Cast Iron Foundry Supplied Sand Casting Production
Sinoway offers sand casting production and custom metal casting parts made in our cast iron foundry
Sand casting is a historically based process to manufacture metal products. Sinoway’s cast iron foundry has been producing sand casting products since the 1990s. By now, the foundry has owned automated sand-molding lines, core making machines, and electric furnaces up to 2T, and the foundry’s capacity can be up to hundreds of tons per month. And as a cast iron supplier, we also equipped the foundry with advanced testing instruments such as molten iron analyzers, spectrometers, and metallographic microscopes to guarantee the iron’s grade and mechanical properties.
Our cast iron products ranged from hundreds of grams to several tons, and the casting materials include ductile iron, malleable steel(iron), gray iron, etc. Meanwhile, we have our own CNC machining workshop, where we can make the patterns and subsequent machining of the casting blanks to meet the customers’ one-stop requirements.
If you have a metal part that needs to be customized, either for prototype or mass production, contact us now and immediately enjoy our services.
What are sand casting and iron foundry?
Sand casting, or we can call it sand mold casting, is a casting method that uses sand to make a mold to produce castings. We can manufacture steel, iron, and most non-ferrous alloy products with a sand casting process. Due to the low cost and easy availability of the molding materials, both small batch and mass production can go with the sand casting process. It has been a fundamental process in the casting field for a long time. And an iron foundry is a factory where we can produce cast iron products, usually, proceed with a sand casting process.
There are several procedures involved in the whole sand casting process.
1. Make the pattern of the casting part, and we can call it Mold-making Step
2. Place the pattern into the flask and form the cast gating system
3. Put the sand into the flask, and remove the pattern after the sand get compacted, to make the sand casting mold
4. Cast the molten iron into the mold cavity via the gating system
5. Break the sand mold and separate the iron part apart from the sand after the iron get cooled
6. Clean the cast iron parts and remove the extra materials like the gates and flashes via cutting and grinding processes
Sand casting procedures
Benefits of the sand casting process include
- The molding material is inexpensive and accessible easily
- Simple molding and casting operations
- Cheap casting cost
- Short production cycle
- Suitable for both small-batch and mass production, even a single piece production
Choose Sinoway cast iron foundry and save 10% cost for your cast iron project
Based on more than 20 years of practice, and overall technical support from our rich-experienced engineering team, Sinoway can supply customers with the most optimal solution to choose the right iron casting process and material, that averagely saved 10% cost for their project. Meanwhile, due to our service team’s quick response, we are always there any time when you need us, standing together with the customer and saving time for both of us.
Benefits of Sinoway cast iron foundry include:
1. Our production facilities have automated sand feeding systems, automatic core making lines, cope-and-drag pattern production lines, electric induction furnaces up to 2T, and testing instruments including molten iron chemical composition analyzer and spectrometer, and metallographic microscopes.
2. Sinoway can manufacture castings made of all ductile iron, grey iron, and malleable steel grades. And from ounces to tons, we can meet all your requirements, from prototyping to mass production.
3. A technology supporting team that includes both hands-on production engineers coming from the workshop and professional design engineers from modern universities;
4. In addition to sand casting production lines, Sinoway also has other casting processes, including precision lost wax investment casting, lost foam sand casting, pre-coated sand mold casting, and die casting. And Sinoway also supplies other metal part production lines such as sheet metal stamping, drop forging, CNC machining, Welding, and surface treatment to meet customers’ demands for one-stop service of manufacturing the whole set of their products.
Quality control policy of Sinoway iron foundry
Sinoway has established our quality management policy strictly following the ISO 9001 standard in the cast iron foundry. We require every step of the order execution to be managed and controlled according to this policy to provide customers consistent quality products and services.
Our quality management policy includes the following aspects.
- Molten metal composition analysis before each casting;
- Sample quality inspection, including dimensions, chemical composition, and mechanical properties;
- Mass production casting procedure monitoring;
- Quality inspection after mass production;
- Packaging and transportation inspection;
- All tests must have traceable inspection reports on file.
Ductile iron, Grey iron, and Malleable cast iron in sand casting
In a cast iron foundry, ductile iron, malleable iron, and grey iron are the most commonly used materials. In these three types of cast iron, the element carbon exists in graphite but differ in forms.
- Ductile Iron
The graphite of ductile iron exits in nodular form after spheroidization and breeding treatment during the casting process. And this improves the mechanical properties of the cast iron, especially in plasticity and ductility. And the strength of ductile iron is close to steel, and even some ductile iron gets higher strength than steel.
- Grey Iron
The graphite of grey cast iron is in flake form, so the effective bearing area is relatively smaller. And this is why grey iron has lower strength, plasticity, and ductility than other cast iron. But grey iron has better anti-vibration property, higher wear resistance, and good machining performance after heat treatment.
- Malleable cast iron
Malleable iron is a high-strength cast iron made by graphitizing and annealing white cast iron. The graphite exists in floc form, and it makes malleable iron have better mechanical properties. And because malleable iron has similar plasticity and ductility as steel, it is also known as Malleable Steel.
Win-Win Cooperation
With our specialty in metal parts production, we have been serving many customers engaged in different industries like Home Appliances, Construction, Automobiles, Heavy Equipment, etc.
