{"id":4531,"date":"2026-04-07T03:35:53","date_gmt":"2026-04-07T03:35:53","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4531"},"modified":"2026-04-07T03:35:53","modified_gmt":"2026-04-07T03:35:53","slug":"wybor-typu-prowadnicy-oleju-hydraulicznego","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/pl\/hydraulic-oil-guide-type-selection\/","title":{"rendered":"Przewodnik po olejach hydraulicznych: Rodzaje, lepko\u015b\u0107 i dob\u00f3r dla hydrauliki przemys\u0142owej"},"content":{"rendered":"<header><\/header>\n<article>\n<div class=\"title-alternatives\">\n<div class=\"title-option\"><span style=\"font-size: 1.7em; font-weight: bold;\">Czym jest olej hydrauliczny?<\/span><\/div>\n<\/div>\n<section class=\"section-box\">Olej hydrauliczny, zwany r\u00f3wnie\u017c p\u0142ynem hydraulicznym, jest medium przenosz\u0105cym moc w uk\u0142adach hydraulicznych. Pompowany przez nie\u015bci\u015bliwe \u015bcie\u017cki p\u0142ynu, generuje ci\u015bnienie, kt\u00f3re przekszta\u0142ca si\u0119 w si\u0142\u0119 mechaniczn\u0105 w celu wykonania pracy. Najcz\u0119\u015bciej stosowane oleje hydrauliczne dziel\u0105 si\u0119 na trzy kategorie: oleje mineralne na bazie ropy naftowej, p\u0142yny na bazie syntetycznej i p\u0142yny na bazie wody. Ka\u017cdy typ spe\u0142nia inne wymagania operacyjne, od og\u00f3lnych zastosowa\u0144 przemys\u0142owych po zastosowania ognioodporne w ekstremalnych warunkach.<\/p>\n<figure id=\"attachment_4533\" aria-describedby=\"caption-attachment-4533\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid-300x202.jpg\" class=\"size-medium wp-image-4533 lazyload\" alt=\"mobilny olej hydrauliczny, p\u0142yn hydrauliczny do koparek\" width=\"300\" height=\"202\"><figcaption id=\"caption-attachment-4533\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-medium wp-image-4533\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid-300x202.jpg\" alt=\"mobilny olej hydrauliczny, p\u0142yn hydrauliczny do koparek\" width=\"300\" height=\"202\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/mobile-hydraulic-oil-excavator-hydraulic-fluid.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/noscript> mobilny olej hydrauliczny, p\u0142yn hydrauliczny do koparek<\/figcaption><\/figure>\n<\/section>\n<section class=\"section-box\">\n<h2>Rodzaje oleju hydraulicznego<\/h2>\n<h3>Olej hydrauliczny na bazie mineralnej<\/h3>\n<p>Olej hydrauliczny na bazie mineralnej otrzymywany jest z ropy naftowej w procesie destylacji i rafinacji. Wzbogacony dodatkami zapewniaj\u0105cymi kontrol\u0119 lepko\u015bci, ochron\u0119 przed zu\u017cyciem, odporno\u015b\u0107 na korozj\u0119 i stabilno\u015b\u0107 oksydacyjn\u0105, ten typ p\u0142ynu dominuje w zastosowaniach przemys\u0142owych ze wzgl\u0119du na stosunek koszt\u00f3w do wydajno\u015bci.<\/p>\n<p>Podstawowym ograniczeniem jest ryzyko po\u017caru. Oleje mineralne zapalaj\u0105 si\u0119 w temperaturach od 150 do 300\u00b0C, co sprawia, \u017ce nie nadaj\u0105 si\u0119 do \u015brodowisk o wysokiej temperaturze lub wysokim ci\u015bnieniu, w kt\u00f3rych przypadkowe rozpylenie mo\u017ce zetkn\u0105\u0107 si\u0119 z gor\u0105cymi powierzchniami.