Your Reliable Shell Mould Castings Factory 

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.

Shell Mold Castings

Advantages of Shell Mold Casting

5kg-2t Castings 

We can produce shell mold casting parts with weight ranging from 5kg-2t.

Quick Drying Technology

Quick drying technology can greatly improve production efficiency

Fast Delivery

Shell mold casting production cycle is short. We can shorten the lead time and improve efficiency for you.

Wide Range of Applications

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.

Lower Cost

Shell molding can replace the precision casting.The price is lower than the precision casting.

Shell Moulding Process

1. Creating the Pattern


2. Shell Mould Manufacturing

3. Shell Mould Assembly



4. Smelting and pouring



5. Cleaning

Full Inspection

 6. Inspection


Why Choose Us

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.



Equipment Capacity

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.

Quality Assurance

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.

Latest Tooling Facility

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.

Applications of Shell Mould Casting


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.


Agricultural Machinery Casting

Railroad Casting

Railroad Casting

Petrochemical Engineering Casting

Material Handling Equipment

Construction Machinery Casting

Valve Body Casting

Valve Casting

Automobile Casting Parts

Automobile Casting 


Benefits of shell moulding

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.

  1. Easy and cost-effective:Shell moulding is easy to operate and requires less sand than traditional sand casting. As a result, shell castings are cost-effective.
  2. Quality surface finishes:Resin-covered sand creates high-quality and smooth surface-finished shell castings. As a result, it reduces the additional machining for final finishing, reducing the overall cost.
  3. Dimensional Accuracy on rough castings is high:Shell moulding uses rigid and hard moulding material that does not allow the molten material to swell. As a result, the final rough shell castings come with smaller dimensional tolerances that do not require additional machining, reducing the cost. In typical shell moulding, up to .25mm dimensional tolerance is possible.
  4. Complex shell castings and thin wall thickness:Shell moulding can produce a thin wall thickness of less than 5mm, which is hard for sand casting. Besides, the shell moulding process performs the casting process through hot shells and cold moulds, which can produce different complex shapes.
  5. Require less labour and skills:An automated machine performs the job in typical shell moulding. As a result, this process requires fewer workers, reducing product costs. In addition, as the casting machines are automated, it does not require high operating skills.
Shell moulding vs sand casting

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 MouldingSand Casting
Creates a thick shell around the casting patternIt doesn’t need such a technique, and it’s simply expandable
Creates a more refined surface finishProduces a rough surface that needs further machining
Produces tighter tolerancesHave fewer tolerances
Suitable for small and medium-sized castingsSuitable for medium and large-size castings
Has high geometrical accuracyHas low geometrical accuracy
Works both for ferrous and non-ferrous metalsWorks both for ferrous and non-ferrous metals
Easy and cost-effective solutionEasy and cost-effective solution
The importance of shell Moulding?

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.