{"id":5692,"date":"2024-04-04T16:07:25","date_gmt":"2024-04-04T16:07:25","guid":{"rendered":"https:\/\/blog.infraspeak.com\/?p=5692"},"modified":"2026-04-02T18:34:59","modified_gmt":"2026-04-02T18:34:59","slug":"mttr","status":"publish","type":"post","link":"https:\/\/blog.infraspeak.com\/pt-br\/mttr\/","title":{"rendered":"O que \u00e9 o MTTR? defini\u00e7\u00e3o, c\u00e1lculo, e formas de o reduzir"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><p><span style=\"font-weight: 400;\">O MTTR e o <a href=\"https:\/\/blog.infraspeak.com\/pt-br\/o-que-mtbf\/\">MTBF<\/a> s\u00e3o dois dos indicadores de desempenho mais importantes na manuten\u00e7\u00e3o. Vamos explicar o que \u00e9 o MTTR, como calcular o MTTR e como melhor\u00e1-lo com a ajuda de um <a href=\"https:\/\/infraspeak.com\/pt-br\/solucoes\/software-cmms\">software CMMS<\/a>. No final, n\u00e3o se esque\u00e7a de baixar o nosso guia com 8 medidas concretas para reduzir a manuten\u00e7\u00e3o corretiva.<\/p>\n<h2><b>O que \u00e9 o MTTR?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">MTTR significa <\/span><i><span style=\"font-weight: 400;\">Mean Time to Repair <\/span><\/i><span style=\"font-weight: 400;\">ou, em portugu\u00eas, Tempo M\u00e9dio de Reparo. \u00c9 tamb\u00e9m conhecido como Tempo M\u00e9dio de <\/span><a href=\"https:\/\/blog.infraspeak.com\/pt-br\/manutencao-corretiva\/\"><span style=\"font-weight: 400;\">Manuten\u00e7\u00e3o Corretiva<\/span><\/a><span style=\"font-weight: 400;\">, e representa o tempo m\u00e9dio necess\u00e1rio para reparar um dano, repondo o equipamento em um estado totalmente funcional.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O MTTR \u00e9 um indicador da facilidade de manuten\u00e7\u00e3o (qu\u00e3o facilmente um equipamento pode ser consertado). Um Tempo M\u00e9dio de Reparo elevado pode indicar que a substitui\u00e7\u00e3o de um determinado ativo \u00e9 mais barata ou prefer\u00edvel \u00e0 sua repara\u00e7\u00e3o, decis\u00e3o que pode ser otimizada com um <a href=\"https:\/\/infraspeak.com\/pt-br\/plataforma\/software-gestao-de-ativos\">software gest\u00e3o de ativos<\/a>. Por outro lado, um MTTR mais baixo pode sugerir que &#8220;usar-at\u00e9-estragar&#8221; n\u00e3o \u00e9 uma op\u00e7\u00e3o ruim para esse equipamento.<\/p>\n<p>Em ambientes corporativos e industriais, um <a href=\"https:\/\/infraspeak.com\/pt-br\/solucoes\/software-gestao-facilities\">software gest\u00e3o de facilities<\/a> pode ser uma ferramenta valiosa para monitorar continuamente o MTTR de equipamentos cr\u00edticos e identificar padr\u00f5es que indiquem quando a substitui\u00e7\u00e3o se torna mais vantajosa que a repara\u00e7\u00e3o.<\/p>\n<p><span style=\"font-weight: 400;\">No entanto, um MTTR elevado pode tamb\u00e9m indicar inefici\u00eancias. Talvez esteja demorando muito tempo para tomar medidas, ou deveria armazenar mais pe\u00e7as sobressalentes para o equipamento em quest\u00e3o, o que pode ser controlado com um <a href=\"https:\/\/infraspeak.com\/pt-br\/solucoes\/software-gestao-estoque\">software gest\u00e3o de estoque<\/a>. Saber como reduzir o MTTR \u00e9 essencial para evitar ou <a href=\"https:\/\/blog.infraspeak.com\/pt-br\/tempo-de-parada-nao-planejado\/#:~:text=Tempo%20de%20parada%20n%C3%A3o%20planejado%3A%20causas%2C%20consequ%C3%AAncias%20e%20solu%C3%A7%C3%B5es,-Infraspeak%20Team&#038;text=O%20downtime%2C%20ou%20parada%20n%C3%A3o,receita%20e%20satisfa%C3%A7%C3%A3o%20do%20cliente.