<\/p>\n<p>Typowe zastosowania obejmuj\u0105 <a href=\"\/industrial-hydraulic-power-unit\/\">przemys\u0142owy<\/a> prasy, wtryskarki, <a href=\"\/mobile-hydraulic-power-unit\/\">mobilny<\/a> sprz\u0119t budowlany i maszyny rolnicze, w kt\u00f3rych kontrolowane jest zagro\u017cenie po\u017carowe.<\/p>\n<figure id=\"attachment_4534\" aria-describedby=\"caption-attachment-4534\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil-300x202.jpg\" class=\"size-medium wp-image-4534 lazyload\" alt=\"Jak wybra\u0107 odpowiedni olej hydrauliczny\" width=\"300\" height=\"202\"><figcaption id=\"caption-attachment-4534\" class=\"wp-caption-text\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4534\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil-300x202.jpg\" alt=\"Jak wybra\u0107 odpowiedni olej hydrauliczny\" width=\"300\" height=\"202\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/how-to-choose-right-hydraulic-oil.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/noscript> Jak wybra\u0107 odpowiedni olej hydrauliczny<\/figcaption><\/figure>\n<h3>Syntetyczny olej hydrauliczny<\/h3>\n<p>Syntetyczny olej hydrauliczny sk\u0142ada si\u0119 z chemicznie opracowanych zwi\u0105zk\u00f3w zaprojektowanych z my\u015bl\u0105 o ekstremalnych zakresach temperatur i wyd\u0142u\u017conej \u017cywotno\u015bci. P\u0142yn ten zachowuje stabilno\u015b\u0107 lepko\u015bci od -40\u00b0C do ponad 200\u00b0C w warunkach roboczych, przewy\u017cszaj\u0105c oleje mineralne zar\u00f3wno w zimnych rozruchach, jak i w \u015brodowiskach o wysokiej temperaturze.<\/p>\n<p>Kluczowe zalety obejmuj\u0105 d\u0142u\u017csze okresy mi\u0119dzy wymianami oleju, doskona\u0142\u0105 odporno\u015b\u0107 na utlenianie i mniejsze wymagania konserwacyjne. Jednak pocz\u0105tkowy koszt jest 2-4 razy wy\u017cszy ni\u017c w przypadku alternatyw na bazie mineralnej.<\/p>\n<p>Typowe zastosowania obejmuj\u0105 lotnicze systemy hydrauliczne, sterowanie statkami morskimi, sprz\u0119t g\u00f3rniczy i wszelkie instalacje wymagaj\u0105ce wyd\u0142u\u017conych cykli konserwacji.<\/p>\n<h3>Olej hydrauliczny na bazie wody<\/h3>\n<p>P\u0142yny hydrauliczne na bazie wody obejmuj\u0105 mieszaniny wody i glikolu, emulsje typu olej w wodzie oraz emulsje typu woda w oleju. Wysoka zawarto\u015b\u0107 wody zapewnia nieod\u0142\u0105czn\u0105 odporno\u015b\u0107 na ogie\u0144, dzi\u0119ki czemu p\u0142yny te s\u0105 niezb\u0119dne w produkcji stali, odlewaniu ci\u015bnieniowym i produkcji lotniczej, gdzie nie mo\u017cna wyeliminowa\u0107 \u017ar\u00f3de\u0142 zap\u0142onu.<\/p>\n<p>Ograniczenia obejmuj\u0105 ni\u017csz\u0105 smarowno\u015b\u0107 w por\u00f3wnaniu z p\u0142ynami na bazie oleju, zmniejszon\u0105 ochron\u0119 antykorozyjn\u0105 wymagaj\u0105c\u0105 dodatkowych inhibitor\u00f3w i ograniczenia temperatury roboczej zwykle poni\u017cej 65\u00b0C. P\u0142yny wodno-glikolowe wymagaj\u0105 r\u00f3wnie\u017c weryfikacji kompatybilno\u015bci z uszczelnieniami i w\u0119\u017cami systemu.