EPS Shape Moulding Machine（eps shape molding machine），
It is the core equipment used to heat, fuse and cool the pre foamed EPS beads in a specific shape mold, and finally produce various three-dimensional EPS foam products. The product is widely used in packaging (such as electronic product liners, fruit trays), architectural decorative lines, handicrafts, fishing floats, and other fields.
Core working principle and process of EPS Shape Molding Machine（eps shape molding machine）
EPS Shape Moulding Machine（eps shape molding machine） The job is an automated cycle of steam heating water cooling shaping, and the mold cavity determines the final shape of the product.
Mold closing and filling: The Yin Yang mold is closed, and the pre formed beads are blown into each corner of the complex mold cavity through an automatic filling system with multiple points and guns, ensuring uniform filling.
Steam heating (penetration and fusion): Saturated steam penetrates the bead layer through the micropores (steam needles) on the mold, causing its surface to soften, expand, and tightly fuse, filling the entire mold cavity.
Pressure holding and cooling: After a brief pressure holding, switch to cooling water circulation to quickly cool and shape the product.
Mold opening and demolding: When the mold is opened, the finished product is usually automatically ejected through compressed air, ejector pins, or robotic arms.
Finished product processing: The detached products are sent out by a conveyor belt and may require post-treatment such as drying or water outlet removal.
Types and characteristics of EPS Shape Molding Machine
According to the mold structure and product requirements, it is mainly divided into the following categories:
| Type | Vertical molding machine | Horizontal molding machine | Dual/Multi station Rotary Table Machine |
|---|---|---|---|
| Working Principle | The mold opens and closes vertically, and the product is vertically demolded. | The mold opens and closes horizontally, causing the product to come out horizontally. | Equipped with a rotatable worktable, one station is used for forming/cooling, while the other station is used for demolding/filling. |
| Core Features | Good filling effect, especially suitable for complex, deep cavity products that require uniform density. It occupies a relatively small area. | Classic structure, good operating visibility, easy maintenance, suitable for flat or shallow cavity products. | The production efficiency is extremely high, with almost continuous output of products and the highest degree of automation. |
| Typical Product | Complex electronic product liners, helmet liners, deep cavity crafts, and high demand packaging. | Cake trays, regular fruit trays, architectural lines, and boards. | Large quantities of small and medium-sized standard parts, such as cup lids, fishing floats, and fast food boxes. |
EPS Shape Molding Machine（eps shape molding machine） Selection and Technical Considerations
Choosing a special-shaped forming machine is much more complex than a block machine, and the following points should be focused on:
Mold is the first core
Design and processing: The mold must be designed by a professional manufacturer to ensure a reasonable steam circuit, uniform cooling, and smooth demolding. Aluminum alloy molds have fast thermal conductivity and short cycle, suitable for large quantities; Stainless steel molds are durable, high-precision, and suitable for complex products.
Steam needles and breathable plugs: Their distribution and quantity on the mold directly determine whether the product can be formed intact and without shrinkage deformation.
Equipment performance matching
Tonnage: Calculated based on the projected area and molding pressure of the product, ensuring that the mold does not expand under steam pressure.
Steam consumption: The production of irregular parts has large fluctuations in steam, and the equipment needs to have a fast response steam system.
Automation level: Automatic filling machines, robotic arms for picking up parts, and finished product counters are essential options for improving efficiency and reducing manual labor.
Product trial molding must be conducted
This is an indispensable step. You need to provide (or jointly develop with the manufacturer) 3D drawings of the product, and the manufacturer will make sample molds for trial production.
Verification: Test the dimensional accuracy, surface smoothness, fusion strength, density uniformity, and smooth demolding of the product.
Summary and Action Checklist
Choosing an EPS Shape Molding Machine（eps shape molding machine） is essentially choosing a complete solution of "equipment+mold+process".
Clear product definition: Prepare product drawings or samples, specify material (EPS), size, weight, and daily production requirements.
Choose cooperation mode: Determine whether to independently design molds or entrust equipment manufacturers to provide a complete set of services from product design to mold manufacturing.
Request comprehensive plan: Provide product information to suppliers and request them to provide a comprehensive plan that includes equipment selection, mold scheme, trial mold plan, production capacity estimation, and total quotation.
Inspection and trial molding: Visit the factory, with a focus on inspecting its mold workshop and trial molding center. Persisting in conducting paid trial molding is the only criterion for testing the technical capabilities of suppliers.
Evaluate service capability: Confirm whether the supplier can provide continuous process debugging support and mold maintenance services.
If you can provide the type of product you plan to produce (e.g. electronic product liner or fishing float?) and the approximate number of mold cavities required, I can analyze the more suitable equipment type and provide configuration recommendations for you.
Why choose our Principle, workflow, and purchasing guide of EPS shape molding machine?
If you want to beat your competitors in product quality and capacity, you have to use our EPS pre expander machine. The reasons are as the following: ;
1.China manufacturer of eps foam machine since 1980s. ;
The best eps machine including EPS pre expander,EPS block molding machine,EPS shape molding machine,EPS cutting machine etc is made in our factory.
2. Professional EPS Machinery Manufacturer
Our engineers have 40+ years experience in EPS machinery. Our persons are rofessional,enthusiastic and responsible Each device undergoes a rigorous testing procedure
3. 7X24 H Support (info@eps-cn.com)
Customers participate in the test machine.It's our duty to install and debug the products and train the customers for free until they learn how to use it.
4. Easy operation.
Our machines have been tested by many customers and have been improved many times according to many customers’ feedback. The operation of our machine is more and more practical and easier and easier. We are the manufacturer in China that specially makes EPS machine only and we are the leader of Chinese EPS foam machinery industry.
5. Professional service team.
We have engineers and technicians who engaged in the overseas installation and technical training.
