Practical Verification of a Logistic Lean Model for Small Enterprises Operating in Poland

The paper presents a Lean model designed for purposes of internal logistic and transport processes and elaborates upon its influence on the effectiveness of these processes. The paper also discusses results and conclusions of practical model verification using the Siemens Plant Simulation software. The final section provides recommendations for further actions and describes the key problems arising from the model implementation. The study has been limited to a single small-size plant, representative of the Polish metal-mechanical sector of industry, as well as to results of verification of the proposed Lean model by computer simulation without its practical implementation at any production line. The Lean model implementation has been limited to the internal transport and logistics process for groups of similar parts. Verification of the Lean model elements has been limited by capabilities of the software used. Some of the model elements could only be verified through their actual application under production conditions. A description of methodology for implementation of the Lean model that could be adapted to requirements of other companies representing the Polish metal-mechanical industry.