{"id":101690,"date":"2026-10-19T14:00:13","date_gmt":"2026-10-19T14:00:13","guid":{"rendered":"https:\/\/skyplanner.ai\/?p=101690"},"modified":"2026-10-19T14:02:33","modified_gmt":"2026-10-19T14:02:33","slug":"stoc-de-siguranta","status":"publish","type":"post","link":"https:\/\/skyplanner.ai\/ro\/resurse\/stoc-de-siguranta\/","title":{"rendered":"Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103"},"content":{"rendered":"<div class=\"gb-container gb-container-article01 article-main-content-container\">\n\n<h1 class=\"wp-block-heading\">Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103<\/h1>\n\n<div class=\"gb-container gb-container-article02\">\n\n<p><a href=\"\/ro\/\">Acas\u0103<\/a> &raquo; <a href=\"https:\/\/skyplanner.ai\/ro\/resurse\/\">Resurse<\/a> &raquo; Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103<\/p>\n\n\n<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><svg aria-hidden=\"true\" focusable=\"false\" data-icon=\"clock\" width=\"20\" height=\"20\" fill=\"none\" stroke=\"currentColor\" style=\"display:inline-block;vertical-align:-0.1em\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z\"><\/path><\/svg><\/span><span class=\"yoast-reading-time__spacer\" style=\"display:inline-block;width:1em\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Timp estimat de citire: <\/span><span class=\"yoast-reading-time__reading-time\">11<\/span><span class=\"yoast-reading-time__time-unit\"> minute<\/span><\/p>\n\n<\/div>\n<div class=\"gb-container gb-container-article03\">\n\n<p>Lipsa unei componente poate opri o linie de asamblare chiar dac\u0103 piesa respectiv\u0103 cost\u0103 foarte pu\u021bin. Pare firesc s\u0103 p\u0103stra\u021bi o cantitate mai mare \u00een stoc. \u00cens\u0103, dac\u0103 face\u021bi acest lucru pentru fiecare component\u0103, ajunge\u021bi repede s\u0103 bloca\u021bi bani \u00een stocuri de care s-ar putea s\u0103 nu ave\u021bi nevoie.<\/p>\n\n\n<p>Stocul de siguran\u021b\u0103 d\u0103 acestei decizii un scop mai precis: p\u0103stra\u021bi o cantitate suplimentar\u0103 pentru a acoperi incertitudinea, nu doar pentru c\u0103 reaprovizionarea este greu de coordonat. Calcula\u021bi aceast\u0103 cantitate pornind de la cererea \u0219i durata de reaprovizionare pe care le anticipa\u021bi \u00een mod realist, apoi verifica\u021bi dac\u0103 urm\u0103torul lot poate fi disponibil la momentul prev\u0103zut \u00een plan.<\/p>\n\n\n<p>C\u00e2nd reaprovizionarea se face prin produc\u021bie proprie, SkyPlanner v\u0103 ajut\u0103 la aceast\u0103 a doua verificare. Arcturus programeaz\u0103 lotul al\u0103turi de celelalte lucr\u0103ri de produc\u021bie, iar diagrama Gantt arat\u0103 c\u00e2nd este planificat\u0103 finalizarea lui. Petrece\u021bi mai pu\u021bin timp coordon\u00e2nd ordinea lucr\u0103rilor la utilaje \u0219i pute\u021bi reac\u021biona mai devreme c\u00e2nd apare riscul unei lipse de stoc.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Ce este stocul de siguran\u021b\u0103 \u00een produc\u021bie?<\/h2>\n\n\n<p>Stocul de siguran\u021b\u0103 este cantitatea suplimentar\u0103 p\u0103strat\u0103 pentru a reduce riscul lipsei de stoc cauzate de o cerere nea\u0219teptat\u0103 sau de \u00eent\u00e2rzieri la reaprovizionare. Produc\u0103torii \u00eel pot p\u0103stra sub form\u0103 de materiale achizi\u021bionate, componente comune sau produse finite, \u00een func\u021bie de etapa \u00een care disponibilitatea este important\u0103.