Custom Lost Foam Mold Manufacturer – EPS, EPO, EPE, ETPU & EPP Foam Mould Supplier for Casting Patterns

Engineered for the lost foam casting route, this custom mold is built from aluminum alloy and designed to produce expendable foam patterns for metal casting. It can be configured for EPS as well as other expandable foam materials such as EPO, EPE, ETPU, and EPP, depending on the pattern requirements of the casting program. The tool incorporates steam and cooling passages, venting, and ejection features to support uniform bead fusion and clean pattern release. Each mold is machined to customer drawings and can be supplied in single or multi-cavity layouts. The molded foam pattern is later coated with refractory material, embedded in sand, and replaced by molten metal during pouring.

 Specifications

Mould Features

• Broad Foam Material Compatibility – The mold can be set up for EPS, EPO, EPE, ETPU, or EPP, giving flexibility in pattern density, surface behavior, and downstream casting performance.

• Aluminum Alloy Tool Construction – The mold body is machined from aluminum alloy, which offers rapid thermal response during steam heating and cooling, resists moisture in foam molding service, and keeps tool weight manageable.

• Integrated Steam and Cooling Circuits – Internal passages are arranged to deliver steam for bead expansion and water for cooling, helping maintain consistent foam pattern density and dimensions.

• Venting and Ejection Design – Vent paths and ejector provisions are incorporated to promote complete cavity fill and allow clean removal of fragile foam patterns without damage.

• Custom and Modular Cavity Layout – The tool can be built with single or multiple cavities, using replaceable inserts and split-block construction to simplify maintenance and future geometry changes.

Applications

• Automotive Casting Patterns – Foam tooling for producing expendable patterns used in engine, transmission, and structural castings.

• Machine Tool Bed and Column Patterns – Molds for foam patterns applied to machine tool beds, bases, columns, and housings.

• Pump, Valve, and Compressor Patterns – Tooling for foam patterns used in fluid handling and industrial machinery castings.

• Heavy Machinery and Agricultural Patterns – Molds for foam patterns applied to construction, mining, and agricultural equipment castings.

• Prototype and Trial Casting Patterns – Tooling for development projects, process validation, and small-batch lost foam casting runs.

Manufacture Process
1. Review the part design,drawings and quality standard from clients.
2. Mould and Tooling design & manufacturing
3. Mould and Tooling testing & confirm the sample
4. Die casting raw castings
5. Surface treatment: Trimming,Deburring, polishing, cleaning, passivation & power coating and other requirement from Customer
6. Precision machining: CNC lathes, milling, drilling, grinding etc
7. Full Inspection
8. Packing
9. Delivery

Packing & Shipping

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.

 
Our Advantages
1. We are the biggest lost foam mould manufacturer in China, we focus on high challenge lost foam mould and we have large gantry machining centers,30 sets imported high speed machining center,more than 40 sets general machine tool equipment;
2. We have 36 senior mould designers, to ensure reasonable / safety / high efficiency mould design and ensure the fast mould delivery and rational mould structure, make the process more safer and the production efficiency more higher;
3. We using numerical control machine tool to manufacture the mould cavities, to ensure a even thickness ;
4. We using ZL104 Aluminium to casting the mould, to manufacture a high strength mould;
5. For the big mould, we using Ø22*1 copper tube as cooling pipe, with water spray system, to get a nice cooling effect;
6. We Have (TEF10N) coating on the mould surface, it can reduce the friction, anti water/static electricity/acid-base/high-temperature, with this we can ensure the pattern has smooth surface without distrotion, and easy to demould;
7. All the screws we using stainless steel screw, easy to disassemble during maintenance;
8. For the big mould chest, we using 18-20mm thick wrought aluminium plate, to offer high strenght cavity ;
9. For the complex mould which is difficult to demould, we can manufacture the automaitc mould with take out device ;
10. We produce the pattern sample to customer after finish the mould, when the pattern was qualified, then we do exceptance job for the mould ;
11. We have the Hexagon coordinate measuring instrument imported from the Switzerland to have a test make sure our mould qualified.
 
Company profile
 
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 proecss 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.