Sand Casting Process

Dawang Steel Castings Co., Ltd. has more than 25 years of experience in the sand casting industry and provides high-quality sand casting service for you. Seeking affordable sand casting manufacturers? Do not hesitate to contact us.

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Sand Casting Manufacturer 

Dandong Dawang is a professional manufacturer dedicated to providing high quality sand casting products. Over the years, our sand casting foundry has been adhering to the core values of excellent quality, innovative technology and customer satisfaction. The largest casting weight of our sand casting can reach 2 tons.

We have advanced production equipment and a team of experienced craftsmen. Capable of meeting sand casting needs of all sizes and complexities. Whether it is small batches or large-scale production, we can provide customized solutions. Make sure your products meet the highest quality standards.

You can trust our team to provide you with excellent service and high-quality products. Our foundry always adheres to strict quality control, ensuring that each product is meticulously inspected and tested to ensure it meets the highest quality standards.


Advantages of Sand Casting

Strong Adaptability

Suitable for castings of various sizes and shapes, especially good at manufacturing large and complex parts.

High Productivity

The sand casting foundry has more than 200 workers, 5 engineers, and automated production lines

Low Cost

Engineers skillfully control costs and provide customers with the most cost-effective quotation scheme.

Multi-material Selection

Suitable for a variety of metal materials, such as steel, nodular cast iron, and gray cast iron.

Oversized Castings

The largest casting weight of our sand casting can reach 2 tons. And the sand castings have strong bearing capacity.

Wide Application

Often used in the manufacturing of large engine parts, industrial machinery parts, etc.

Sand Casting Manufacturing Process


Melting Furnace

Japan Fuji 1T * 2; Two one-ton medium-frequency induction furnaces; Monthly Output: 900T

sand casting factory

Shell Making

Effective inject sand area: 1500*1300mm; maximum tooling mounting size: 1600*1500mm

Shell Making

Shell Making

Effective inject sand area: 1000*1000mm; Maximum tooling mounting size: 1200*1200mm


Automatic Molding Line

One automatic sand molding line; Maximum tooling size: 2m x 2m; Monthly Output: 500T


Shakeout Machine

Monthly Output: 1000T


Hanging Shot Blasting Machine

Monthly Output: 1000T

Why Choose Us

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 parts with an overall dimension of 1000mm x 1000 mm and a unit weight of no more than 100Kg given our 1200mm × 1200 mm maximum tooling installation capacity.

Quality Assurance

Dawang Factory is dedicated to high-quality production in Sand Casting processes. To achieve this, we employ a variety of quality control measures, including Coordinate Measuring Machines (CMM), Magnetic Particle Testing (MT), Radiographic Testing (RT), X-ray inspection, non-destructive testing, as well as tensile strength and impact testing. These comprehensive inspection methods ensure precision and reliability in the dimensions and quality of each part, along with their performance in tensile and impact resistance, providing our customers with outstanding product quality and reliability assurance.

Latest Tooling Facility

Dawang Factory takes pride in its excellence in mold quality within the field of Sand Casting. We understand the critical role that sand casting molds play, particularly in the production of large components. We employ high-quality iron molds or aluminiumto molds ensure exceptional surface precision in the casting of large parts. We have very precise control over the internal complex mechanisms of molds used for large castings, which also addresses the needs of many customers for large and complex castings.

Sand Castings Parts Samples


Application of Sand Casting

Sand casting process is an advanced manufacturing technology. With sand casting, we can produce complex, precise metal components. The application of sand casting cover many key industries, including aerospace, automobile, medical equipment, electronic equipment and energy fields.

Sand casting advantage is that it is suitable for the manufacture of large and complex parts, and it is relatively simple and low-cost. Therefore, sand casting is one of the important casting processes for manufacturing large castings.


Forestry Machinery


Industrial Machinery


Construction Machinery


Energy Equipment


Mining Machinery


Agricultural Machinery

Railway Transportation


Shipbuilding Industry


1.When is sand casting process more competitive than other casting methods?

Sand casting is often more competitive when producing parts that are larger, have complex shapes, or require a variety of materials. Its mold manufacturing is relatively simple and suitable for small batch production and rapid prototyping. Additionally, sand casting is an adaptable method that can be used with a variety of different metal alloys.

2. How to deal with internal voids and pores in parts for sand casting manufacturers?

Internal voids and pores are common problems during the sand casting process. To reduce these defects, measures are often taken, such as improving the venting performance of the sand mold, controlling the temperature and fluidity of the liquid metal, and using appropriate pouring techniques. Additionally, quality control steps include non-destructive testing of castings to detect potential internal defects.

3. How environmentally friendly is sand casting process?

Sand casting is generally considered a relatively environmentally friendly casting method. Especially, Dawang uses renewable sand material as the mold that can be reused many times. Additionally, discarded sand molds can be recycled and reprocessed. Dawang continues to take actions to minimize their impact on the environment, as there are still environmental considerations for sand casting manufacturers in terms of the waste and wastewater treatment generated during the sand casting process.  

4. What key factors need to be paid attention to in the engineering design of sand casting process?

There are several key factors to consider when designing a sand casting project, including part geometry, material selection, mold design, cooling system design, and pouring and venting techniques. Engineers typically optimize these factors to ensure the best casting results, including dimensional accuracy, surface quality and material performance.

If you have any more questions about sand casting, please contact us now.

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