<\/p>\n<\/section>\n<section class=\"section-box\">\n<h2>Lepko\u015b\u0107 oleju hydraulicznego: Klasy ISO VG<\/h2>\n<p>Lepko\u015b\u0107 okre\u015bla, w jaki spos\u00f3b p\u0142yn opiera si\u0119 przep\u0142ywowi. Wy\u017csza lepko\u015b\u0107 oznacza g\u0119stszy p\u0142yn i wi\u0119kszy op\u00f3r ruchu. W uk\u0142adach hydraulicznych lepko\u015b\u0107 bezpo\u015brednio wp\u0142ywa na wydajno\u015b\u0107 pompy, wydajno\u015b\u0107 uszczelnienia i og\u00f3ln\u0105 reakcj\u0119 uk\u0142adu.<\/p>\n<p>System ISO Viscosity Grade (VG) klasyfikuje oleje hydrauliczne wed\u0142ug ich lepko\u015bci kinematycznej w temperaturze 40\u00b0C, mierzonej w centystokesach (cSt). Typowe klasy obejmuj\u0105:<\/p>\n<table>\n<thead>\n<tr>\n<th>ISO VG<\/th>\n<th>Lepko\u015b\u0107 przy 40\u00b0C (cSt)<\/th>\n<th>Typowe zastosowania<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>VG 22<\/td>\n<td>19.8-24.2<\/td>\n<td>Szybkie systemy niskoci\u015bnieniowe<\/td>\n<\/tr>\n<tr>\n<td>VG 32<\/td>\n<td>28.8-35.2<\/td>\n<td>Og\u00f3lna hydraulika przemys\u0142owa<\/td>\n<\/tr>\n<tr>\n<td>VG 46<\/td>\n<td>41.4-50.6<\/td>\n<td>Standardowy sprz\u0119t mobilny<\/td>\n<\/tr>\n<tr>\n<td>VG 68<\/td>\n<td>61.2-74.8<\/td>\n<td>Wytrzyma\u0142e prasy przemys\u0142owe<\/td>\n<\/tr>\n<tr>\n<td>VG 100<\/td>\n<td>90-110<\/td>\n<td>Wolno poruszaj\u0105ce si\u0119 uk\u0142ady wysokiego ci\u015bnienia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>W przypadku wi\u0119kszo\u015bci przemys\u0142owych agregat\u00f3w hydraulicznych, ISO VG 46 zapewnia najlepsz\u0105 r\u00f3wnowag\u0119 mi\u0119dzy mo\u017cliwo\u015bci\u0105 rozruchu w niskich temperaturach a stabilno\u015bci\u0105 w wysokich temperaturach. Sprz\u0119t mobilny dzia\u0142aj\u0105cy w zmiennym klimacie cz\u0119sto korzysta z VG 32 zim\u0105 i VG 46 latem.<\/p>\n<p>Wska\u017anik lepko\u015bci (VI) mierzy, jak bardzo lepko\u015b\u0107 zmienia si\u0119 wraz z temperatur\u0105. Wy\u017cszy wska\u017anik VI wskazuje na wi\u0119ksz\u0105 stabilno\u015b\u0107 przy wahaniach temperatury. P\u0142yny klasy L-V oferuj\u0105 lepszy wska\u017anik VI dla urz\u0105dze\u0144 zewn\u0119trznych nara\u017conych na sezonowe wahania temperatury.<\/p>\n<\/section>\n<section class=\"section-box\">\n<h2>Jak wybra\u0107 odpowiedni olej hydrauliczny<\/h2>\n<h3>Krok 1: Sprawd\u017a zalecenia producenta<\/h3>\n<p>Zacznij od specyfikacji producenta pompy hydraulicznej. Pompy okre\u015blaj\u0105 wymagania dotycz\u0105ce lepko\u015bci dla bezpiecznej pracy, a stosowanie zalecanej klasy zapobiega kawitacji, zatarciom i przedwczesnemu zu\u017cyciu.<\/p>\n<h3>Krok 2: Ocena zakresu temperatur pracy<\/h3>\n<p>Okre\u015bli\u0107 minimaln\u0105 i maksymaln\u0105 temperatur\u0119 systemu podczas pracy. P\u0142yny na bazie oleju najlepiej sprawdzaj\u0105 si\u0119 w uk\u0142adach o temperaturze otoczenia od -20\u00b0C do +80\u00b0C. W temperaturach poni\u017cej -20\u00b0C p\u0142yny syntetyczne lub o niskiej lepko\u015bci zapobiegaj\u0105 uszkodzeniom podczas rozruchu. Powy\u017cej +80\u00b0C otoczenia, p\u0142yn utlenia si\u0119 szybciej, wymagaj\u0105c cz\u0119stszych wymian.