<\/p>\n\n\n<p>Acesta se adaug\u0103 stocului necesar pentru cererea estimat\u0103 pe durata reaprovizion\u0103rii. Dac\u0103 estima\u021bi c\u0103 ve\u021bi folosi 320 de suporturi p\u00e2n\u0103 la sosirea urm\u0103torului lot, cele 320 de suporturi acoper\u0103 cererea normal\u0103. Cantitatea suplimentar\u0103 prev\u0103zut\u0103 pentru o cerere care dep\u0103\u0219e\u0219te aceast\u0103 estimare reprezint\u0103 stocul de siguran\u021b\u0103.<\/p>\n\n\n<p>O cre\u0219tere sezonier\u0103 cunoscut\u0103 trebuie inclus\u0103 \u00een planul cererii. Un lead time al furnizorului care s-a prelungit permanent trebuie inclus \u00een ipotezele de reaprovizionare. Niciuna dintre aceste situa\u021bii nu trebuie ascuns\u0103 \u00eentr-un stoc suplimentar f\u0103r\u0103 o justificare clar\u0103.<\/p>\n\n\n<p>Stocul de siguran\u021b\u0103 este destinat \u0219i consumului. Nu este neap\u0103rat o rezerv\u0103 depozitat\u0103 separat, de care nimeni nu are voie s\u0103 se ating\u0103. Consumul unei p\u0103r\u021bi din el nu \u00eenseamn\u0103, \u00een sine, c\u0103 planificarea a e\u0219uat; epuizarea lui repetat\u0103 este \u00eens\u0103 un motiv de analiz\u0103.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Stabili\u021bi ce trebuie s\u0103 protejeze stocul de siguran\u021b\u0103<\/h2>\n\n\n<p>\u00cencepe\u021bi cu un articol a c\u0103rui lips\u0103 are consecin\u021be importante. Un element de fixare ieftin, folosit \u00een multe ansambluri, poate merita mai mult\u0103 aten\u021bie dec\u00e2t o pies\u0103 scump\u0103 care poate fi \u00eenlocuit\u0103 u\u0219or.<\/p>\n\n\n<p>\u00centreba\u021bi-v\u0103 ce s-ar \u00eent\u00e2mpla dac\u0103 ar lipsi: s-ar opri o resurs\u0103 care constituie un blocaj, s-ar am\u00e2na o livrare c\u0103tre client sau s-ar putea trece la alt\u0103 opera\u021bie? Pune\u021bi aceste consecin\u021be \u00een balan\u021b\u0103 cu banii bloca\u021bi \u00een cantitatea suplimentar\u0103 \u0219i cu costurile de depozitare, deteriorare \u0219i \u00eenvechire.<\/p>\n\n\n<p>Alege\u021bi apoi punctul din flux \u00een care ve\u021bi p\u0103stra stocul. O component\u0103 comun\u0103 poate fi folosit\u0103 la mai multe produse finite, \u00een timp ce stocul de produse finite permite expedierea imediat\u0103 a unui anumit produs. Nu ad\u0103uga\u021bi automat c\u00e2te o cantitate de siguran\u021b\u0103 la fiecare nivel al listei de materiale pentru a acoperi aceea\u0219i perturbare. Stabili\u021bi ce risc acoper\u0103 fiecare stoc de siguran\u021b\u0103.<\/p>\n\n\n<p>Pentru componente, folosi\u021bi cererea aferent\u0103 punctului din flux \u00een care se p\u0103streaz\u0103 stocul. Livr\u0103rile c\u0103tre clien\u021bi nu reflect\u0103 \u00eentotdeauna necesarul de componente: loturile de produc\u021bie pot genera un alt ritm al ie\u0219irilor din stoc. Necesarul cunoscut trebuie s\u0103 stea la baza <a href=\"\/ro\/resurse\/mrp-ghid-scurt\/\">planific\u0103rii materialelor<\/a>; stocul de siguran\u021b\u0103 acoper\u0103 incertitudinea r\u0103mas\u0103.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Cum se calculeaz\u0103 stocul de siguran\u021b\u0103<\/h2>\n\n\n<p>Pentru un articol cu cerere variabil\u0103 \u0219i o durat\u0103 de reaprovizionare fix\u0103, pe care v\u0103 pute\u021bi baza, se folose\u0219te frecvent urm\u0103toarea formul\u0103:<\/p>\n\n\n<p><strong>Stoc de siguran\u021b\u0103 = z \u00d7 \u03c3d \u00d7 \u221aL<\/strong><\/p>\n\n\n<p>Unde:<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>z<\/strong> este factorul corespunz\u0103tor nivelului de serviciu pe ciclu ales.