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Lost Foam Casting


  • Max Size of Castings: 1,000 mm × 800 mm × 500 mm
  • Casting Weight Range: 0.5 kg – 100 kg
  • In-house CNC machining capabilities
  • Annual Capacity: 2,000 tons
  • Casting Tolerances: On Request.

>>>Be-cu has the lost foam casting system as well as several foam and gluing machines.

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Lost Foam Casting Company – Custom Lost Foam Casting Parts Service

Lost foam casting (also known as solid casting) is to bond and combine paraffin or foam models similar in size and shape to castings into model clusters, brush refractory coatings and dry them, and then embed them in dry quartz sand to vibrate for modeling. The new casting method is a new casting method in which the model is gasified by pouring down, and the liquid metal occupies the position of the model, and solidifies and cools to form a casting.

If you are seeking a supplier of Lost Foam Casting services and custom lost foam casting parts, here is the right place for you. In order to meet the mass production requirements of some customers and reduce costs, we work with our industry-leading suppliers to assist your project. The extensive and comprehensive network enables us to expand our capabilities and serve more clients across the world, especially those who require quality metal lost foam castings. Other than the lost foam casting process, a selection of other services can be applied based on your quote. The stable and long-term relationships between our partners and us allow us to deliver the best quality at the most competitive prices. Before the final order going on its way to customers, multiple quality inspections will be implemented at different production stages of the lost foam casting products. Welcome to send your inquiry or custom designs of lost foam casting parts to be made, we’ll send you a free quote within 24 hours in working days and work out a schedule for recording the progress.

Why Choose Be-cu Lost Foam Casting Service?

Be-cu provides a comprehensive line of lost foam equipment, including flask pouring, flask handling and flask compaction. Our line of foam bead processing equipment is recognized world wide as the industry standard.

  • Engineering team whose members are focusing on metal casting field.
  • Extensive experience with complex geometries parts
  • A broad range of materials, including ferrous and non-ferrous alloys
  • In-house CNC machining capabilities
  • One-stop solutions for castings and secondary process
  • Consistent quality guaranteed and continuous improvement.
  • Teamwork including toolmakers, engineers, foundryman, machinist and production technicians.

The Material Of Lost Foam Casting


The process of lost foam casting strongly resembles lost wax investment casting methods. However, foam (typically polystyrene foam) substitutes for wax during casting.

  • Cast Iron: Gray Iron, Ductile Iron (Nodular Iron), Malleable Iron
  • Aluminium and Its Alloys.
  • Carbon Steel: Low carbon, medium carbon and high carbon steel from AISI 1020 to AISI 1060.
  • Cast Steel Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo…etc on request.
  • Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L and other stainless steel grade.
  • Duplex Stainless Steel, Super Duplex Stainless Steel
  • Brass, Bronze and other Copper-based Alloys.
  • Wear-resistant Steel, Heat-resistant Steel and Special Steel Alloys.

The Advantages Of Lost Foam Casting


1.High Casting Precision

Lost foam casting is a new process with almost no margin and precise molding. This process does not require mold taking, no parting surface, no sand core, so the casting has no flash, burr and draft angle, and reduces the core The size error caused by the combination. The surface roughness of the castings can reach Ra3.2 to 12.5μm; the dimensional accuracy of the castings can reach CT7 to 9; the machining allowance is up to 1.5 to 2mm, which can greatly reduce the cost of machining. Compared with the traditional sand casting method, it can be reduced by 40 % To 50% of machining time.

2.Flexible Design

It provides sufficient freedom for the design of casting structure. Highly complex castings can be cast by combining foam plastic molds.It is not only suitable for large castings, mechanized operations, but also for manual splicing models of small batch products.

3.No Sand Core In Traditional Casting

Therefore, there will be no uneven wall thickness of the casting caused by the inaccurate size of the sand core or the inaccurate position of the lower core in the traditional sand casting.

4.Cleaner Production

There is no chemical binder in the molding sand, foam plastic is harmless to the environment at low temperature, and the recovery rate of old sand is more than 95%.

5.Reduce Investment And Production Costs

Reduce the weight of the casting blank, and the machining allowance is small.The dry sand buried model can be reused, with less industrial waste, no burrs, cleaning time can be reduced by more than 80%, and the cost is significantly reduced.

6.Wide Range Of Applications

It can not only cast iron, ductile iron, but also cast steel at the same time, so the transfer is flexible and widely used. It is not only suitable for small and medium-sized parts, but also for large-scale castings, such as machine tools, large-diameter pipe fittings, large-scale cold mold parts, large-scale mining equipment parts, etc.

7.Disadvantages And Limitations

The lost foam casting process is the same as other casting processes, with its shortcomings and limitations. Not all castings are suitable for production using the lost foam process, so a specific analysis is required. Mainly based on the following factors to consider whether to use this process.

  • The batch size of castings: the larger the batch size, the greater the economic benefits.
  • Casting material: the order of good applicability and poor applicability is roughly: gray cast iron-non-ferrous alloy-ordinary carbon steel-ductile iron-low carbon steel and alloy steel; pass the necessary preparations so as not to cause process experiments , The debugging cycle is too long.
  • Casting size: Mainly consider the use range of corresponding equipment (such as vibrating table, sand box).
  • Casting structure: The more complex the casting structure, the more it can reflect the superiority and economic benefits of the lost foam casting process. For the structure with narrow internal cavity channels and interlayers, it is necessary to conduct experiments in advance before using the lost foam process. produce.
Lost Foam Casting Mold Making
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