\">minimizar a inatividade<\/a> e os preju\u00edzos que isso pode causar ao seu neg\u00f3cio.<\/p>\n<h2><b>Como calcular o MTTR?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Para calcular o MTTR, divida o tempo total de manuten\u00e7\u00e3o corretiva durante um determinado per\u00edodo pelo n\u00famero de a\u00e7\u00f5es de manuten\u00e7\u00e3o corretiva realizadas.<\/span><\/p>\n<h3><b>Esta \u00e9 a f\u00f3rmula do MTTR:<\/b><\/h3>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-5677\" src=\"https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/MTTR_formula_pt-1.png\" alt=\"F\u00f3rmula MTTR\" width=\"1117\" height=\"236\" srcset=\"https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/MTTR_formula_pt-1.png 1117w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/MTTR_formula_pt-1-300x63.png 300w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/MTTR_formula_pt-1-768x162.png 768w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/MTTR_formula_pt-1-1024x216.png 1024w\" sizes=\"(max-width: 1117px) 100vw, 1117px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Para o c\u00e1lculo do MTTR, \u201ctempo total de manuten\u00e7\u00e3o\u201d \u00e9 o \u201ctempo total de manuten\u00e7\u00e3o corretiva\u201d, por exemplo, o tempo total gasto com manuten\u00e7\u00e3o n\u00e3o planejada. O resultado \u00e9 normalmente apresentado em horas.<\/span><\/p>\n<h3><b>Exemplo de c\u00e1lculo de MTTR<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Suponha que voc\u00ea tem uma m\u00e1quina de venda autom\u00e1tica funcionando 24\/7 cujo painel deixou de funcionar \u00e0s 16h30 e foi reparado por um t\u00e9cnico \u00e0s 20h00. Mais tarde, nessa semana, a porta ficou presa e n\u00e3o funcionou durante todo o dia. Qual \u00e9 o MTTR neste caso?<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tempo total de manuten\u00e7\u00e3o: 27.5h (3.5h durante a primeira falha; 24h durante a segunda)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00famero de repara\u00e7\u00f5es: 2<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-10544\" src=\"https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2018\/07\/Ca\u0301lculo-mTTR-EXEMPLO-e1629891049221.png\" alt=\"c\u00e1lcula mttr exemplo\" width=\"784\" height=\"184\" \/><\/p>\n<h3><b>Valor padr\u00e3o do MTTR<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Visto que o Tempo M\u00e9dio de Reparo pode variar consideravelmente de ind\u00fastria para ind\u00fastria, n\u00e3o existe um valor padronizado. No entanto, \u00e9 bom ter em mente que uma repara\u00e7\u00e3o deve ser efetuada em menos de 5 horas.<\/span><\/p>\n<h3><b>Tempo M\u00e9dio de Reparo vs Tempo M\u00e9dio de Resolu\u00e7\u00e3o<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u00c9 importante destacar que o tempo total de manuten\u00e7\u00e3o corretiva (e, portanto, o Tempo M\u00e9dio de Reparo) pode variar desde a descoberta da falha at\u00e9 ao momento real em que os trabalhos de repara\u00e7\u00e3o come\u00e7am. Isto inclui o tempo para a identifica\u00e7\u00e3o, notifica\u00e7\u00e3o, reconhecimento e diagn\u00f3stico do dano. Mas, geralmente, os prazos de entrega de pe\u00e7as ou outros tempos de paradas administrativa ou log\u00edstica (ALDT) n\u00e3o est\u00e3o inclu\u00eddos no c\u00e1lculo do MTTR.\u00a0<\/span><\/p>\n<p><b>Quando voc\u00ea incorpora estes passos, MTTR significa Tempo M\u00e9dio de Resolu\u00e7\u00e3o, Tempo M\u00e9dio de Recupera\u00e7\u00e3o ou Tempo M\u00e9dio de Restaura\u00e7\u00e3o.