As explained by THORS in their article, “What Equipment and Systems Are Used in a Green Sand Foundry?“, green sand molding, also known as clay-bonded sand molding, is the most widely used method for casting molten metal into specific shapes in modern foundries. This process is crucial in manufacturing parts for industries like automotive, construction, and cookware. The use of green sand allows foundries to create durable cast metal parts, or “castings,” for various commercial applications.
A typical green sand foundry system includes several key processing stations. Sand is stored in silos, mixed in mullers with clay, water, and additives, and conditioned in aerators. Molds are then created in mold-making units before molten metal is poured into the sand molds. After the casting has cooled and solidified, it is separated from the mold in the shakeout station. To keep operations clean and efficient, dust collectors are used to filter airborne particles throughout the process. The green sand is then recycled for future castings.
In addition to the molding system, a green sand reclamation system is essential for recycling sand after casting. Reclaimed or “return” sand is processed through metal separators to remove inclusions, cooled down, and screened to separate grains by size. Dust is collected, and the sand is stored again in silos, ready for reuse in the next production cycle. These systems allow foundries to operate more efficiently by minimizing waste and reducing costs.
Click here to learn more about Plymouth Foundry’s advanced green sand casting solutions.
Article with all rights reserved, courtesy of THORS.