Chemical Sand Casting

Certified top quality production in Europe and Asia


Over the years, our experienced team has proven its worth by offering the best expertise and know-how in its field

Gamarra casting solutions

your one-stop-shop

Chemical sand casting solutions; covering all the manufacturing process, from design, patterns and casting to machining and finishing

Gamarra quality

Best Quality STANDARDS

All our products and processes are submitted to the most stringent internal and external quality, safety and environmental controls

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Our corporate strategy addresses the global challenges we face; including inequality, climate, environmental degradation, prosperity and justice


We produce cast steel with an extensive range of physical properties. Offering both automatic and manual molding operations up to 300kg and max size 1100 x 1100 x 300/300 with carbon steel castings and different alloys:

Alloy Steel
Low steel
Carbon Steel

Our CHEMICAL Sand Casting Production Process

A multi-step process that produces near-net shape precision casting parts. The process begins with the creation of patterns. These are then used to create moulds that are filled with molten metal to create the part. Secondary processing, such as machining, welding or painting can also be done. The process uses different machines such as furnace, injection, blasting, tumbling, cutting, grinding, etc. The process involves mainly the following steps

1. Pattern Design​

Designing patterns is a complex process that requires very specific know-how

2. Pattern Making​

Patterns made of wood, resin (plastic) or aluminium could be used to produce during the casting

3. Molding Process

Moulds are created with sand that is pressed using the pattern to create the desired shape

4. Melting

Electrical furnaces are used to melt iron from scrap and the necessary alloys or additional components needed to achieve the desired final standard

5. Pouring and solification

Liquid steel is then poured into the moulds and left until it solidifies.

6. Shake-Out and Cutting

Once the metal has solidified and cooled down to the required temperature, the castings are removed from the sand mould by vibration. Then, each individual part is separated by knocking off or cutting

7. Shot Blasting and Finishing Processing

The parts are shot blasted to fully remove sand and oxides. The casting part is then fully customized through finishing processes: grinding, heat treatments, machining, component welding, et al

8. Testing, Packing and Delivery

Then the casting parts will be fully tested for the dimensions, surface, mechanical properties and other required tests before packing and delivery

Want to know more of CHEMICAL Sand Casting

Similar to green sand casting, with the difference that the sand contains chemical additives that make it harder, thus this process offers greater geometric stability of the moulds. Sand is bound together around a pattern, which is designed in the shape of the component to be made – the pattern is removed and molten metal is poured into the cavity. The pattern may be re-used and the sand can generally be recycled. 

 Chemically bonded sand molds are created using a wood, metal, or plastic pattern. Sand is mixed with a binder and hardener in a high-speed mixer. This sand is deposited into a box containing the pattern and all essential gating, risers and chills for pouring. This sand mixture sets hard in a few minutes and the mold is removed from the pattern. Cores for forming internal passages in the castings may be made using the same process. The molds are then closed and are ready for pouring.

sant casting
sand casting

Industries and applications for chemical sand casting

Our Chemical sand casting services are present in a wide variety of products, including high quality, top performance industrial parts. We typically serve the following industries:

Our quality assurance services and processes ensure product reliability and customer satisfaction

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