Both literature and manufacturing companies state that simulators for providing training in lean production to industrialemployees must be similar to the work environment. This motivated the design of Karlstad Lean Factory, which is a trainingenvironment that realistically resembles an industrial environment. It is a full-scale training facility that incorporates acombination of materials processing and assembly. Parameters such as processing times, breakdown intervals and repair typescan be set. Examples of basic and more advanced training scenarios are given. Experiences from training groups of industrialemployees are described; inhomogeneity of these groups requires some specific attention.