{"id":191,"date":"2017-05-16T09:00:01","date_gmt":"2017-05-16T09:00:01","guid":{"rendered":"http:\/\/leanked.com\/blog\/?p=191"},"modified":"2021-08-24T10:09:13","modified_gmt":"2021-08-24T09:09:13","slug":"sistema-push-e-pull","status":"publish","type":"post","link":"https:\/\/leanked.com\/blog\/sistema-push-e-pull\/","title":{"rendered":"Sistema Push e Pull"},"content":{"rendered":"<p><em><img class=\"alignright wp-image-192\" src=\"http:\/\/leanked.com\/blog\/wp-content\/uploads\/2017\/05\/pexels-photo-188710.jpeg\" alt=\"Fordismo\" width=\"500\" height=\"281\" srcset=\"https:\/\/leanked.com\/blog\/wp-content\/uploads\/2017\/05\/pexels-photo-188710.jpeg 640w, https:\/\/leanked.com\/blog\/wp-content\/uploads\/2017\/05\/pexels-photo-188710-300x169.jpeg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/>Push <\/em>e<em> pull <\/em>s\u00e3o dois sistemas de planeamento e produ\u00e7\u00e3o distintos e existem diversos autores a definir estes conceitos segundo as suas experi\u00eancias pr\u00e1ticas e simula\u00e7\u00f5es.<\/p>\n<p>Traduzindo para a l\u00edngua portuguesa, \u201c<em>pull<\/em>\u201d significa \u201cpuxar\u201c. Num processo produtivo baseado neste sistema, os componentes s\u00e3o sempre \u201cpuxados\u201d pelo pr\u00f3ximo posto, isto \u00e9, os materiais s\u00f3 passam para a pr\u00f3xima esta\u00e7\u00e3o quando houver essa necessidade (Villa &amp; Watanabe, 1993). O termo \u201c<em>push<\/em>\u201d traduz-se para \u201cempurrar\u201d. No sistema <em>push<\/em> os componentes s\u00e3o \u201cempurrados\u201d para a produ\u00e7\u00e3o mais rapidamente do que a sa\u00edda do produto acabado, o que que leva a um aumento do <em>work in process<\/em> (Kenworthy &amp; Little, 1995). Goddard e Brooks (1984) explicam de forma simplificada que o sistema <em>push<\/em> atua em antecipa\u00e7\u00e3o de uma necessidade e o sistema <em>pull<\/em> atua quando \u00e9 feito um pedido.<\/p>\n<p>Villa e Watanabe (1993) definem o sistema <em>pull<\/em> como um m\u00e9todo que tem o objetivo de assegurar uma produ\u00e7\u00e3o <em>lean<\/em>, que flua sem desperd\u00edcios. Para o sistema <em>pull<\/em> ser bem-sucedido o material em processamento deve fluir em pequenos lotes (Sundar, Balaji, &amp; Kumar, 2014). Neste sistema as opera\u00e7\u00f5es s\u00e3o preferencialmente realizadas <em>just-in-time<\/em> \u2013 produzindo apenas a quantidade necess\u00e1ria, no momento certo. O sistema <em>kanban<\/em> \u00e9 muitas vezes utilizado nesta metodologia.<\/p>\n<p>No entanto, muitas vezes s\u00e3o utilizados os dois sistemas em simult\u00e2neo (Bonney, Zhang, Head, Tien, &amp; Barson, 1999). Bonney et al. (1999) d\u00e3o o exemplo do sistema de produ\u00e7\u00e3o da Toyota no qual \u201crecorre a fluxos de informa\u00e7\u00e3o <em>push<\/em> para o ve\u00edculo e fluxos de informa\u00e7\u00e3o <em>pull<\/em> com base em <em>kanbans<\/em> para assegurar a disponibilidade de outros componentes na pista de montagem\u201d.<\/p>\n<p><strong>Refer\u00eancias:<\/strong><\/p>\n<ul>\n<li>Bonney, M. C., Zhang, Z., Head, M. a., Tien, C. C., &amp; Barson, R. J. (1999). Are push and pull systems really so different? <em>International Journal of Production Economics<\/em>, <em>59<\/em>(1).<\/li>\n<li>Goddard, W. E., &amp; Brooks, R. B. (1984). Just-in-time: a Goal for MRP II, Readings in Zero Inventory. Conference in APICS.<\/li>\n<li>Kenworthy, J., &amp; Little, D. (1995). When Push Comes to Shove is MRPII Infinite Push or Finite Pull? National Geographic Magazine.<\/li>\n<li>Sundar, R., Balaji, A. N., &amp; Kumar, R. M. S. (2014). A Review on Lean Manufacturing Implementation Techniques. <em>Procedia Engineering<\/em>, <em>97<\/em>, 1875\u20131885.<\/li>\n<li>Villa, A., &amp; Watanabe, T. (1993). Production management: Beyond the dichotomy between \u201cpush\u201d and \u201cpull\u201d <em>Computer Integrated Manufacturing Systems<\/em>, <em>6<\/em>(1).<\/li>\n<\/ul>\n<p>Patr\u00edcia Ramos<br \/>\nConsultora Leanked<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/leanked.com\/#contactos\" target=\"_blank\" rel=\"noopener noreferrer\"><input id=\"submit\" class=\"btn btn-theme triggerAnimation animated undefined visible\" type=\"submit\" value=\"Contacte-nos\" data-animate=\"bounceIn\" \/> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Push e pull s\u00e3o dois sistemas de planeamento e produ\u00e7\u00e3o distintos e existem diversos autores a definir estes conceitos segundo as suas experi\u00eancias pr\u00e1ticas e simula\u00e7\u00f5es. Traduzindo para a l\u00edngua portuguesa, \u201cpull\u201d significa \u201cpuxar\u201c.&#46;&#46;&#46;<\/p>\n","protected":false},"author":2,"featured_media":192,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.7.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sistema Push e Pull - Leanked . 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