<\/li><li><strong>\u03c3d<\/strong> este abaterea standard a cererii zilnice, care m\u0103soar\u0103 c\u00e2t de mult variaz\u0103 cantit\u0103\u021bile zilnice fa\u021b\u0103 de media lor.<\/li><li><strong>L<\/strong> este lead time-ul de reaprovizionare, exprimat \u00een acela\u0219i tip de zile.<\/li><\/ul>\n\n\n<p>Acest model presupune c\u0103 cererea dintr-o zi este independent\u0103 de cea din celelalte zile \u0219i relativ stabil\u0103 \u0219i c\u0103 cererea pe durata reaprovizion\u0103rii poate fi aproximat\u0103 adecvat printr-o distribu\u021bie normal\u0103. Este un punct de plecare util pentru un consum regulat, nu o formul\u0103 universal\u0103 pentru orice articol din produc\u021bie.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Exemplu de calcul din produc\u021bie<\/h3>\n\n\n<p>Imagina\u021bi-v\u0103 o fabric\u0103 \u00een care se produce un suport de montaj comun pentru liniile proprii de asamblare. Loturile finalizate ajung \u00eentr-un depozit de componente. Cifrele de mai jos sunt orientative:<\/p>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Parametru<\/th><th>Valoare<\/th><\/tr><\/thead><tbody><tr><td>Cerere medie pe zi lucr\u0103toare<\/td><td>80 de suporturi<\/td><\/tr><tr><td>Abaterea standard a cererii zilnice<\/td><td>20 de suporturi<\/td><\/tr><tr><td>Durat\u0103 fix\u0103 de reaprovizionare p\u00e2n\u0103 c\u00e2nd stocul poate fi utilizat<\/td><td>4 zile lucr\u0103toare<\/td><\/tr><tr><td>Nivel de serviciu pe ciclu vizat<\/td><td>95%<\/td><\/tr><tr><td>Factor z corespunz\u0103tor, rotunjit<\/td><td>1,65<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>Fabrica urm\u0103re\u0219te continuu necesarul de reaprovizionare, f\u0103r\u0103 \u00eent\u00e2rzierea suplimentar\u0103 pe care ar introduce-o o verificare s\u0103pt\u0103m\u00e2nal\u0103. Fiecare lot de reaprovizionare devine disponibil integral dup\u0103 patru zile lucr\u0103toare.<\/p>\n\n\n<p>Calculul este:<\/p>\n\n\n<p><strong>Stoc de siguran\u021b\u0103 = 1,65 \u00d7 20 \u00d7 \u221a4 = 66 de suporturi<\/strong><\/p>\n\n\n<p>Cele 66 de suporturi reprezint\u0103 cantitatea care acoper\u0103 incertitudinea. Cererea estimat\u0103 pe durata reaprovizion\u0103rii se calculeaz\u0103 separat:<\/p>\n\n\n<p><strong>80 \u00d7 4 = 320 de suporturi<\/strong><\/p>\n\n\n<p>\u00cempreun\u0103, cererea estimat\u0103 \u0219i stocul de siguran\u021b\u0103 \u00eensumeaz\u0103 386 de suporturi. \u00cen acest exemplu, aceast\u0103 valoare va fi pragul de declan\u0219are a reaprovizion\u0103rii, nu m\u0103rimea urm\u0103torului lot.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Folosi\u021bi datele potrivite pentru calcul<\/h3>\n\n\n<p>Calcula\u021bi variabilitatea cererii zilnice pe baza unei serii reprezentative de cantit\u0103\u021bi zilnice, incluz\u00e2nd zilele lucr\u0103toare \u00een care cererea a fost \u00eentr-adev\u0103r zero. Folosi\u021bi abaterea standard a acestor observa\u021bii zilnice, nu o abatere standard lunar\u0103 \u00eemp\u0103r\u021bit\u0103 la num\u0103rul de zile. Verifica\u021bi dac\u0103 lipsesc tranzac\u021bii sau dac\u0103 a existat cerere neacoperit\u0103: ie\u0219irile din stoc pot p\u0103rea artificial de mici atunci c\u00e2nd lipsa componentei \u00eempiedic\u0103 utilizarea ei \u00een produc\u021bie.