Hangzhou Epsole Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of pre expander for eps in China. We warmly welcome you to buy high quality pre expander for eps for sale here from our factory. Good service and reasonable price are available.

For manufacturers of EPS boards and packaging products, the precision of density control during the pre-expansion process directly determines the weight stability of the final product, material costs, and market competitiveness. The Epsole EPS pre-expander utilizes a fully automated PLC control system combined with high-precision sensors to maintain density tolerance within ±1%. Consuming only 25–40 kg of steam per 100 kg of EPS, it achieves energy savings of 30–50% compared to the industry average. From building insulation boards to precision packaging materials, it delivers the ideal pre-expanded beads for your subsequent molding processes.
Advantages of Pre-expander
An electronic weighing system and a photoelectric material-level control system precisely monitor the bulk density of the foaming material, ensuring uniform bead density after foaming.
Featuring a closed-loop, constant-pressure foaming vessel design and a highly efficient thermal insulation structure, the system achieves steam savings of 30–50%.
The batch-type pre-expander utilizes a sealed, thermally insulated vessel design, resulting in higher steam utilization efficiency and a substantial increase in expansion speed.
Why Choose Us
Specializing in the R&D and manufacturing of complete EPS equipment sets, with a deep understanding of the entire process workflow.
Process parameters are fully customizable to ensure a rapid response to specific client requirements.
The vessel body is constructed from stainless steel, featuring a highly polished interior surface that minimizes material adhesion.
Our products have been exported to over 30 countries, including Canada, France, Sweden, Thailand, and Indonesia.
We provide comprehensive design and installation services for complete production lines.
Prior to shipment, every piece of equipment undergoes rigorous testing, including continuous no-load operation and full-load trial runs.

|
Item |
ESPB 150 |
|
|
Expansion Chamber |
Diameter Volume Usable Volume |
Φ1500mm 3.2m³ |
|
Outside Dimensions |
L×W×H |
6500×4150×5400mm |
|
Weight |
5.00t |
|
|
Room Height Required |
5000mm |
|
Hot Tags: pre expander for eps, China, manufacturers, suppliers, factory, price, vacuum, for sale, pre expander, Automatic EPS Pre expander, beads making machine, eps machine styrofoam, Polystyrene Expanding Machine Eps Pre expander, Product Auto Transfer Line


