Browse our lost wax casting projects

Lost wax investment casting, also known as water-glass investment casting, is a relatively labour-intensive process that involves challenging working conditions. We subcontract the production of lost-wax cast components to China, allowing you to benefit from highly competitive development and manufacturing costs while relying on our quality guarantee.

Our capacities in lost-wax investment casting

  • Parts ranging from a few grams to 100 kg
  • Available materials:
    • Carbon steel
    • Stainless steel
    • Aluminium and non-ferrous metals
  • Surface treatment solutions
  • 3- and 4-axis machining centres
  • Custom packaging

What is lost-wax investment casting?

Lost-wax casting is a process used to produce metal parts by pouring molten metal into moulds created around a wax pattern.

Typical stages of lost-wax casting include:

  1. Manufacturing the wax pattern
  2. Assembling the wax patterns into trees and hanging them from supports
  3. Coating the trees with a thick layer of refractory material to create the moulds
  4. Melting and removing the wax from the refractory material to create the mould cavities
  5. Pouring molten metal into the heated moulds
  6. Breaking the moulds and removing the cast parts
  7. Separating the parts from the trees by cutting
  8. Finishing the parts, including sandblasting, deburring, machining and surface treatment

Advantages of lost-wax casting

  • Suitable for casting highly complex parts
  • Very good surface finish, which can reach Ra 6.3–3.2
  • High dimensional accuracy, typically within a few tenths of a millimetre

Disadvantages of lost-wax casting

  • Because of the numerous operations required, lost-wax investment casting can be relatively costly and labour-intensive.
  • The manufacturing process is longer than for other casting methods.
  • It is difficult to cast large parts or parts with complex internal cavities.
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