<\/p>\n\n\n<p>Include\u021bi schimb\u0103rile previzibile \u00een planul cererii. Dac\u0103 exist\u0103 o cre\u0219tere a consumului sau un caracter sezonier, varia\u021bia istoric\u0103 brut\u0103 poate face ca un tipar cunoscut s\u0103 fie confundat cu incertitudinea. Folosi\u021bi o metod\u0103 bazat\u0103 pe eroarea de prognoz\u0103 r\u0103mas\u0103, \u00een loc s\u0103 trata\u021bi orice abatere de la o medie veche drept aleatorie.<\/p>\n\n\n<p>M\u0103sura\u021bi durata reaprovizion\u0103rii p\u00e2n\u0103 \u00een momentul \u00een care articolul poate fi utilizat. Pentru un material achizi\u021bionat, aceasta poate include recep\u021bia \u0219i inspec\u021bia. Pentru suportul fabricat intern, include a\u0219teptarea, parcurgerea \u00eentregului flux tehnologic \u0219i transferul \u00een depozitul de componente. Timpul de func\u021bionare al utilajului, luat separat, nu reprezint\u0103 durata reaprovizion\u0103rii.<\/p>\n\n\n<p>Folosi\u021bi aceea\u0219i baz\u0103 de timp. Dac\u0103 m\u0103sura\u021bi variabilitatea zilnic\u0103 pe zile lucr\u0103toare, exprima\u021bi \u0219i lead time-ul \u00een zile lucr\u0103toare, f\u0103r\u0103 s\u0103 combina\u021bi zilele calendaristice cu cele de produc\u021bie f\u0103r\u0103 a verifica diferen\u021bele.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Dar dac\u0103 \u0219i lead time-ul variaz\u0103?<\/h3>\n\n\n<p>Modelul cu durata de patru zile nu acoper\u0103 un proces de reaprovizionare care dureaz\u0103 uneori patru zile, alteori opt. Introducerea duratei medii \u00een L nu ia \u00een calcul incertitudinea suplimentar\u0103.<\/p>\n\n\n<p>Folosi\u021bi un model care include variabilitatea lead time-ului sau analiza\u021bi cererea pe intervalele reale de reaprovizionare pentru a estima protec\u021bia necesar\u0103. Verifica\u021bi dac\u0103 perioadele aglomerate m\u0103resc at\u00e2t consumul, c\u00e2t \u0219i timpii de a\u0219teptare \u00een produc\u021bie: aceste efecte pot fi corelate, iar o formul\u0103 care presupune independen\u021ba dintre cerere \u0219i lead time poate reprezenta gre\u0219it riscul.<\/p>\n\n\n<p>\u00cen cazul unei cereri intermitente, al unor ie\u0219iri individuale foarte mari din stoc sau al unui istoric util redus, valida\u021bi o alt\u0103 metod\u0103 \u00een raport cu tiparul real al articolului. Un stoc de siguran\u021b\u0103 temporar, stabilit pe baza unor articole comparabile \u0219i a experien\u021bei opera\u021bionale, poate fi o solu\u021bie practic\u0103, cu condi\u021bia s\u0103 documenta\u021bi baza deciziei \u0219i s\u0103 o reevalua\u021bi pe m\u0103sur\u0103 ce se acumuleaz\u0103 date.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Alege\u021bi nivelul de serviciu, nu doar coeficientul<\/h2>\n\n\n<p>\u00cen acest calcul, un nivel de serviciu pe ciclu de 95% \u00eenseamn\u0103 o probabilitate de aproximativ 95% ca un ciclu de reaprovizionare s\u0103 se \u00eencheie f\u0103r\u0103 lips\u0103 de stoc, \u00een condi\u021biile ipotezelor modelului. Nu \u00eenseamn\u0103 c\u0103 95% din unit\u0103\u021bi sunt furnizate imediat sau c\u0103 95% din comenzile clien\u021bilor ajung la timp.<\/p>\n\n\n<p>Ponderea unit\u0103\u021bilor cerute care sunt furnizate direct din stoc reprezint\u0103 rata de satisfacere a cererii din stoc. At\u00e2t un deficit mic, c\u00e2t \u0219i unul mare pot fi \u00eenregistrate drept un singur ciclu cu lips\u0103 de stoc, de\u0219i efectele lor asupra acestei rate \u0219i asupra produc\u021biei pot fi foarte diferite.<\/p>\n\n\n<p>Alege\u021bi \u021binta \u00een func\u021bie de consecin\u021bele lipsei de stoc \u0219i de costul men\u021binerii stocului de siguran\u021b\u0103. Nu stabili\u021bi o \u021bint\u0103 sc\u0103zut\u0103 pentru fiecare articol ieftin doar pentru c\u0103 valoarea lui \u00een stoc este mic\u0103.