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Por exemplo, se estiv\u00e9ssemos falando de um sistema digital, a falha poderia ser reparada antes do servi\u00e7o ou do acesso aos dados ser totalmente restaurado a todos os usu\u00e1rios. Para evitar confus\u00f5es e erros de comunica\u00e7\u00e3o, \u00e9 importante incluir uma defini\u00e7\u00e3o expl\u00edcita de MTTR nos <a href=\"https:\/\/blog.infraspeak.com\/pt-br\/gestao-de-contratos-em-facilities-management\/\">contratos de manuten\u00e7\u00e3o.<\/a><\/span><\/p>\n<h3><b>C\u00e1lculo da disponibilidade utilizando o MTTR<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">O MTTR n\u00e3o \u00e9 apenas um indicador da capacidade de manuten\u00e7\u00e3o. Explicamos aqui como utilizar o MTTR e o <\/span><a href=\"https:\/\/blog.infraspeak.com\/pt-br\/o-que-e-mtbf\/\"><span style=\"font-weight: 400;\">Tempo M\u00e9dio entre Falhas, ou MTBF<\/span><\/a><span style=\"font-weight: 400;\">, para <\/span><a href=\"https:\/\/blog.infraspeak.com\/pt-br\/disponibilidade-confiabilidade-manutenibilidade\/\"><span style=\"font-weight: 400;\">calcular a disponibilidade<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0\u00a0<\/span><\/p>\n<h2><b>Como reduzir o MTTR<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Para reduzir o MTTR, \u00e9 preciso avaliar e tentar reduzir ambos os fatores considerados na f\u00f3rmula. Ainda que, matematicamente, a simples redu\u00e7\u00e3o do n\u00famero de repara\u00e7\u00f5es n\u00e3o resulte em uma redu\u00e7\u00e3o do MTTR em si (se o numerador se mantiver inalterado), a realidade \u00e9 que qualquer das a\u00e7\u00f5es que levem a uma diminui\u00e7\u00e3o do n\u00famero de repara\u00e7\u00f5es conduzem tamb\u00e9m a uma diminui\u00e7\u00e3o do tempo gasto em manuten\u00e7\u00e3o corretiva.<\/span><\/p>\n<h2><b>Como reduzir o tempo total de manuten\u00e7\u00e3o corretiva<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O tempo total de manuten\u00e7\u00e3o come\u00e7a apartir do minuto em que uma falha \u00e9 detectada e s\u00f3 termina quando a ordem de trabalho \u00e9 fechada.<\/span><\/p>\n<h3><b>Primeiro passo: reagir \u00e0s falhas com mais rapidez<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Comece logo no in\u00edcio. Quanto tempo passa at\u00e9 a equipe de manuten\u00e7\u00e3o ser notificada? E, depois, quanto tempo at\u00e9 que cada tarefa chegue \u00e0s m\u00e3os do t\u00e9cnico certo?<\/span><\/p>\n<p>Para empresas que prestam servi\u00e7os de manuten\u00e7\u00e3o em campo, um <a href=\"https:\/\/infraspeak.com\/pt-br\/solucoes\/software-field-service-management\">software field service management<\/a> pode ser fundamental para acelerar a comunica\u00e7\u00e3o entre equipes e garantir que o t\u00e9cnico certo chegue rapidamente ao local com as ferramentas adequadas, reduzindo significativamente o MTTR.<\/p>\n<p><span style=\"font-weight: 400;\">Se for a\u00ed que voc\u00ea est\u00e1 falhando, simplifique o processo. As equipes de manuten\u00e7\u00e3o n\u00e3o podem estar em todo do lado ao mesmo tempo. Por isso, facilite a comunica\u00e7\u00e3o de falhas para os clientes (dica imparcial: utilize o <a href=\"https:\/\/apps.apple.com\/us\/app\/infraspeak-next\/id1570335376\" target=\"_blank\" rel=\"noopener\">Infraspeak Next\u2122<\/a>). Depois (mais uma vez, dica imparcial: utilize o<a href=\"https:\/\/blog.infraspeak.com\/pt-br\/infraspeak-gear\/\"> Infraspeak Gear\u2122<\/a>) atribua a tarefa a um t\u00e9cnico.