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Extension of the Lean 5S Methodology to 6S with An Additional Layer to Ensure Occupational Safety and Health Levels

1
Department of Mechanical Engineering, Technical School of Engineering—ICAI, Comillas Pontifical University, 25, 28015 Madrid, Spain
2
Design Engineering Area, Industrial Engineering School, National Distance Education University (UNED), 38, 28015 Madrid, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(14), 3827; https://doi.org/10.3390/su11143827
Received: 12 June 2019 / Revised: 10 July 2019 / Accepted: 11 July 2019 / Published: 12 July 2019
(This article belongs to the Special Issue Safety and Security Issues in Industrial Parks)
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Abstract

This paper proposes an expansion of the Lean 5S methodology, which includes the concept of Safety–Security as 6S. Implementation was done by a standardized process tested in a pilot area that is part of the Integrated Industrial Manufacturing System Laboratory at the Higher Technical School of Engineering (ICAI). The additional 6S phase (Safety-Security) thoroughly reviews all areas of an industrial plant by analyzing the risks at each workstation, which let employees be fitted out with protection resources depending on each of their personal characteristics and to guarantee the safety of the workstation by strictly complying with occupational safety and health and machinery use standards, which must hold a CE certificate of compliance. The main objective was to increase the scope of 5S methodology to respond to the occupational safety and health needs for machines required in optimizing production processes. It is important to remember that companies must guarantee that their employees use personal protection equipment (PPE) at their work posts or stations that protect them properly from risks to their health and safety and that cannot be prevented or sufficiently limited by using collective means of protection or by adopting work organization measures. The industrial resources employed in the pilot area chosen for 6S implementation were a sheet metal deformation and cutting line comprised of a punch press, feeder, and winder, as well as a conventional machine tool with minimum safety specifications and without CE certification. Until now, there had been no plans to implement a 6S tool in this laboratory. However, given that the existing safety risk to operators is high, the implementation has led to obtaining optimal results, which justify the success of the 6S methodology proposal. In short, it lets us advance towards the zero accident target. View Full-Text
Keywords: lean manufacturing; 6s; PDCA; safety (security); CE certification lean manufacturing; 6s; PDCA; safety (security); CE certification
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Jiménez, M.; Romero, L.; Fernández, J.; Espinosa, M.M.; Domínguez, M. Extension of the Lean 5S Methodology to 6S with An Additional Layer to Ensure Occupational Safety and Health Levels. Sustainability 2019, 11, 3827.

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