Sand Casting

Sand Casting: The most popular

casting method for good reason

Sand casting has always been a mainstay of our operation, and we are very proud of our works. We have been working with specialized foundries in China and Vietnam for many years to produce high-quality sand castings for customers around the globe. Our extensive knowledge combined with our total commitment to quality is what makes us stand out from the crowd. 

Sand Molds | Metal Sand Casting Services | Omnidex CN
Sand molds ready for pouring molten metal
International Manufacturing | ione stop industrial engineering and manufacturing service | Omnidex
Automated Production Line
Assemble Sand casting mold | Metal Casting Services | Omnidex CN
Process of setting up a large casting Mold
Sand Casting Process_Metal Casting Services_Omnidex
Iron Molten Metal Pouring In Sand Mold
Automatical Sand casting production line
Automated Casting Production Line
Automatical Sand casting production line | Metal Casting Services | Omnidex CN
Automated Casting Production Line

Guaranteed quality with our Sand Casting products

With the help of the Internet, it is not that hard to find a foundry to make the metal parts you need. But the market is flooded with sub-standard products, and some suppliers can struggle with quality control, especially when the pressure is on and a heavy daily output is required. Castings for certain equipment may value up to millions of dollars, and any error or fault can be very costly.

Common issues:

We offer a guarantee on the quality of our castings – no porosity, no inclusions, total dimensional accuracy and all materials certified. Learn more about our Omnidex Guarantee here.

Quality Sand Casting Services

As experts in Sand Casting, we understand your concerns over casting quality. Omnidex offers more than just the manufacturing capabilities of specialized foundries and workshops. Our Engineering and Quality Control services are what really set us apart from the rest.

Issues such as shrinking defects and porosity can be prevented if the casting process is done in the right way. Here is how we ensure the quality of our sand casting products:

  1. Impeccable patterns
    Every sand casting starts with a pattern (made in wood or aluminium). Accuracy is essential at this stage as any inaccuracy in the pattern will lead to inaccurate castings. That is why all Omnidex patterns are CNC machined with specialized equipment.
  2. World-class engineering support
    All shrinkage allowances, draft angles and other factors are accurately calculated by our engineers. Placement of removable core feeds, up-risers, chill blocks are also carefully thought out to produce the perfect results.
  3. State-of-the-art simulation tests
    After all the calculations, every new design has to go through simulation tests. These tests allow our engineers to estimate the likelihood of porosity, so they can move, increase or decrease the feeds and up-risers or add chill blocks as required. We often work on complex and expensive parts, so we insist to carry out several simulations before making the final decision.
  4. Supervised by sand casting veterans
    Our process is supervised by the most experienced engineer specialists. They will take into account the metal flow in the sand mold, material cooling and many other possible issues such as uneven shrinkage or surface distortion to produce castings of the highest quality possible.
  5. Excellent pre-treatment and finishing
    Ferrous castings are pre-treated with zinc phosphate which provides a high level of corrosion protection and finished with anti-rust coatings, zinc plating, powder coatings or spray painting.
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Learn more about Sand Casting

Sand Casting is a popular casting method with a long history, dating back to the Shang Dynasty in ancient China (1600 to 1046 BC). This process is characterized by the use of sand to make the mold for casting. It is a relatively versatile process that can handle a wide range of casting sizes and shapes. It is estimated over 60% of all metal castings are produced via sand casting.

Check out our video to learn more about our sand casting process:

Pros and Cons of sand casting:



Sand Casting Materials

We offer sand casting with both ferrous and non-ferrous materials, including:

Sand Casting Tolerances

In general, sand casting does not deliver the tighter tolerances than other casting process, but in most cases the industry standards (as shown in the drop-down list below) can meet the product requirements. Please note that Omnidex is capable of casting better tolerances than these standards.

Sand Casting Tolerances Table | Omnidex CN

Our Sand Casting Products

Aluminium bracket | Sand Casting Service | Metal Casting Solution | Omnidex CN
Aluminum Bracket
Aluminium bracket | Sand Casting Service | Metal Casting Solution | Omnidex CN
Aluminum Bracket
Sand Cast Part | Sand Casting Services | Industrial manufacturing | Omnidex CN
Sand Cast Part
Machined Steel Cast Part | Metal Casting Services | Custom Sand Casting | Omnidex CN
Machined Steel Cast Part
Machined Steel Cast Part for Coal Mining | Metal Casting Services | Custom Sand Casting | Omnidex CN
Machines steel sand casting for coal mining
Sand Cast Part | Sand Casting Solutions | Industrial Manufacturing | Omenidex CN
Sand Casting Part
Cast Iron Grill | Sand Casting Solutions | Industrial Manufacturing | Omenidex CN
Cast iron grill
Cast Aluminum Grill | Sand Casting Solutions | Industrial Manufacturing | Omenidex CN
Cast Aluminum Grill
Cast Iron Pump | Sand Casting Solutions | Industrial Manufacturing | Omenidex CN
Cast Iron Pump

Sand casting as a versatile and cost-effective solution

Sand casting can be used to make a diverse range of products, ranging from smaller parts to extremely large industrial casting pieces. Examples of modern sand cast products include valves, engine blocks, pump housings, engine manifolds, bearings, gears and many more.

Omnidex Castings

You can also learn more about Omnidex casting solutions and other casting processes on this website.

We are always ready to help with your latest project.

Contact our Customer Service and let us know how we can help to catapult your next project to success.

Years In Business
Years of ISO 9001 Certification
Manufacturing Processes
Qualified Engineers
Combined Years of Expertise

Our Locations

One-stop International Manufacturing Services

China Office


United Kingdom

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