<\/p>\n<h3>Krok 3: Ocena \u015brodowiska zagro\u017cenia po\u017carowego<\/h3>\n<p>W \u015brodowiskach, w kt\u00f3rych p\u0142yn hydrauliczny mo\u017ce styka\u0107 si\u0119 z gor\u0105cymi powierzchniami, iskrami lub otwartym ogniem, p\u0142yny ognioodporne staj\u0105 si\u0119 obowi\u0105zkowe. Huty stali, odlewnie, serwis lotniczy i g\u00f3rnictwo podziemne zazwyczaj wymagaj\u0105 p\u0142yn\u00f3w wodno-glikolowych lub estr\u00f3w fosforanowych zgodnie z ATEX lub lokalnymi przepisami bezpiecze\u0144stwa.<\/p>\n<h3>Krok 4: Weryfikacja kompatybilno\u015bci materia\u0142\u00f3w<\/h3>\n<p>Potwierd\u017a zgodno\u015b\u0107 p\u0142ynu z uszczelkami, w\u0119\u017cami, \u0142o\u017cyskami i elementami metalowymi. Standardowe uszczelki nitrylowe (NBR) wsp\u00f3\u0142pracuj\u0105 z olejami mineralnymi, ale mog\u0105 p\u0119cznie\u0107 pod wp\u0142ywem estr\u00f3w fosforanowych. Uszczelki silikonowe wymagaj\u0105 specjalnych formu\u0142 p\u0142yn\u00f3w. Zawsze przetestuj ma\u0142\u0105 pr\u00f3bk\u0119 przed pe\u0142n\u0105 konwersj\u0105 systemu.<\/p>\n<h3>Krok 5: Obliczenie ca\u0142kowitego kosztu posiadania<\/h3>\n<p>Nale\u017cy por\u00f3wna\u0107 pocz\u0105tkow\u0105 cen\u0119 p\u0142ynu z oczekiwan\u0105 \u017cywotno\u015bci\u0105, cz\u0119stotliwo\u015bci\u0105 konserwacji i zu\u017cyciem energii. Wysokiej jako\u015bci p\u0142yn syntetyczny kosztuj\u0105cy trzy razy wi\u0119cej mo\u017ce okaza\u0107 si\u0119 ekonomiczny, je\u015bli podwoi okresy mi\u0119dzy wymianami oleju i zmniejszy liczb\u0119 wymian pompy.<\/p>\n<\/section>\n<section class=\"section-box\">\n<h2>Cz\u0119sto zadawane pytania<\/h2>\n<div class=\"faq-item\">\n<h4>Jaka jest r\u00f3\u017cnica mi\u0119dzy olejem hydraulicznym a p\u0142ynem hydraulicznym?<\/h4>\n<p>Terminy te s\u0105 cz\u0119sto u\u017cywane zamiennie, chocia\u017c \u201cp\u0142yn hydrauliczny\u201d obejmuje opcje na bazie wody i syntetyczne, podczas gdy \u201colej hydrauliczny\u201d zazwyczaj odnosi si\u0119 do produkt\u00f3w na bazie ropy naftowej. Oba pe\u0142ni\u0105 t\u0119 sam\u0105 funkcj\u0119 przenoszenia mocy w uk\u0142adach hydraulicznych.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h4>Jak cz\u0119sto nale\u017cy wymienia\u0107 olej hydrauliczny?<\/h4>\n<p>Interwa\u0142y wymiany oleju zale\u017c\u0105 od warunk\u00f3w pracy, ale og\u00f3lne wytyczne sugeruj\u0105 co 2000-5000 godzin dla olej\u00f3w mineralnych w systemach przemys\u0142owych. Oleje syntetyczne mog\u0105 wyd\u0142u\u017cy\u0107 okresy mi\u0119dzy wymianami do 5000-10 000 godzin. Testy analizy oleju zapewniaj\u0105 najdok\u0142adniejszy czas wymiany w oparciu o rzeczywiste poziomy zanieczyszczenia i wyczerpanie dodatk\u00f3w.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h4>Czy mo\u017cna miesza\u0107 r\u00f3\u017cne rodzaje oleju hydraulicznego?