{"id":2709,"date":"2025-05-20T11:30:23","date_gmt":"2025-05-20T03:30:23","guid":{"rendered":"https:\/\/baldor-air.com\/?p=2709"},"modified":"2025-05-20T11:30:24","modified_gmt":"2025-05-20T03:30:24","slug":"why-is-your-screw-air-compressor-consuming-too-much-lubricating-oil","status":"publish","type":"post","link":"https:\/\/baldor-air.com\/ja\/why-is-your-screw-air-compressor-consuming-too-much-lubricating-oil\/","title":{"rendered":"\u30b9\u30af\u30ea\u30e5\u30fc\u30fb\u30a8\u30a2\u30fb\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u306e\u6f64\u6ed1\u6cb9\u6d88\u8cbb\u91cf\u304c\u591a\u3059\u304e\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>Excessive oil consumption in screw air compressors is a common and concerning issue. Not only can it contaminate downstream equipment like <strong>air dryers<\/strong> \u305d\u3057\u3066 <strong>precision filters<\/strong>, but it also affects product quality and can damage production equipment. Understanding the root causes of high oil consumption is essential for effective maintenance and operation.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"697\" height=\"561\" src=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GA24P-H3C.jpg\" alt=\"15d94ga24p h3c\" class=\"wp-image-2713\" srcset=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GA24P-H3C.jpg 697w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GA24P-H3C-300x241.jpg 300w\" sizes=\"(max-width: 697px) 100vw, 697px\" \/><\/figure><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">1. Main Cause: Oil Separator Malfunction<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>\u3067 <strong><a href=\"https:\/\/baldor-air.com\/ja\/%e7%b5%a6%e6%b2%b9%e5%bc%8f%e3%82%a8%e3%82%a2%e3%82%b3%e3%83%b3%e3%83%97%e3%83%ac%e3%83%83%e3%82%b5%e3%83%bc\/\">oil-injected screw compressors<\/a><\/strong>, large volumes of lubricating oil are injected during the compression process to reduce temperature and friction. This creates an <strong>oil-air mixture<\/strong>, which is then routed through the <strong>oil separator<\/strong>. The purpose of this separator is to extract oil from compressed air before discharge.<\/p>\n\n\n\n<p>\u3082\u3057 <strong>oil separator element<\/strong> fails, the oil separation efficiency drops, leading to <strong>oil carryover<\/strong>, which increases oil consumption and potentially damages equipment.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u26a0\ufe0f <strong>Industry Standard:<\/strong> After separation, the oil content in compressed air should not exceed <strong>3 ppm<\/strong>. Anything higher is considered excessive oil consumption or \u201coil carryover.\u201d<\/p>\n<\/blockquote>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"521\" height=\"292\" src=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GAPI0-U347.jpg\" alt=\"15d94gapi0 u347\" class=\"wp-image-2714\" style=\"width:806px;height:auto\" srcset=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GAPI0-U347.jpg 521w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/15D94GAPI0-U347-300x168.jpg 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><\/figure><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">2. Common Oil Separator Failures and Their Impact<\/h3>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">a. <strong>Clogged Oil Separator Element<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symptoms:<\/strong> High motor current, increased pressure, potential motor overload.<\/li>\n\n\n\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong> Prolonged use without replacement, poor air quality.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Monitor pressure differential; replace the element when the pressure difference reaches <strong>0.08 MPa<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">b. <strong>Damaged Oil Separator Element<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symptoms:<\/strong> Severe oil consumption, visible oil in air tanks and pipelines.<\/li>\n\n\n\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>Delayed replacement<\/li>\n\n\n\n<li>Low-quality separator elements<\/li>\n\n\n\n<li>Improper installation damaging the element<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Replace with high-quality components and follow proper installation procedures.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">c. <strong>Burnt Oil Separator Element<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symptoms:<\/strong> Carbonized filter mesh, burnt separator casing.<\/li>\n\n\n\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>Poor-quality lubricant or separator element<\/li>\n\n\n\n<li>Lack of proper grounding, causing static ignition<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Use quality lubricants and ensure grounding during installation.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">d. <strong>Poor Separation Efficiency<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symptoms:<\/strong> High oil content in compressed air damaging downstream equipment.<\/li>\n\n\n\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong> Low-quality separator elements or installation errors.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Replace with certified separator elements and follow proper assembly steps.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">3. Additional Causes of High Oil Consumption<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Even if the oil separator is functioning properly, the following issues can also lead to excessive oil use:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">a. <strong>Minimum Pressure Valve Failure<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Causes low internal pressure during startup, increasing oil mist velocity and separator load.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Inspect and replace the <strong>minimum pressure valve<\/strong> if leakage or premature opening occurs.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">b. <strong>Use of Low-Quality Lubricating Oil<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> At high temperatures, low-grade oil forms smaller particles (&lt;0.01\u03bcm) that separators can\u2019t capture.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> \u9078\u3076 <strong>premium lubricants<\/strong> and control operating temperatures.