<\/p>\n\n\n<p>Pentru acela\u0219i suport, cre\u0219terea nivelului de serviciu pe ciclu vizat la 99% presupune folosirea unui factor z rotunjit de 2,33:<\/p>\n\n\n<p><strong>2,33 \u00d7 20 \u00d7 \u221a4 = 93,2 suporturi, rotunjit \u00een sus la 94<\/strong><\/p>\n\n\n<p>A\u0219adar, alege\u021bi \u00eentre p\u0103strarea a 66 de suporturi suplimentare \u0219i p\u0103strarea a 94, pentru niveluri diferite de protec\u021bie. Aceasta nu este o recomandare ca fiecare articol s\u0103 aib\u0103 un nivel de serviciu de 99%. Evalua\u021bi dac\u0103 protec\u021bia suplimentar\u0103 justific\u0103 investi\u021bia \u00een stoc.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Stocul de siguran\u021b\u0103, pragul de reaprovizionare \u0219i m\u0103rimea lotului sunt decizii distincte<\/h2>\n\n\n<p>Aceste cantit\u0103\u021bi r\u0103spund unor \u00eentreb\u0103ri diferite:<\/p>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Decizie<\/th><th>Ce stabile\u0219te<\/th><th>Exemplul suportului<\/th><\/tr><\/thead><tbody><tr><td>Stoc de siguran\u021b\u0103<\/td><td>Cantitatea suplimentar\u0103 pentru acoperirea incertitudinii<\/td><td>66 de suporturi<\/td><\/tr><tr><td>Prag de reaprovizionare<\/td><td>Momentul declan\u0219\u0103rii reaprovizion\u0103rii<\/td><td>O pozi\u021bie a stocului de 386 de console de montaj<\/td><\/tr><tr><td>M\u0103rimea lotului<\/td><td>Ce cantitate se reaprovizioneaz\u0103<\/td><td>Un lot de 400 de console de montaj, ales ca exemplu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>Pentru politica de monitorizare continu\u0103 a stocului folosit\u0103 aici:<\/p>\n\n\n<p><strong>Prag de reaprovizionare = cererea estimat\u0103 pe durata reaprovizion\u0103rii + stocul de siguran\u021b\u0103<\/strong><\/p>\n\n\n<p><strong>Prag de reaprovizionare = 320 + 66 = 386 de console de montaj<\/strong><\/p>\n\n\n<p>Folosi\u021bi pozi\u021bia stocului pentru a declan\u0219a reaprovizionarea: stocul disponibil \u0219i utilizabil plus cantit\u0103\u021bile de reaprovizionat deja comandate, minus cererea neonorat\u0103 sau cantit\u0103\u021bile deja alocate, conform regulilor de eviden\u021b\u0103 a stocurilor. Evita\u021bi s\u0103 sc\u0103de\u021bi de dou\u0103 ori aceea\u0219i cantitate angajat\u0103. Dac\u0103 v\u0103 uita\u021bi doar la stocul fizic din magazie, pute\u021bi lansa un nou lot chiar dac\u0103 exist\u0103 deja comenzi de reaprovizionare suficiente.<\/p>\n\n\n<p>Cantit\u0103\u021bile comandate nu pot \u00eens\u0103 alimenta asamblarea \u00eenainte de a fi recep\u021bionate. Ele pot \u00eempiedica dublarea comenzilor, de\u0219i data de recep\u021bie planificat\u0103 poate fi prea t\u00e2rzie pentru a evita o lips\u0103 de stoc. Verifica\u021bi \u00eempreun\u0103 at\u00e2t cantit\u0103\u021bile, c\u00e2t \u0219i disponibilitatea lor \u00een timp.<\/p>\n\n\n<p>Alegerea lotului de 400 de console de montaj este o decizie de produc\u021bie separat\u0103, influen\u021bat\u0103 de preg\u0103tirea utilajelor, manipulare \u0219i capacitate. Cantitatea minim\u0103 de produc\u021bie reprezint\u0103 limita inferioar\u0103 a m\u0103rimii lotului, nu nivelul-\u021bint\u0103 al stocului de siguran\u021b\u0103. M\u0103rirea lotului poate cre\u0219te stocul mediu f\u0103r\u0103 s\u0103 corecteze cantitatea prev\u0103zut\u0103 pentru incertitudine.