Qingdao Rinborn Machinery Co., Ltd.
+86 186 6184 7678
At RMC Foundry, we adopt many alternative casting processes to cast the metals and alloys as per customer's requirements or based on our development. Different metal and alloy is suitable to its best castings process considering the end-user's requirements and cost effective. For example, the gray cast iron is usually suitable to be cast by sand casting process, while the stainless steel tend to be cast by lost wax investment casting.
There are many factors we should take in account when we choose the right casting methods, such as the castability of the materials, requirement of weight (Aluminium and Zinc alloys are much lighter than other alloys), mechanical properties and if any special required performance in wear resistance, corrosion resistance, damping...etc. If we choose the precision casting (usually refer to the investment casting), there will be less or no need for CNC machining, which could save the whole manufacturing cost substantially.
Thanks to our rich experience and the well-organized equipment, we have diverse choices of castings for different industries. What we specialize are mainly sand casting, investment casting, shell mold casting, lost foam casting, vacuum casting and CNC machining. Both OEM custom services and independent R&D are available at our factory. The professional engineering is our core competitiveness.
More than 100 kinds of grades of metal and alloys are cast at our foundry. They are mainly range gray cast iron, ductile cast iron, malleable cast iron to carbon steel, alloy steel, stainless steel and aluminium and copper alloys. Therefore, from our service, you can both choose the right casting process and materials to meet your respect request. Many of our custom casting components are serving wide ranges of mechanical and industries partners from Europe, America, Asia, Australia and of course, in China.
Investment casting, also known as lost wax casting or precision casting, is specially suitable for net or near-net metal castings with complex, compact and precision structure.
Sand casting, which uses the sand (green clay sand or dry sand) to form the casting mould for pouring molten metal, is one of the most popular and simplest types of casting.
Resin casting process is especially suitable for casting big metal parts up to several tons per piece with a reasonable costs and fine surfaces regardless of the quantity is small or big.
Shell molding casting is also called pre-coated resin sand casting process, hot shell molding castings or core casting process. The main molding material is the pre-coated phenolic resin sand, which is more expensive than green sand and furan resin sand.
Forging is a metal forming process by hammering or pressing hot metal into the pre-produced metal dies. Compared to the free forging without dies, the die forging is also called precision forging because of the warm or hot metal could fill into the complex forging molds
Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process. It is aided by the CNC to reach a high and steady accuracy with less labor cost.
The normal heat treatments we are proceeding on metal castings mainly include Quenching, Tempering, Normalizing, Solid Solution, Annealing, Carburization and other methods according to your request.
Including but not limited to: Sand Blasting, Painting, Anodizing, Passivation, Powder Coating, Electroplating, Zinc-plating, Hot-Zinc-Plating, Polishing, Electro-Polishing, Nickel-Plating, Blackening, Geomet, Zintek....etc
RMC foundry is always ready to continue to invest in Research and Development (R&D) to optimize manufacturing processes, improving quality and better services. The professional proposal is also available for a balance of feasibility and the desired design.
| Capabilities for Casting at RMC | ||||||
| Casting Process | Annual Capacity / Tons | Main Materials | Casting Weight | Dimensional Tolerance Grade (ISO 8062) | Heat Treatment | |
| Green Sand Casting | 6000 | Gray Cast Iron, Ductile Cast Iron, Cast Al, Brass, Cast Steel, Stainless Steel | 0.3 kg to 200 kg | CT11~CT14 | Normalization, Quenching, Tempering, Annealing, Carburization | |
| Resin Coated Sand Casting (Shell Casting) | 0.66 lbs to 440 lbs | CT8~CT12 | ||||
| Lost Wax Investment Casting | Water Glass Casting | 3000 | Stainless Steel, Carbon Steel, Alloy Steel, Brass, Aluminium, Duplex Stainless Steel, Cast Iron | 0.1 kg to 50 kg | CT5~CT9 | |
| 0.22 lbs to 110 lbs | ||||||
| Silica Sol Casting | 1000 | 0.05 kg to 50 kg | CT4~CT6 | |||
| 0.11 lbs to 110 lbs | ||||||
| Lost Foam Casting | 4000 | Gray Iron, Ductile Iron, Alloy, Carbon Steel, Stainless Steel, Brass, Aluminium | 10 kg to 300 kg | CT8~CT12 | ||
| 22 lbs to 660 lbs | ||||||
| Vacuum Casting | 3000 | Gray Iron, Ductile Iron, Alloy Steel, Carbon Steel, Stainless Steel | 10 kg to 300 kg | CT8~CT12 | ||
| 22 lbs to 660 lbs | ||||||
| High Pressure Die Casting | 500 | Aluminium Alloys, Zinc Alloys | 0.1 kg to 50 kg | CT4~CT7 | ||
| 0.22 lbs to 110 lbs | ||||||
