Steam Full Automatic Pre-expander Machine

The Batch EPS pre-expander Machine with one button start and easy operation. According to process requirements, mixing time and steam heating time can be set in time. Closed constant pressure foaming in barrel, high thermal efficiency and steam saving, which saves energy by 50% compared to the continuous Pre-expander Machine. Stable density and the uniform particle. Pre expander can be applied to copolymerization of EPS, EPMMA and STMMA simultaneously.

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Product Description

Steam Full Automatic Pre-expander for EPS Foam Molding | Lost Foam Casting (LFC) Equipment

Discover the steam automatic pre-foaming machine manufacturer China at Ruiou – your trusted EPS pre expander for lost foam casting partner. This batch EPS pre-foamer delivers one-button automatic operation, 50% energy savings, and uniform EPS beads for perfect lost foam patterns. As a leading lost foam white area pre-foamer supplier, we provide energy saving EPS pre-expansion machine with PLC control, ideal for automotive and precision casting plants. Request free technical consultation and get custom lost foam pre-foaming equipment China pricing today.

Product Structure

1. The host unit

2. Famous Chinese brand control system in China (optional Siemens screen)

3. Discharge system

4. Automatic weighing system

Main Function

1. Equipped with hot air drying system. Raw material without agglomeration, dry and uniform, shortening time ripening time.

2. The machine adopts PLC programmable controller and touch screen control,automatic material feeding system，automatic electronic weighing， automatic control of barrel’s temperature and air pressure and automatic sensing of material level to guarantee machine’s automatic circular production.

3. The computer memory stores commonly used foam density relative parameters, convenient for subsequent use.

4. This machine is cost-effective, safe and stable, easy maintenance.

Technical Parameters

Our pre-expansion machine specifications ,customizable for your plant

Steam Full Automatic Pre-Foaming Machine

Key Features and Advantages

Full Automation: Fully automatic control system reduces the need for manual intervention, ensuring seamless operation and increased production efficiency.
Steam Expansion Technology: Uses steam to expand EPS beads for uniform size and density, ensuring high-quality foam products.
High-Capacity Production: Designed for large-scale operations, this pre-expander can handle up to X tons/hour of EPS beads, ensuring your production meets the demands of high-volume molding.
Energy Efficient: The steam pre-expansion process is optimized for energy efficiency, helping to reduce operational costs in large production environments.
Customizable Settings: Adjustable temperature and pressure controls for different foam types and expansion requirements, making this machine ideal for various applications, including Lost Foam Casting and foam molding.
One-button start with PLC controlled steam pre-foaming machine for zero manual errors
Closed constant pressure + hot air drying – saves steam and shortens ripening
Stable density (13-30 kg/m³) and uniform particles for high-quality lost foam casting
Full automation reduces labor by 70%

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Applications

This equipment is exclusively used in the "White Area" of a lost foam foundry. After the pre-expander machine processes the raw beads, the expanded beads are transported to the molding machine (Shape Molding Machine) to create the foam patterns.

EPS Foam Molding: Pre-expand EPS beads for use in various molding applications, including Lost Foam Casting.
Lost Foam Casting Systems: Key component in LFC for producing high-quality foam cores used in casting metal parts.
Automotive and Construction: Foam components for insulation and lightweight casting used in automotive parts and building materials.

How Batch Pre-Expander Works for Lost Foam

Raw EPS beads enter the chamber → automatic electronic weighing + steam injection under constant pressure → uniform expansion in 60-90 seconds → hot air drying prevents agglomeration → discharge for molding. This automatic EPS bead pre-expander ensures precise density control, far superior for lost foam white area than continuous models.

Why Choose Ruiou as your EPS Pre Expander Machine for Lost Foam Casting Manufacturer?

Custom Solutions: We offer custom pre-expander solutions tailored to your specific foam molding and Lost Foam Casting needs.
Global Supplier: As a trusted OEM supplier, we provide high-quality pre-expansion machines to clients worldwide, ensuring you get the best equipment for your needs.
Cost-Effective: Reduce production costs with high-efficiency pre-expansion technology that saves on energy and labor.

Request Free Pre-Expansion Machine Specifications

Request a Quote

Looking for a reliable, fully automated pre-expansion system for your Lost Foam Casting (LFC) operation? Contact us today for a customized quote and learn more about our steam pre-expansion equipment tailored for foam molding applications.

For more informations pls contact us!