Roasting sand (also known as pseudo-sand) is produced by repeatedly subjecting our company's high-quality silica sand to high-temperature boiling and re-burning, which fully expands the sand grains and deeply activates the surface treatment. It features highly clean sand grain surfaces, low ash content, low gas generation, and low expansion at high temperatures. This allows for significantly reduced binder addition, effectively ensuring casting dimensions and precision, and improving casting quality and yield.

Our calcined sand, produced through numerous production processes, offers high-quality products. It is widely used in the mold-making and core-making processes for car engine blocks, bearings, brake discs, and other castings, as well as in the manufacturing of coated sand. Our calcined sand is priced competitively and boasts excellent quality.