.
  • The machine is attached with fluidized drying bed, which dry, crush and filter the foamed materials automatically, then transport to the aging silos.
  • Most of the main components are of world-famous brands, with reliable performance, stable quality, long service life and low maintenance cost.
Auto Batch Multifunctional Pre-Expander Auto Batch Multifunctional Pre-Expander
  • This machine is used for secondary pre-expanded machine, it can expand particular low density foamed beads, and it also can be used for first pre-expansion after technical reform. It is a multifunction pre-expander machine.
  • This machine applies PLC and touch screen, automatic feeding, electronic weighing
  • Temperature control, material level control to realize automatic production.
  • Electronic weighing system and material level control system assure the density of the foamed material, which make the bead uniform and keep the density tolerance within=2. 8%.
  • This machine applies automatic material charging system, electronic weighing system and PLC central control system which realize automatic feeding and weighing, improve production efficiency and reduce labor intensity.
  • The closed constant pressure foaming barrel has high heating efficiency. It can save more than 50% energy compared with the continuous pre-expander. The foamed beads are uniform, and its aging time is shorter compared with other normal machine.
  • This machine applies large volume fluidized bed dryer. It can automatically dry, filter crush the ball material and transport the foamed material to aging silos.
  • This machine applies automatic high pressure suction material charging system and automatic high pressure fan facility discharging system, which shorten the materials charging and discharging time, improve the production efficiency.
  • Most of the main components are of world-famous brands, with reliable performance, stable quality, long service life and low maintenance cost.
  • The computer has memory function, which can record all information such as brands, specifications, expanding foam techniques and parameters of EPS material manufacturers. When customer want to use the materials that ever been used before just press the touch the screen of computer to quickly go back to the original technique.
  • The electronic weighing system device is assembled on the top of the machine frame, the structure of the machine is compact, and it occupies smaller space.
  • This machine is applicable in plateau oxygen depletion area; the production efficiency of continuous pre-expander machine is quite low under such circumstances.