Full CNC Process Aluminum EPS Foam Mold Precision Expanded Polystyrene Box Tooling for High-Volume Packaging Production

Our aluminum EPS foam mold is manufactured using a full CNC machining process, ensuring high precision and consistency in the production of expanded polystyrene (EPS) boxes for packaging applications. The mold is constructed from high-grade aluminum alloy, selected for its thermal conductivity and resistance to steam corrosion in EPS molding environments. CNC machining enables accurate reproduction of customer-specified box geometries, including wall thickness distribution, lid fitting surfaces, and stacking features. The mold incorporates integrated steam channels and water cooling circuits, arranged to support controlled bead expansion and uniform solidification. Designed for mounting on standard EPS shape molding machines, this tooling delivers reliable performance for high-volume production of lightweight, rigid EPS boxes.

We can make EPS mould for any EPS products like electrical products packaging, boxes, EPS pallets, construction panels, ICF etc.

Choosing the right EPS Foam Mould partner is crucial. We go beyond simply supplying a mold; we offer comprehensive support from initial design consultation and material selection guidance through mold commissioning and troubleshooting. Our commitment is to be your trusted partner, ensuring your EPS molding project achieves optimal quality, efficiency, and return on investment.

• Full CNC Machined Cavities
  The entire mold, including cavity surfaces, venting slots, and fill ports, is produced using CNC equipment, ensuring consistent dimensional accuracy and repeatability across the tool's service life.
• Aluminum Alloy Construction with High Thermal Conductivity
  The aluminum body provides efficient heat transfer during steam injection and rapid cooling afterward, supporting uniform bead fusion and reducing cycle-to-cycle variation in box dimensions.
• Precision-Machined Sealing and Stacking Features
  Cavity edges and closure surfaces are machined to produce boxes with accurate lid fits and stable stacking geometry, minimising post-moulding trimming and improving handling efficiency.
• Corrosion-Resistant Surface Treatment
  The mold is treated to withstand repeated exposure to steam and condensation, maintaining surface finish and dimensional stability over extended production runs.
• Reinforced High-Wear Zones
  Areas subject to mechanical stress, such as parting lines and ejection points, are reinforced to reduce maintenance frequency and extend the productive life of the tool.

• Cold Chain Food Packaging – Producing EPS boxes for shipping seafood, meat, and fresh produce, requiring consistent thermal insulation and structural rigidity.

• E-Commerce Protective Shipping – Manufacturing lightweight foam boxes for fragile electronics, glassware, and luxury items requiring impact-resistant packaging.

• Pharmaceutical Temperature-Controlled Transport – Molding EPS boxes for vaccine distribution, lab samples, and biologics, where uniform wall thickness supports predictable thermal performance.

• Industrial Component Shipping – Producing large-format EPS boxes for automotive parts, machinery spares, and oversized industrial components.

• Returnable Logistics Containers – Creating durable EPS boxes for reusable packaging programs in manufacturing and retail supply chains.

1. High Precision Processing Machine - Make Tolerance ≤ 5um. Positional Accuracy can be controlled within ± 2um for some workpieces
2. High quality - Passed the ISO9001:2008 quality system authentication and ROHS authentication
3. Superb workmanship - Get more than 20 Certificates

Flexible Shipping Options: We understand that every customer has unique needs. That's why we offer flexible shipping options, including air freight, sea freight, and expedited delivery services. Our team will work with you to determine the most cost-effective and efficient shipping method based on your timeline and budget.

• Full In-House CNC Capability – All machining operations, from rough cavity cutting to final finishing, are performed within our facility using CNC equipment, ensuring process control and direct communication.
• Design-to-Manufacturing Integration – We review your box drawings and provide practical recommendations on wall thickness, draft angles, and vent placement to improve moldability and reduce trial cycles.
• Material Quality Assurance – Aluminum alloys are sourced from accredited mills, with material certificates available for full traceability.
• Trial Molding Service – We conduct sample runs using your specified EPS bead grade and supply molded boxes with dimensional inspection reports for your approval prior to mold delivery.
• Comprehensive Documentation – Each mold is delivered with assembly drawings, steam and cooling circuit diagrams, spare parts lists, and a maintenance schedule.

Luoyang Liushi Mould Co., Ltd was established on 2001, which is National Standard Setting Unit for Lost Foam Casting Mould. The company is located in the Millennium Emperor, peony flower city of Luoyang City. We have 9800 office building, and 22000 workshop, which is well equipped with research, development, design, foundry, machining, assembly, surface treatment and other equipment. It's a Luoyang municipal R&D center and technology center.

Company technicians can provide on-site guide mould assembly, test production, free repair and complete technology for lost foam casting process according to customer demands. With the business philosophy of "careful design, lean manufacture, best service, perfect quality", we strive to provide satisfactory products and services for customers. After years of development, our company has become the preferred mould suppliers of many lost foam casting manufacturers and the exclusive supplier.