Soldner Clay Mixers are still being manufactured with the same quality construction developed by founder Paul Soldner. Most Soldner mixers are still in service, even some of the earliest ones built more than 30 years ago. Every effort is made to insure this same quality in our new mixers. Soldner clay mixers are a fast and efficient way of mixing fresh clay from powder or reprocessing scrap clay into a useable consistency. There are no sharp blades or augers but rather the clay is pushed against the stationary mixing bars by a slowly rotating concrete tub.