<\/p>\n\n\n<p>Dac\u0103 necesarul de reaprovizionare este verificat doar periodic, protec\u021bia trebuie s\u0103 acopere \u0219i timpul de a\u0219teptare p\u00e2n\u0103 la urm\u0103toarea verificare. Nu aplica\u021bi f\u0103r\u0103 modific\u0103ri calculul pentru cele patru zile cu monitorizare continu\u0103 unei politici de verificare s\u0103pt\u0103m\u00e2nal\u0103. Trebuie analizate \u0219i retragerile mari care coboar\u0103 stocul sub prag dintr-o singur\u0103 mi\u0219care, \u00een loc s\u0103 presupune\u021bi c\u0103 reaprovizionarea \u00eencepe exact la 386.<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u00cenainte de a m\u0103ri stocul de siguran\u021b\u0103, afla\u021bi de ce s-a epuizat<\/h2>\n\n\n<p>S\u0103 presupunem c\u0103 finalizarea lotului de console de montaj este deja programat\u0103 cu dou\u0103 zile lucr\u0103toare mai t\u00e2rziu dec\u00e2t prevede politica de reaprovizionare. La consumul mediu, pentru aceste dou\u0103 zile sunt necesare \u00eenc\u0103 <strong>80 \u00d7 2 = 160 de console de montaj<\/strong>. Stocul de siguran\u021b\u0103 de 66 de console, destinat varia\u021biilor cererii, nu a fost dimensionat pentru a acoperi aceast\u0103 \u00eent\u00e2rziere cunoscut\u0103.<\/p>\n\n\n<p>O lips\u0103 imediat\u0103 de stoc poate necesita totu\u0219i o aprovizionare de urgen\u021b\u0103 sau un stoc suplimentar temporar. Dar simpla majorare a stocului de siguran\u021b\u0103 permanent nu rezolv\u0103 cauza care \u021bine de programarea produc\u021biei.<\/p>\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Ce observa\u021bi<\/th><th>Ce trebuie verificat sau schimbat<\/th><\/tr><\/thead><tbody><tr><td>Cererea neprev\u0103zut\u0103 dep\u0103\u0219e\u0219te \u00een mod repetat intervalul planificat<\/td><td>Reevalua\u021bi variabilitatea, ipotezele privind cererea \u0219i nivelul de serviciu vizat.<\/td><\/tr><tr><td>Reaprovizionarea obi\u0219nuit\u0103 dureaz\u0103 acum mai mult<\/td><td>Actualiza\u021bi cererea estimat\u0103 pe durata lead time-ului \u0219i recalcula\u021bi stocul de siguran\u021b\u0103 pentru noua perioad\u0103 de protec\u021bie.<\/td><\/tr><tr><td>Se vede deja c\u0103 un lot existent va \u00eent\u00e2rzia din cauza a\u0219tept\u0103rii la utilaj<\/td><td>Rezolva\u021bi conflictul de capacitate, materiale sau priorit\u0103\u021bi \u0219i verifica\u021bi efectul asupra celorlalte opera\u021bii.<\/td><\/tr><tr><td>Stocul apare \u00een eviden\u021be, dar nu poate fi g\u0103sit sau utilizat<\/td><td>Corecta\u021bi soldurile, rezerv\u0103rile sau statutul de calitate \u00eenainte de a modifica nivelul-\u021bint\u0103.<\/td><\/tr><tr><td>Pierderile din produc\u021bie duc la un consum de materiale mai mare dec\u00e2t cel planificat<\/td><td>Corecta\u021bi cantitatea prev\u0103zut\u0103 pentru consum \u0219i investiga\u021bi procesul; face\u021bi distinc\u021bia \u00eentre pierderile a\u0219teptate \u0219i incertitudine.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>Mai multe cauze pot ap\u0103rea simultan. O programare mai bun\u0103 nu elimin\u0103 incertitudinea real\u0103 legat\u0103 de furnizori, iar un stoc de siguran\u021b\u0103 mai mare nu creeaz\u0103 capacitatea de produc\u021bie care lipse\u0219te. \u00centrebarea util\u0103 este ce m\u0103sur\u0103 rezolv\u0103 lipsa de stoc cu care v\u0103 confrunta\u021bi efectiv.