Revolutionizing Precision and Flexibility: Shell Molding Casting (Ceramic-Coated)
Kunyongda International Co., Ltd. offers a breakthrough Shell Molding Casting solution. By utilizing a specialized process of coating a ceramic shell layer over a sand mold, we perfectly merge the advantages of both traditional technologies, creating the optimal manufacturing path tailored for demanding small to medium-batch orders.

This is a hybrid casting process that combines the characteristics of sand molds and ceramic molds. In this process, the basic shape of the workpiece is first formed using a sand mold. Then, a dense ceramic shell layer (similar to the ceramic face coat used in investment casting) is coated on the surface of the sand mold. This highly refractory and ultra-fine ceramic layer makes direct contact with the molten metal, drastically improving the final quality of the casting.
By adopting Kunyongda’s ceramic-coated shell molding technology, you gain the following key benefits:
It simultaneously possesses the "easy-to-shape and design-flexible" characteristics of sand casting, along with the "high precision and excellent detail reproduction" of investment casting.
The ceramic shell effectively prevents direct contact between the molten metal and sand grains, eliminating the sand inclusions and rough textures common in traditional sand casting. The casting surface is much smoother, and dimensional tolerances are more stable, effectively reducing subsequent machining allowances.
It eliminates the need for expensive metal or wax injection molds, significantly lowering tooling amortization costs during the initial development phase. It is the most cost-effective choice for producing high-quality parts in "small to medium volumes with high variety."
Due to its cost-effectiveness and high precision, this shell molding technology is widely used in:
Automation equipment components that require rapid prototyping and small to medium-batch production.
Pump housings and high-pressure valve bodies that require smooth internal flow channel surfaces.
High-strength alloy brackets with complex structures requiring lightweight designs.
Kunyongda is not just a casting expert, but a comprehensive precision machining integrator. We seamlessly transition high-quality Shell Molding Casting blanks into our in-house turn-mill machining, grinding, polishing, and surface treatment processes. Through a single-point-of-contact, one-stop service, we help global customers shorten development timelines, reduce cross-factory communication risks, and ensure that every precision product perfectly meets international standards.


