山川産業株式会社｜硅砂の採掘加工｜レジンコーテッドサンド｜人工砂｜リサイクル｜けい砂｜兵庫県尼崎市

Our mission is to support our customers in the casting industry by providing Japanese quality products. In order for us to deliver satisfaction-guaranteed products to customers, Yamakawa concentrates its efforts on two innovative brands, NEXAND and ESPEARL.

NEXAND is used with silica sand to reduce casting defects such as veining and deformation, which are usually caused by thermal expansion of silica sand.

ESPEARL is ball-shaped artificial sand made of Alumina, and can be repeatedly reused since it has better hardiness and durability compared to silica sand. For this reason, ESPEARL benefits not only the foundry industry, but also contributes to the preservation of natural sand resources in rapidly growing countries. Since ESPEARL has higher thermal conductivity and excellent chilling characteristics than other products, it can be used as a substitute for Zircon and Chromite.