Vast is the leading investment casting manufacturer in China. Vast specialized in precision investment casting with various surface treatments since 2003.
Vast supplies various precision casting parts, such as the medical industry, marine hardware, machined parts, mechanical products, pumps & valves, automotive parts, food & meat processing machinery, and so on.
We development high-grade components via stainless steel casting, carbon steel casting,alloy steel casting. Send us your CAD or 3D drawing to get the one-stop tailor-made service.
We handle large and small orders so you need have no constraint if your requirement is on the lower side. We ensure that equal quality standards are followed for orders of all sizes and our team takes care of the quality of each fixture individually, irrespective of whether you order one or a thousand!
The process begins with production of a heat disposable pattern. This pattern is usually made by injecting wax into a metal die or mold. Pattern is injected in Horizontal Automatic Injection Machine.
The wax patterns are attached by the gate to a central wax runner system. The runner system is called a sprue. Patterns, runners, and pouring cup compromise the cluster or tree. Radius is provided to all joints between pattern and runner. Same checked thoroughly before coating to avoid rejection due to sand inclusions.
The shell building technique involves dipping the assembly into a ceramic slurry and then into a bed of extremely fine sand. After drying,, the process is repeated. Up to 4 to 6 layers may be applied in this manner.
The completed shell is placed in a steam autoclave where the pattern melts and runs out through the gates and pouring cup.
The ceramic shell molds must be fired to burn out the last traces of pattern material and to preheat the mold in preparation for casting, usually in the range of 800 to 1100 degrees centigrade.
The preheated shell is filled with molten metal by gravity pouring. As the metal cools, the parts, gates, sprue, and pouring cup become one solid casting.
After the metal solidifies and cools, the ceramic shell is then removed by vibratory methods or water blasting.
Casting to be shot blasted to remove all small ceramic particles.
Individual casting is removed from the cluster by means of a cut off wheel or welding cutting.
Remaining gate protrusions are removed by belt grinding.
Casting is heat treated as per specifications.
Finally casting is sand blasted or glass bead blasted as per customer requirement, packed as per customer specification and dispatched.
Our main OEM Precision casting products are castings in stainless steel, carbon steel, alloy steel products serve for many trade as food, chemical, medicine, marine, automatic, architecture etc. 90% for exporting to America, Europe and some Asia countries.
Production capacity of 1,000 tons annually
We will provide solutions within 24 hours
CAD, ODM and 3D printer available
Free tooling for order over 1,000 pcs
100% strict inspection before shipment
0.25 inches to 6 inches available
Wall thickness as low as 0.020 inches
Prototypes to production runs in as little as 4-6 weeks
Prototype quantities to large production runs
Shell mold and solid mold capabilities
We will provide solutions based on your CAD or 3D drawing within 24 hours !
