The laboratory digester AU-E/20 is used for chemical, semi-chemical, thermal and bleaching pulping studies in the pulp and paper industries. Model AU/E-20 with standard lid, model TP-2027, is mainly used in small sized production lines. Model AU/E-20 with 4 individual chambers lid, model T4T-20, is mainly used for research and development (R&D). All parts in contact with pulp are made of stainless steel AISI 304 or AISI 316 (optional). Rugged construction ensures a safe and reliable operation for many years long.