\u00a0\u00a0<\/span><\/p>\n<h3><b>Segundo passo: organizar as repara\u00e7\u00f5es<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A menos que seja o seu dia de sorte, provavelmente voc\u00ea est\u00e1 lidando com v\u00e1rias repara\u00e7\u00f5es ao mesmo tempo. \u00c9 importante organizar repara\u00e7\u00f5es de acordo com a respectiva prioridade. Se voc\u00ea n\u00e3o tiver um protocolo para atribuir prioridade, n\u00e3o \u00e9 cedo demais.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se j\u00e1 tiver um diagn\u00f3stico, n\u00e3o envie os t\u00e9cnicos sem garantir que todos os materiais e ferramentas necess\u00e1rias est\u00e3o em estoque. Parece \u00f3bvio, mas a pressa pode ser inimiga da perfei\u00e7\u00e3o. Com certeza, voc\u00ea quer evitar andar para tr\u00e1s. Veja o nosso artigo sobre como fazer uma ordem de trabalho perfeita para se certificar que os t\u00e9cnicos t\u00eam exatamente o que precisam para come\u00e7ar.<\/span><\/p>\n<p>Para uma gest\u00e3o integrada de ativos e facilities, um <a href=\"https:\/\/infraspeak.com\/pt-br\/solucoes\/software-cafm\">software CAFM<\/a> oferece funcionalidades avan\u00e7adas que permitem n\u00e3o apenas controlar o estoque de pe\u00e7as e ferramentas, mas tamb\u00e9m manter um hist\u00f3rico detalhado de repara\u00e7\u00f5es para otimizar continuamente o MTTR.<\/p>\n<p><span style=\"font-weight: 400;\"><b>\ud83d\udca1Obter um diagn\u00f3stico correto<\/b><\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">compare o que o cliente relatou com danos e ordens de trabalho anteriores;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">treine o time para fazer verifica\u00e7\u00f5es r\u00e1pidas, ou prestar assist\u00eancia remota para resolu\u00e7\u00e3o de problemas;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">se tiver ferramentas ou sensores de <a href=\"https:\/\/blog.infraspeak.com\/pt-br\/9-tecnicas-de-manutencao-com-base-na-condicao\/\">monitoramento da condi\u00e7\u00e3o<\/a>, poder\u00e1 ser poss\u00edvel fazer um diagn\u00f3stico remoto completo.<\/span><\/li>\n<\/ul>\n<h3><b>Terceiro passo: reparar ou substituir<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Um tempo de reparo muito elevado pode ser um sinal de que certos equipamentos devem ser substitu\u00eddos. Se voc\u00ea combinar o custo da repara\u00e7\u00e3o e a perda de produtividade decorrente do tempo de inatividade, n\u00e3o ser\u00e1 mais econ\u00f4mico a substitui\u00e7\u00e3o desse equipamento?<\/span><\/p>\n<h2><b>Como reduzir a manuten\u00e7\u00e3o corretiva<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Apagar v\u00e1rios fogos ao mesmo tempo nunca ajudou ningu\u00e9m. Dessa forma, se voc\u00ea pretende diminuir o n\u00famero de repara\u00e7\u00f5es com que est\u00e1 lidando simultaneamente. A redu\u00e7\u00e3o do MTTR envolve tr\u00eas fatores principais \u2013 acelerar a <a href=\"https:\/\/infraspeak.com\/pt-br\/plataforma\/analise-relatorios\" target=\"_blank\" rel=\"noopener\">elabora\u00e7\u00e3o de relat\u00f3rios<\/a>, centralizar e organizar a informa\u00e7\u00e3o e investir na manuten\u00e7\u00e3o do equipamento.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mais uma vez, o segredo pode estar dentro da sua equipe. Se um operador notar que um equipamento tem um desempenho abaixo do esperado, um t\u00e9cnico de manuten\u00e7\u00e3o deve ser chamado imediatamente. A interven\u00e7\u00e3o r\u00e1pida pode impedir uma parada completa. Em caso de emerg\u00eancia, o gestor de opera\u00e7\u00f5es t\u00e9cnicas deve estar dispon\u00edvel para dar uma resposta r\u00e1pida e para rever o protocolo com a equipe.