{"id":25,"date":"2017-07-11T20:32:27","date_gmt":"2017-07-11T18:32:27","guid":{"rendered":"http:\/\/overallequipmenteffectiveness.nl\/?page_id=25"},"modified":"2017-07-13T17:04:59","modified_gmt":"2017-07-13T15:04:59","slug":"wat-is-oee","status":"publish","type":"page","link":"https:\/\/overallequipmenteffectiveness.nl\/index.php\/wat-is-oee\/","title":{"rendered":"Wat is OEE?"},"content":{"rendered":"<p>Het meten van de Overall Equipment Effectiveness (OEE) hoort oorspronkelijk bij de Japanse verbetermethode Total Productive Maintenance (TPM) en gelinkt aan Lean Manufacturing. Een heel korte definitie van de Overall Equipment Effectiveness (OEE) is de verhouding tussen de hoeveelheid goede producten die een productiemiddel aflevert, en het maximaal haalbare. Om de OEE te berekenen worden een aantal factoren met elkaar vermenigvuldigd, waaronder de machinebeschikbaarheid, de machineprestatie en de kwaliteit.<\/p>\n<p>De onderstaande afbeelding geeft een schematische weergave van OEE weer:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-30 size-full\" src=\"http:\/\/overallequipmenteffectiveness.nl\/wp-content\/uploads\/2017\/07\/oee.png\" alt=\"OEE\" width=\"650\" height=\"397\" srcset=\"https:\/\/overallequipmenteffectiveness.nl\/wp-content\/uploads\/2017\/07\/oee.png 650w, https:\/\/overallequipmenteffectiveness.nl\/wp-content\/uploads\/2017\/07\/oee-300x183.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>Overall Equipment effectiveness, OEE genoemd, is een set KPI die zich op de productiviteit van machines en productielijnen richt.<\/p>\n<p>OEE meetgegevens worden vaak gebruikt als KPI binnen verbeterende methodieken als Lean Manufacturing, Six Sigma en Total Productive Maintenance.<\/p>\n<p>OEE is een percentuele indicator die aangeeft hoe een productielijn presteert ten opzichte van de meest ideale uitgangssituatie. 100% snelheid, 100% kwaliteit en 100% beschikbaarheid.<br \/>\nIn de berekening van Overall Equipment Effectiveness, wordt gerekend met drie verschillende metrics:<\/p>\n<p><strong>Availability of beschikbaarheid (Tijd)<\/strong>: Het percentage van de geplande tijd ten opzichte van de werkelijk geproduceerde tijd. Ook wel uptime genoemd<br \/>\n<strong>Performance of efficiency (Snelheid)<\/strong>: De snelheid van de machine of productielijn berekend vanuit de meest optimale snelheid<br \/>\n<strong>Quality of kwaliteit (Goede aantallen)<\/strong>: Het aantal goede producten in verhouding tot het aantal geproduceerde goederen. Vaak First Pass Yield genoemd.<\/p>\n<p><strong>Overall Equipment Effectiveness (OEE) = Availability * Performance * Quality<\/strong><\/p>\n<h2>OEE Berekening<\/h2>\n<p>Om de OEE van een productiemachine te berekenen gebruiken we het volgende voorbeeld.<br \/>\nEen productielijn heeft de volgende eigenschappen:<\/p>\n<ul>\n<li>Twee ploegen per dag van beide 8 uur<\/li>\n<li>Setup tijd: 60 minuten per shift<\/li>\n<li>Downtime: 120 minuten per shift<\/li>\n<li>Maximale snelheid: 100 producten per uur<\/li>\n<li>Gemiddelde snelheid: 70 producten per uur<\/li>\n<li>Kwaliteit: 90% goede producten<\/li>\n<\/ul>\n<h3>Availability<\/h3>\n<p>De geplande tijd (A) is in dit geval 2 shifts x 8 uur x 60 minuten= 960 minuten<br \/>\nDe downtime (B) is in dit geval 2 shifts x 60 minuten setup tijd + 2 shifts x 120 minuten downtime = 360 minuten<br \/>\nDit maakt de totaal geproduceerde tijd (B) 960 \u2013 360 = 600 minuten<\/p>\n<p>Availability = B\/A = 600 \/ 960 x 100% = 62,5%<\/p>\n<h3>Performance<\/h3>\n<p>De Performance (Efficiency) wordt in dit geval berekend aan de hand van de maximale output en de werkelijke output.<br \/>\nAandachtspunt van de berekening van de performance, is dat de maximale output ook echt de maximale output dient te zijn. Anders kan de performance boven de 100% uitkomen en dat is niet mogelijk.\u00a0Voor de berekening van de performance is het dus belangrijk om te bepalen wat de maximale snelheid van de machine is.<br \/>\nDe Maximale snelheid, en dus de doel-output (C) is in dit geval 1000 producten per uur.<br \/>\nDe gemiddelde snelheid die werkelijk wordt behaald (D) is in dit geval 700 producten per uur.<\/p>\n<p>Performance = D\/C = 700 \/ 1000 *100% = 70%<\/p>\n<h3>Quality<\/h3>\n<p>De Quality (Kwaliteit) wordt bepaald aan de hand van de werkelijke output en het aantal goede producten.<br \/>\nIn deze case is de kwaliteit al bekend, 90%.<\/p>\n<p>Quality = 90%<\/p>\n<h3>Overall Equipment Effectiveness<\/h3>\n<p>Aan de hand van bovenstaande gegevens kan nu makkelijk de OEE berekend worden.<\/p>\n<p>Overall Equipment Effectiveness = Availability * Performance * Quality<br \/>\nOEE = 62,5% * 70% * 90%<br \/>\nOEE = 39,4%<\/p>\n<h2>Verschillende berekeningen<\/h2>\n<p>Er bestaan in het geval van OEE, diverse manieren deze te berekenen. Bovenstaande berekening is een algemene manier, het kan voorkomen dat bij OEE andere factoren worden gebruikt. Hierbij moet wel worden opgemerkt dat de OEE in de berekening niet boven de 100% mag uitkomen.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Het meten van de Overall Equipment Effectiveness (OEE) hoort oorspronkelijk bij de Japanse verbetermethode Total Productive Maintenance (TPM) en gelinkt aan Lean Manufacturing. Een heel korte definitie van de Overall &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-25","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wat is OEE? - Overall Equipment Effectiveness<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/overallequipmenteffectiveness.nl\/index.php\/wat-is-oee\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wat is OEE? - Overall Equipment Effectiveness\" \/>\n<meta property=\"og:description\" content=\"Het meten van de Overall Equipment Effectiveness (OEE) hoort oorspronkelijk bij de Japanse verbetermethode Total Productive Maintenance (TPM) en gelinkt aan Lean Manufacturing. 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