The wafer cutting process, a crucial step in the production of solar panels, requires large amounts of cutting slurry. The slurry consists of abrasive silicon carbide particles and glycol, and is quickly polluted during the cutting process by silicon dust, metal particles from the saw wire and water.
The slurry in the saw machine needs to be replaced with fresh slurry, and the exhausted slurry must be disposed of in an environmentally friendly way. This has been a headache for an industry that has environmental concerns as its main guidelines.
Metallkraft introduces a patented technology that ensures that the spent slurry is effectively recycled and that all pollutants are turned into commercially interesting products. This technology results in 100% recycling without adding any chemicals. The recycled slurry retains fully its cutting abilities, at a fraction of the cost of fresh slurry.
Metallkraft AS is headquartered in Kristiansand, Norway. It is a company that builds on years of research and development in the area of silicon and silicon carbide slurry. Its 35+ staff is highly skilled and dedicated to serving the solar industry and the environment.
Our factory in Kristiansand is currently being upgraded, and at the end of 2008 our factory in Yangzhou comes on-line. In 2010 a major Metallkraft plant in Singapore starts serving REC ScanWafer with the Metallkraft recycling services.