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Quase todo equipamento requer revis\u00f5es peri\u00f3dicas (aprenda <\/span><a href=\"https:\/\/blog.infraspeak.com\/pt-br\/manutencao-preventiva\/\"><span style=\"font-weight: 400;\">tudo o que precisa saber sobre manuten\u00e7\u00e3o preventiva<\/span><\/a><span style=\"font-weight: 400;\"> no nosso guia completo). Para maquinaria pesada, a substitui\u00e7\u00e3o regular (geralmente anual) de alguns componentes mec\u00e2nicos \u00e9 muito recomendada. O que talvez voc\u00ea ainda n\u00e3o saiba \u00e9 que pode automatizar estas notifica\u00e7\u00f5es e garantir que toda manuten\u00e7\u00e3o esteja em dia <\/span><span style=\"font-weight: 400;\">utilizando<\/span><span style=\"font-weight: 400;\">\u00a0uma <\/span><a href=\"https:\/\/blog.infraspeak.com\/pt-br\/immp-plataforma-inteligente-gestao-manutencao\/\"><span style=\"font-weight: 400;\">Plataforma Inteligente de Gest\u00e3o de Manuten\u00e7\u00e3o<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p>Al\u00e9m disso, manter registros precisos e organizados do MTTR \u00e9 essencial para auditorias e conformidade regulat\u00f3ria, especialmente em ind\u00fastrias altamente regulamentadas, o que pode ser facilitado com um <a href=\"https:\/\/infraspeak.com\/pt-br\/plataforma\/conformidade\">software de compliance<\/a> integrado \u00e0 gest\u00e3o de manuten\u00e7\u00e3o.<\/p>\n<p><strong>\ud83d\udc77<\/strong> Exploramos este aspeto mais aprofundadamente no nosso manual <em>Como Evitar a Manuten\u00e7\u00e3o Corretiva<\/em>, onde indicamos <strong>8 formas concretas para reduzir o tempo m\u00e9dio de reparo.<\/strong><\/p>\n<p><a href=\"https:\/\/2767973.fs1.hubspotusercontent-na1.net\/hubfs\/2767973\/%5BBR%5D%20Reactive%20Maintenance%20Whitepaper.pdf\"><img decoding=\"async\" class=\"aligncenter wp-image-9701 size-full\" src=\"https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2019\/05\/BR-Whitepaper-Manuten\u00e7\u00e3o-Corretiva.png\" alt=\"Como evitar a manuten\u00e7\u00e3o corretiva\" width=\"1200\" height=\"628\" srcset=\"https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2019\/05\/BR-Whitepaper-Manuten\u00e7\u00e3o-Corretiva.png 1200w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2019\/05\/BR-Whitepaper-Manuten\u00e7\u00e3o-Corretiva-300x157.png 300w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2019\/05\/BR-Whitepaper-Manuten\u00e7\u00e3o-Corretiva-768x402.png 768w, https:\/\/blog.infraspeak.com\/wp-content\/uploads\/2019\/05\/BR-Whitepaper-Manuten\u00e7\u00e3o-Corretiva-1024x536.png 1024w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O Tempo M\u00e9dio de Repara\u00e7\u00e3o (MTTR) mede a manutenibilidade de equipamentos e do funcionamento das opera\u00e7\u00f5es. Saiba como calcular e reduzir esta m\u00e9trica.<\/p>\n","protected":false},"author":54,"featured_media":1660,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[366],"tags":[],"class_list":["post-5692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-manutencao"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O que \u00e9 o MTTR (Tempo M\u00e9dio de Reparo) &#8226; Infraspeak Blog<\/title>\n<meta name=\"description\" content=\"O Tempo M\u00e9dio de Reparo (MTTR) mede a manutenibilidade de equipamentos e do funcionamento das opera\u00e7\u00f5es. 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