Dandong Dawang is a professional shell mould castings factory in china. Shell mold casting is a precision casting process. It is usually used to produce metal parts with high dimensional accuracy and a smooth surface finish. Shell mold casting is a variation of the sand casting process. It is often utilized for complex shapes and intricate details.
We can produce shell mold casting parts with weight ranging from 5kg-2t.
Quick drying technology can greatly improve production efficiency
Shell mold casting production cycle is short. We can shorten the lead time and improve efficiency for you.
Shell casting is used in agricultural machinery, oil pipeline valve bodies, etc.
Efficient production capacity can ensure that we complete orders in a short time.
Shell molding can replace the precision casting.The price is lower than the precision casting.
Dawang Castings started planning for shell moulding production in 2018. The aim was to use precoated sand made of phenolic resin and pearl sand to conduct the shell moulding casting research. Our team in charge of this research underwent many tests and mass productions that upgraded to a mature shell moulding casting technology.
However, Dawang casting can produce high-quality shell moulding castings in a cost-effective solution with finer details. We are preparing the automated production line for the complete shell moulding process. By 2023, Dawang Casting will officially launch its shell moulding mass production.
At present, six automatic double-station core shooting machine sets and two single-station core shooting machine sets are available at Dawang Castings. These machines can produce a variety of castings with an overall dimension of 1000mm x 1000 mm and a unit weight of no more than 100Kg thanks to their 1200mm × 1200 mm maximum tooling installation capacity.
Dawang Castings’s first goal is to ensure the products’ quality. We maintained our reputation by providing the best quality products for decades. However, to reduce the impact of human factors and guarantee product consistency, the production process uses a combination of parameterized control and standardized procedures.
Dawang Castings continues to invest in cutting-edge technology to produce increasingly complicated parts for its clients. As a result, we can create any casting, even those with intricate moulds. However, the tooling in Dawang Castings is made of high-quality alloy cast iron, which has a small thermal expansion coefficient, small thermal deformation, good strength, and wear resistance, so the accuracy and consistency of the product are well guaranteed.
Shell mould casting is famous for a wide range of industrial applications. Some best examples of shell mould castings are gearbox housing, cylinder head, hydraulic or pneumatic valve bodies, truck hoods, small boats, camshafts, engine blocks, automotive transmission parts, break beams, manifolds connecting rods, lever arms, bathtubs, drum shells, body panes, etc.Besides the products mentioned above, the agricultural, automotive, petrochemical, and construction industries require shell mould casting to create the machinery for their respective fields.
Shell moulding is an upgraded version of the traditional sand-casting system. Therefore, we expect a lot of benefits from the shell castings. However, the following points are some of the most popular advantages you might expect from shell castings.
Shell moulding is an upgraded version of the sand casting technique. Sand casting typically uses expandable mould, whereas shell moulding uses a ready-made thin-walled shell. The following points are the direct comparisons of shell moulding vs sand casting.
| Shell Moulding | Sand Casting |
| Creates a thick shell around the casting pattern | It doesn’t need such a technique, and it’s simply expandable |
| Creates a more refined surface finish | Produces a rough surface that needs further machining |
| Produces tighter tolerances | Have fewer tolerances |
| Suitable for small and medium-sized castings | Suitable for medium and large-size castings |
| Has high geometrical accuracy | Has low geometrical accuracy |
| Works both for ferrous and non-ferrous metals | Works both for ferrous and non-ferrous metals |
| Easy and cost-effective solution | Easy and cost-effective solution |
Shell moulding is also famous as shell mould casting. Shell moulding is a metal moulding process that uses a sand-base mould and a thin-walled (10 to 20 mm) shell to create different complex metal shell castings. Most industries use resin-covered sand for shell moulding. Compared to the sand-casting process, shell moulding produces better dimensional accurate products with lower labour costs and higher productivity.
A typical shell moulding process works with ferrous and non-ferrous metals, such as cast iron, alloy steel, carbon steel, stainless steel, etc. Usually, shell moulding is ideal for small and medium-sized metal castings in most cases. In some cases, this process also creates larger metal shell castings.