<\/h4>\n<p>Nie zaleca si\u0119 mieszania r\u00f3\u017cnych typ\u00f3w olej\u00f3w hydraulicznych. Zapasy bazowe i pakiety dodatk\u00f3w r\u00f3\u017cni\u0105 si\u0119 w zale\u017cno\u015bci od formulacji, potencjalnie powoduj\u0105c reakcje chemiczne, problemy z kompatybilno\u015bci\u0105 uszczelnie\u0144 i zmniejszone w\u0142a\u015bciwo\u015bci smarne. Je\u015bli konieczna jest zmiana typu oleju, wymagane jest ca\u0142kowite przep\u0142ukanie i opr\u00f3\u017cnienie uk\u0142adu.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h4>Co powoduje przegrzanie oleju hydraulicznego?<\/h4>\n<p>Najcz\u0119stsze przyczyny obejmuj\u0105 niewystarczaj\u0105c\u0105 pojemno\u015b\u0107 zbiornika, zatkane wymienniki ciep\u0142a, obej\u015bcie zaworu nadmiarowego przy wysokim ci\u015bnieniu, niew\u0142a\u015bciw\u0105 klas\u0119 lepko\u015bci powoduj\u0105c\u0105 nadmierne tarcie wewn\u0119trzne oraz napowietrzenie z powodu lu\u017anych po\u0142\u0105cze\u0144 lub uszkodzonych uszczelek. Przegrzanie przyspiesza utlenianie i szybko degraduje pakiety dodatk\u00f3w.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h4>Czy biodegradowalny olej hydrauliczny nadaje si\u0119 do wszystkich zastosowa\u0144?<\/h4>\n<p>Opcje biodegradowalne dobrze sprawdzaj\u0105 si\u0119 w obszarach wra\u017cliwych \u015brodowiskowo, takich jak le\u015bnictwo, gospodarka morska i rolnictwo. S\u0105 one jednak zazwyczaj dro\u017csze i mog\u0105 mie\u0107 ograniczony zakres temperatur. Wymagaj\u0105 r\u00f3wnie\u017c starannego doboru materia\u0142u uszczelnienia. W przypadku standardowych zastosowa\u0144 przemys\u0142owych z odpowiednim zabezpieczeniem, konwencjonalne oleje mineralne pozostaj\u0105 najbardziej op\u0142acalnym wyborem.<\/p>\n<\/div>\n<\/section>\n<section class=\"section-box\">\n<h2>Wnioski<\/h2>\n<p>Wyb\u00f3r oleju hydraulicznego wp\u0142ywa na niezawodno\u015b\u0107 systemu, koszty konserwacji i \u017cywotno\u015b\u0107 sprz\u0119tu. Rozumiej\u0105c podstawowe r\u00f3\u017cnice mi\u0119dzy p\u0142ynami mineralnymi, syntetycznymi i na bazie wody, oceniaj\u0105c wymagania dotycz\u0105ce lepko\u015bci za pomoc\u0105 systemu ISO VG i post\u0119puj\u0105c zgodnie z systematycznym procesem wyboru opartym na temperaturze, ci\u015bnieniu i czynnikach \u015brodowiskowych, in\u017cynierowie i specjali\u015bci ds. konserwacji mog\u0105 zoptymalizowa\u0107 wydajno\u015b\u0107 uk\u0142adu hydraulicznego.<\/p>\n<p>W przypadku specyficznych zastosowa\u0144 wymagaj\u0105cych zgodno\u015bci z dyrektyw\u0105 ATEX lub certyfikatu dopuszczenia do kontaktu z \u017cywno\u015bci\u0105, przed dokonaniem ostatecznego wyboru nale\u017cy skonsultowa\u0107 si\u0119 z producentem p\u0142ynu i arkuszami danych komponent\u00f3w systemu.<\/p>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>What is Hydraulic Oil? Hydraulic oil, also called hydraulic fluid, is the medium that transmits power in hydraulic systems. When [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4532,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydraulic Oil Guide: Types, Viscosity &amp; Selection for Industrial Hydraulics - Hydrath Power<\/title>\n<meta name=\"description\" content=\"Master hydraulic oil selection with this complete guide. 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