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Stabili\u021bi o dat\u0103 de reaprovizionare realist\u0103 cu SkyPlanner<\/h2>\n\n\n<p>Dup\u0103 ce a\u021bi stabilit cantitatea de reaprovizionat, SkyPlanner APS v\u0103 ajut\u0103 s\u0103 o transforma\u021bi \u00een opera\u021bii de produc\u021bie care pot fi programate al\u0103turi de comenzile clien\u021bilor. \u00cen loc s\u0103 p\u0103stra\u021bi o list\u0103 separat\u0103 de comenzi pentru reaprovizionarea stocului \u0219i s\u0103 o corela\u021bi manual cu restul produc\u021biei, <a href=\"https:\/\/skyplanner.ai\/ro\/resurse\/ce-este-programarea-productiei\/\">programa\u021bi lotul \u00een acela\u0219i plan<\/a> cu celelalte opera\u021bii executate pe utilajele dumneavoastr\u0103.<\/p>\n\n\n<p>Arcturus calculeaz\u0103 programul pe baza posturilor de lucru, schimburilor, duratelor opera\u021biilor, dependen\u021belor \u0219i priorit\u0103\u021bilor configurate. Diagrama Gantt arat\u0103 fluxul tehnologic al lotului \u0219i data planificat\u0103 de finalizare. Pute\u021bi vedea dac\u0103 lotul de console de montaj este finalizat \u00eenainte ca asamblarea s\u0103 aib\u0103 nevoie de el, \u00een loc s\u0103 considera\u021bi o comand\u0103 de produc\u021bie deschis\u0103 drept stoc disponibil.<\/p>\n\n\n<p>Dac\u0103 o comand\u0103 urgent\u0103 a unui client decaleaz\u0103 lotul, dumneavoastr\u0103 stabili\u021bi priorit\u0103\u021bile. Arcturus recalculeaz\u0103 succesiunea, iar dumneavoastr\u0103 verifica\u021bi programarea opera\u021biilor afectate. C\u00e2nd este activat\u0103 programarea care \u021bine cont de materiale, disponibilitatea acestora influen\u021beaz\u0103 \u0219i ea momentul \u00een care pot \u00eencepe opera\u021biile. Autopilot poate actualiza planul la evenimentele configurate sau la intervalele stabilite, p\u0103str\u00e2nd regulile \u0219i bloc\u0103rile definite de dumneavoastr\u0103.<\/p>\n\n\n<p>Acesta este un motiv practic pentru a alege SkyPlanner: mai pu\u021bin\u0103 coordonare manual\u0103 \u00eentre comenzile care concureaz\u0103 pentru acelea\u0219i resurse \u0219i identificarea mai devreme a \u00eent\u00e2rzierilor de reaprovizionare, c\u00e2t \u00eenc\u0103 mai ave\u021bi timp s\u0103 modifica\u021bi planul.<\/p>\n\n\n<p>P\u0103stra\u021bi distincte politica privind stocul de siguran\u021b\u0103 \u0219i programarea produc\u021biei. Alerta de stoc sc\u0103zut din SkyPlanner v\u0103 poate semnala c\u0103 trebuie s\u0103 crea\u021bi o comand\u0103 de reaprovizionare; nu creeaz\u0103 automat comenzi la atingerea unui anumit nivel al stocului. Calculul de mai sus stabile\u0219te cantitatea necesar\u0103 ca stoc de siguran\u021b\u0103. Arcturus se ocup\u0103 de programarea opera\u021biilor pe care le crea\u021bi sau le importa\u021bi prin integrare.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Ce a schimbat o coordonare mai bun\u0103 la Piristeel<\/h3>\n\n\n<p>Piristeel, produc\u0103tor de sisteme de siguran\u021b\u0103 pentru acoperi\u0219uri \u0219i de sisteme pluviale, se baza anterior pe loturi mari de produc\u021bie \u0219i stocuri tampon, cu o vizibilitate limitat\u0103 \u00eentre departamente. \u00cen <a href=\"https:\/\/skyplanner.ai\/ro\/povesti-ale-clientilor\/piristeel\/\">relatarea despre experien\u021ba sa cu SkyPlanner<\/a>, compania descrie utilizarea unei diagrame Gantt comune pentru \u00eentreaga produc\u021bie \u0219i o coordonare mai bun\u0103 a loturilor mici. Stocurile tampon mari nu mai erau o condi\u021bie necesar\u0103 pentru desf\u0103\u0219urarea f\u0103r\u0103 probleme a activit\u0103\u021bii.