High Efficiency EPS Lost foam casting  pre-forming machine

Product Description

Introduction of lost foam casting line

The lost foam casting process originated in 1958 when H.F. Shroyer was granted a patent for this cavityless casting method, using a polystyrene foam pattern imbedded in traditional green sand. The polystyrene foam pattern left in the sand is decomposed by the molten metal. The molten metal replaces the foam pattern, precisely duplicating all of the features of the pattern. Like investment casting (lost wax process), a pattern must be produced for every casting made.

First a foam pattern and gating system are made using a molding press. Secondly, the foam pattern and gating system are assembled into a cluster. Then the cluster is coated with a permeable refractory coating. The next step is to invest the dry coated cluster in loose unbonded sand that is vibrated in and around the foam cluster. The final step in the casting process is to pour the molten metal directly into the foam cluster, decomposing the foam in the system and replacing it with metal. The balance of the casting cleaning operations (cut off, grind, heat treat, straightening and blast) are straight forward and quite similar to other casting processes.

The principle of the machines

This process takes advantage of the low boiling point of foam to simplify the investment casting process by removing the need to melt the wax out of the mold. 

It has the features of low investment, high efficiency, less labor, stable performance, agile production and extensive applicable scope, hence it is applicable to technical reformation in newly-built casting factory or old casting factory.  

Packaging & Shipping

Packing: Nude packing and bulk packing

Shipping: If our clients do not have a certain port, we recommend Qingdao.

Our Services

1. Reply your inquiry in 24 working hours.

2. Experienced staffs answer all your questions in fluent English.

3. Customized design is available.

4. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staff.

5. Professional factory : We are manufacturer, specializing in producing all kinds of machinery for many years, competitive with good quantity.

6. As an honest seller, we always use superior raw material, advanced machines, skilled technicians to ensure our products to be finished in high quality and stable feature. Welcome to contact us or visit our company.

Company Information

Qingdao Shengmei Machinery Co., Ltd is specialized in producing vacuum process casting machine, resin sand reclamation and molding machine, lost foam casting machine, dust collector, shot blasting machine and sand blasting machine. We always bear "Honesty is the source and we should produce boutique" in mind and insist on the business policy of "quality of survival, innovation and development, to manage for efficiency". With first-class technology, first-class products and first-class service, we wholeheartedly cooperate with you.