As a result of the globalization around the world, customer demands are increasing and competitors are growing, not least in the production industry. Due to this, companies are constantly forced to improve and develop their business in forms of both production and working environment. ********** is one of the worlds largest manufacturing companies, in the field of ventilation systems. The company has today identified problems with delivery times with their product ReCooler, which is a component in their ventilation system eQ Prime.

The purpose of this report has been to examine the production flow for the ReCooler and identify the potential reasons to why the lead time is so long. Once the problem areas have been identified, improvement proposals have been developed with the goal of implementing these in the production. Further, in the future being able to reduce lead times and increase delivery precision towards customers.

Many literature studies were reviewed, and the method of value stream mapping was considered appropriate for the purpose of the study. The value stream mapping generated one mapping of the current flow in the production and one of the desirable future flows. Thenceforth, a gap in between was found in which the improvement potential could be seen.

By examining the gap and areas of improvement, various improvement proposals were developed. The main focus in the proposals was changing one part of the production flow, and manufacture rotors towards a warehouse instead of producing them on demand.

The conclusion was to implement a supermarket, a production line and Kanban-cards. These improvement proposals would be resulting in shorter delivery lead times, production lead times and better delivery precision.

Keywords: Lean production, Kaizen, Value Stream Mapping, Production Flow.