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">c. <strong>Poorly Designed Oil-Air Separator Tank<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Ineffective initial separation, high oil mist concentration before reaching the separator.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Upgrade to a well-designed tank or consult the manufacturer for design improvements.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">d. <strong>Overfilling Lubricating Oil<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Excess oil is carried away with compressed air.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> After shutdown and pressure release, drain to the correct oil level.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">e. <strong>Faulty Oil Return Check Valve<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Backflow of oil into the separator during shutdown, causing oil to be expelled with air during next startup.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Clean or replace the check valve to restore proper one-way flow.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">f. <strong>Improper Oil Return Pipe Installation<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Oil fails to return to the compressor head and gets carried away with the air.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Adjust pipe depth to 1\u20132 mm from the oil separator bottom with a slanted tip.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">g. <strong>High Air Demand \/ Low Operating Pressure<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Continuous high-load operation below rated pressure increases oil mist flow and separator burden.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Use a <strong>separator suited for low-pressure applications<\/strong>, or balance air demand and supply.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">h. <strong>Clogged Oil Return Line<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Effect:<\/strong> Blockages prevent oil return, causing it to be carried away with air.<\/li>\n\n\n\n<li><strong>Solution:<\/strong> Fully disassemble and clean the oil return line, check valve, and filter.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">\u6700\u7d42\u7684\u306a\u611f\u60f3<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>If you&#8217;re experiencing unexplained oil consumption in your <strong><a href=\"https:\/\/baldor-air.com\/ja\/%e3%82%aa%e3%82%a4%e3%83%ab%e3%83%95%e3%83%aa%e3%83%bc%e3%82%b9%e3%82%af%e3%83%aa%e3%83%a5%e3%83%bc%e3%82%a8%e3%82%a2%e3%82%b3%e3%83%b3%e3%83%97%e3%83%ac%e3%83%83%e3%82%b5%e3%83%bc\/\">\u30b9\u30af\u30ea\u30e5\u30fc\u30a8\u30a2\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc<\/a><\/strong>, consider not just the oil separator element but the <strong>entire oil circuit and air system design<\/strong>. Regular maintenance, proper installation, and the use of <strong>high-quality components<\/strong> are essential to minimizing oil loss and maximizing equipment lifespan.<\/p>\n\n\n\n<p>For more expert tips on maintaining your compressor system, visit our <a href=\"https:\/\/baldor-air.com\/ja\/%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\/\"><strong>Maintenance &amp; Troubleshooting<\/strong> <\/a>section.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u30b9\u30af\u30ea\u30e5\u30fc\u30a8\u30a2\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u306e\u904e\u5270\u306a\u30aa\u30a4\u30eb\u6d88\u8cbb\u306f\u3001\u4e00\u822c\u7684\u304b\u3064\u61f8\u5ff5\u3055\u308c\u308b\u554f\u984c\u3067\u3059\u3002\u30aa\u30a4\u30eb\u6d88\u8cbb\u306f\u3001\u30a8\u30a2\u30c9\u30e9\u30a4\u30e4\u3084\u7cbe\u5bc6\u30d5\u30a3\u30eb\u30bf\u306e\u3088\u3046\u306a\u4e0b\u6d41\u306e\u6a5f\u5668\u3092\u6c5a\u67d3\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u88fd\u54c1\u306e\u54c1\u8cea\u306b\u3082\u5f71\u97ff\u3057\u3001\u751f\u7523\u8a2d\u5099\u3092\u640d\u50b7\u3059\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\u30aa\u30a4\u30eb\u6d88\u8cbb\u91cf\u304c\u591a\u3044\u6839\u672c\u539f\u56e0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3068\u904b\u8ee2\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u30021.\u4e3b\u306a\u539f\u56e0\u30aa\u30a4\u30eb\u30bb\u30d1\u30ec\u30fc\u30bf\u30fc\u306e\u6545\u969c \u7d66\u6cb9\u5f0f\u30b9\u30af\u30ea\u30e5\u30fc\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u3067\u306f\u3001\u6e29\u5ea6\u3068\u6469\u64e6\u3092\u4f4e\u6e1b\u3059\u308b\u305f\u3081\u306b\u3001\u5727\u7e2e\u5de5\u7a0b\u3067\u5927\u91cf\u306e\u6f64\u6ed1\u6cb9\u304c\u5674\u5c04\u3055\u308c\u308b\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u30aa\u30a4\u30eb\u3068\u7a7a\u6c17\u306e\u6df7\u5408\u7269\u304c\u4f5c\u3089\u308c\u3001\u30aa\u30a4\u30eb\u30bb\u30d1\u30ec\u30fc\u30bf\u30fc\u306b\u9001\u3089\u308c\u308b\u3002\u3053\u306e\u30bb\u30d1\u30ec\u30fc\u30bf\u30fc\u306e\u76ee\u7684\u306f\u3001\u6392\u51fa\u524d\u306b\u5727\u7e2e\u7a7a\u6c17\u304b\u3089\u30aa\u30a4\u30eb\u3092\u62bd\u51fa\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3082\u3057\u30aa\u30a4\u30eb\u30bb\u30d1\u30ec\u30fc\u30bf\u30fc\u30a8\u30ec\u30e1\u30f3\u30c8 [...]...<\/p>","protected":false},"author":1,"featured_media":2640,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[32],"tags":[199,34,53,200,101],"class_list":{"0":"post-2709","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-blog","8":"tag-air-dryers","9":"tag-baldor","10":"tag-baldor-air-compressors","11":"tag-high-quality-components","12":"tag-screw-air-compressors"},"_links":{"self":[{"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/posts\/2709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/comments?post=2709"}],"version-history":[{"count":2,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/posts\/2709\/revisions"}],"predecessor-version":[{"id":2762,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/posts\/2709\/revisions\/2762"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/media\/2640"}],"wp:attachment":[{"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/media?parent=2709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/categories?post=2709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baldor-air.com\/ja\/wp-json\/wp\/v2\/tags?post=2709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}