<\/p>\n\n\n<p>Aceast\u0103 experien\u021b\u0103 ilustreaz\u0103 valoarea unui plan vizibil \u0219i coordonat. Nu este vorba pur \u0219i simplu despre reducerea fiec\u0103rui stoc tampon, ci despre evitarea stocurilor suplimentare men\u021binute doar pentru c\u0103 programul de produc\u021bie este greu de gestionat.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Analiza\u021bi \u00eempreun\u0103 stocul de siguran\u021b\u0103 \u0219i planul de reaprovizionare<\/h2>\n\n\n<p>Pentru primul articol analizat, nota\u021bi datele folosite pentru estimarea cererii, durata reaprovizion\u0103rii p\u00e2n\u0103 c\u00e2nd stocul devine utilizabil, nivelul de serviciu vizat, stocul de siguran\u021b\u0103 calculat, politica de reaprovizionare \u0219i m\u0103rimea lotului. Confrunta\u021bi politica aleas\u0103 cu lipsurile de stoc ap\u0103rute ulterior \u0219i cu rezultatele reale ale reaprovizion\u0103rii. Revizui\u021bi-o c\u00e2nd se schimb\u0103 cererea, fiabilitatea aprovizion\u0103rii, lead time-ul sau consecin\u021bele unei lipse de stoc; un singur ciclu f\u0103r\u0103 probleme nu este o dovad\u0103 suficient\u0103 c\u0103 stocul de siguran\u021b\u0103 este prea mare.<\/p>\n\n\n<p>P\u0103stra\u021bi un stoc de siguran\u021b\u0103 justificat de incertitudinea real\u0103. Folosi\u021bi SkyPlanner pentru a face vizibil\u0103 data planificat\u0103 de reaprovizionare \u0219i pentru a coordona opera\u021biile care concureaz\u0103 pentru acelea\u0219i resurse de produc\u021bie. SkyPlanner se integreaz\u0103 cu orice ERP sau MES prin interfa\u021ba sa deschis\u0103 REST API, astfel \u00eenc\u00e2t s\u0103 pute\u021bi \u00eembun\u0103t\u0103\u021bi programarea produc\u021biei folosind \u00een continuare sistemul existent.<\/p>\n\n\n<p><a href=\"https:\/\/skyplanner.ai\/ro\/contact-vanzari\/\">Programa\u021bi o demonstra\u021bie SkyPlanner<\/a> pornind de la un articol pe care \u00eel reaproviziona\u021bi \u0219i o comand\u0103 urgent\u0103 care i-a decalat recent lotul. Vede\u021bi cum planul comun schimb\u0103 data de finalizare \u0219i op\u021biunile pe care le are planificatorul dumneavoastr\u0103. Dac\u0103 prefera\u021bi s\u0103 explora\u021bi mai \u00eent\u00e2i, <a href=\"https:\/\/skyplanner.ai\/ro\/proba\/\">\u00eencerca\u021bi SkyPlanner cu date demonstrative<\/a>.<\/p>\n\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103 Acas\u0103 &raquo; Resurse &raquo; Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103 Lipsa unei componente poate opri o linie de asamblare chiar dac\u0103 piesa respectiv\u0103 cost\u0103 foarte pu\u021bin. Pare firesc s\u0103 p\u0103stra\u021bi o cantitate mai mare \u00een stoc. \u00cens\u0103, dac\u0103 face\u021bi acest lucru pentru fiecare component\u0103, ajunge\u021bi &#8230; <a title=\"Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103\" class=\"read-more\" href=\"https:\/\/skyplanner.ai\/ro\/resurse\/stoc-de-siguranta\/\" aria-label=\"Read more about Stocul de siguran\u021b\u0103 \u00een produc\u021bie: calcula\u021bi cantitatea necesar\u0103\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":101692,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[2537,514],"tags":[],"class_list":["post-101690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aps-si-programare","category-resurse","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Stoc de siguran\u021b\u0103 \u00een produc\u021bie: calcul \u0219i exemplu<\/title>\n<meta name=\"description\" content=\"Calcula\u021bi stocul de siguran\u021b\u0103 f\u0103r\u0103 a-l confunda cu pragul de reaprovizionare. 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