Sand Casting Service
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Sand Casting
As a global leader in sand casting services, Dawang Metals offers a comprehensive range of high-quality sand casting solutions for stainless steel, ductile iron, gray iron, manganese steel, alloy steel and other materials. As a premier sand casting foundry, we specialize in producing both simple and complex components with precision and efficiency. Our advanced manufacturing capabilities, including automated processes and strict quality controls, allow us to deliver consistent, high-performance sand castings that meet the highest industry standards.
Sand Casting Advantages
Sand casting is very efficient for producing large parts. Sand casting has many advantages such as low production costs, high process flexibility, and easy modification and adjustment. It is the best choice for many industries such as engineering machinery industry, petroleum railroad industry and energy industry.
Strong Adaptability Great for castings of various sizes and shapes, especially for large and complex sand casting parts.
High Productivity The sand casting foundry has more than 200 workers, 5 engineers, and automated production lines
Low Cost Sand casting has the characteristic of low costs because it has shorter production period and resusable mold.
Multi-material Selection Suitable for a variety of metal materials, such as various steel, nodular cast iron, and gray cast iron.
Oversized Castings The largest casting weight of our sand casting can reach 3 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
Shell Making
Effective inject sand area: 1500*1300mm; maximum tooling mounting size: 1600*1500mm
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
Sand Casting Materials
| Material | Application | Product Feature |
|---|---|---|
| Iron | Automobile, machinery manufacturing, construction and other industries. Such as automobile engine block, cylinder head, gearbox shell and other parts. | Cast iron has good wear resistance, vibration damping and machinability, and relatively low cost, able to produce parts with complex shapes. However, its strength and toughness are relatively low and its weight is large. |
| Steel | Used in heavy machinery, engineering equipment, ships, pressure vessels and other fields that require high strength and reliability. Like the main beam of large cranes, hull structural parts, chemical equipment pressure vessels, etc.. | Cast steel has high strength, good toughness, good load carrying capacity and impact resistance, and can adapt to complex working environments and greater stress. However, the cast steel casting process is relatively complex, high cost, and relatively poor welding performance. |
| Aluminium Alloy | Aluminum alloy castings are widely used in aerospace, automobile, electronics and other fields. Aircraft parts in the aerospace field (such as wings, fuselage structural parts, etc.), engine parts in the automotive field (such as cylinder block, cylinder head), body structural parts, and the shell of the electronic equipment, etc. have aluminum alloy castings. | Aluminum alloys are low density, lightweight, have good thermal and electrical conductivity, and good corrosion resistance. Its finished products are capable of complex shape designs and the properties can be adjusted by different heat treatment processes. However, aluminum alloys have relatively low strength and limited high temperature performance. |
| Copper Alloy | Used in electric, machinery, decoration and other industries. For example, wires and cables and conductive connectors in the electrical field, slide bearings and worm gears in the machinery industry, and sculptures and handicrafts in the decorative field. | Copper alloy has good electrical conductivity, thermal conductivity and corrosion resistance, and has a certain degree of strength and toughness. Different types of copper alloys also have their own unique properties, such as brass has better processing performance and corrosion resistance, bronze has high strength and wear resistance. |
| Magnesium Alloy | There is potential for application in weight-sensitive fields such as aerospace, automotive and electronics, especially in the aerospace field. For example, some parts of airplanes, steering wheels and seat skeletons of automobiles, as well as the shells of some electronic products. | Magnesium alloy is the lightest metal structural material in practical application, characterized by low density, high specific strength and specific stiffness, which can effectively reduce the weight of products. In addition, magnesium alloy also has good shock absorption, electromagnetic shielding and recyclability. |
Why Choose Dawang for Sand Casting Service
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.
We adopt the latest equipments for resin sand casting. In 2024, we invested in tens of millions of RMB to renovate the sand casting workshop.
Quality Assurance
Dawang Casting is dedicated to high-quality production in our sand casting processes. To achieve this, we have full range of testing machineries 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 inspection methods ensure precision and reliability of each part, providing our customers with outstanding product quality and reliability.
Latest Tooling Facility
Dawang Casting excels in mold quality that is essential to quality of of sand casting products. Particularly in the production of large components, we purchase high-quality iron or aluminium molds to ensure great surface precision in the casting of large parts. We also have very precise control over the internal complex mechanisms of molds used for large castings. This allows us to stands out in the sand casting manufacturers.
Sand Castings Parts Samples
Application of Sand Casting
With sand casting, we can produce complex and large metal parts for many industries. The application of sand casting cover many key areas, including automobile, aerospace, energy fields, agriculture and construction machineries. Sand casting’s advantage is that it is ideal for the manufacture of large and complex parts, and it is relatively simple and low-cost.
Forestry Machinery
Industrial Machinery
Construction Machinery
Energy Equipment
Mining Machinery
Agricultural Machinery
Railway Transportation
Shipbuilding Industry
FAQs about Sand Casting Service
1.When is sand casting process more competitive than other casting methods?
Sand casting is more competitive when producing parts that are larger, but with complex shapes. Its mold is relatively simple and better for small batch production and rapid prototyping compared to investment casting. Additionally, sand casting is flexible that it can work with a variety of 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, there are several actions such as improving the venting performance of the sand mold, controlling fluidity and the temperature of the liquid metal, and using appropriate pouring method. Additionally, quality control like non-destructive testing of castings can detect potential internal defects.
3. How environmentally friendly is sand casting process?
Sand casting is generally a environmentally friendly casting method. Dawang stands out in this respect as we use renewable sand material as the mold, which can be reused repeatedly. Additionally, discarded sand molds can be recycled and reprocessed.
Dawang continues to take actions to minimize their impact casting waste on the environment.
4. What key factors influence 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.
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If you have any more questions about Dawang sand casting service, please contact us now.