{"id":89,"date":"2026-09-17T10:01:07","date_gmt":"2026-09-17T02:01:07","guid":{"rendered":"https:\/\/www.dhxctest.cn\/index.php\/2026\/09\/17\/racks-per-hour-school-canteen-case-study\/"},"modified":"2026-09-17T10:01:07","modified_gmt":"2026-09-17T02:01:07","slug":"racks-per-hour-school-canteen-case-study","status":"publish","type":"post","link":"https:\/\/www.dhxctest.cn\/index.php\/2026\/09\/17\/racks-per-hour-school-canteen-case-study\/","title":{"rendered":"Racks Per Hour in Practice: Photos and Numbers from Three Oberon Installations"},"content":{"rendered":"<p>Racks per hour is the number every buyer asks about, and the number most quote sheets hide behind footnotes. This case study shows what that number looks like on real floors \u2014 a school canteen dishroom, a stainless central kitchen, and a restaurant wash station \u2014 using photos from recent Oberon installations.<\/p>\n<h2>The school canteen line: 4,000 trays through one meal window<\/h2>\n<p>Canvas for thought: a school canteen that serves lunch to 2,000 students in 45 minutes collects roughly 4,000 trays, bowls, and cutlery baskets in that window. Hand washing at 6 staff moved about 90 racks in the same period \u2014 and the queue outside the dishroom kept growing.<\/p>\n<p>The installed answer was a rack conveyor line: an entry table with pre-scraping basin, a single-tank rack conveyor dishwasher, and a clean-side exit table. Blue curtain strips at the entry and exit keep steam and splash inside the machine. On the floor, the line runs 60 to 90 racks per hour with 2 staff \u2014 one feeding, one collecting.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case1.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><\/p>\n<p>What changed in numbers the kitchen manager shared with us:<\/p>\n<ul>\n<li>Tray turnaround from drop-off to stack-ready: under 4 minutes<\/li>\n<li>Dishroom staff at peak: from 6 to 2<\/li>\n<li>Water per rack: from roughly 4 liters (hand flow) to 2.2 liters<\/li>\n<\/ul>\n<h2>Central kitchen: two crate lines running side by side<\/h2>\n<p>A central kitchen producing 30,000 meals a day washes crates, not plates. The floor photo below shows twin crate washing lines, each with an upturn section that empties crates before washing \u2014 liquid waste drains, solids collect in the detashing drawer, and the washer handles the empty crates at higher belt speed.<\/p>\n<p>Green crates enter soiled and leave dry enough to stack immediately. The two lines run on alternating shifts during harvest peaks; between runs, the open layout gives one worker full visual coverage of both machines.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case5.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><\/p>\n<h2>Restaurant stations: when a full line is more than the room needs<\/h2>\n<p>A restaurant wash station does not always need meters of conveyor. Two undercounter installations from this batch show the compact end of the range: a soiled-side table with scrap basin feeding a hood-type machine, and a stand-alone undercounter unit placed beside a service counter. Both run standard 500\u00d7500 mm racks, which keeps the per-rack math simple when comparing with larger lines.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case7.png\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case8.png\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><\/p>\n<h2>More from the same installations<\/h2>\n<p>Stainless kitchens behave differently before and after the line arrives \u2014 the photos below show hood-type and flight type installations at handover, with drainage trenches and condensate hoods already in place.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case2.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case3.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case4.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><img decoding=\"async\" src=\"https:\/\/www.dhxctest.cn\/wp-content\/uploads\/2026\/09\/case6.jpg\" alt=\"\" class=\"w-full rounded-xl mb-8\" loading=\"lazy\"><\/p>\n<h2>What these floors have in common<\/h2>\n<p>Three decisions show up in every smooth installation, regardless of machine size:<\/p>\n<ul>\n<li><strong>Layout before machine.<\/strong> Soiled drop-off, wash, clean staging in a straight line \u2014 the photos all show one-direction flow, no cross-traffic.<\/li>\n<li><strong>Floor drainage sized for the worst hour.<\/strong> Trench drains along the whole line, not a single point drain.<\/li>\n<li><strong>Rack standard from day one.<\/strong> 500\u00d7500 mm racks across the site keep every machine interchangeable and the per-rack cost comparable.<\/li>\n<\/ul>\n<h2>How to read racks per hour on a quote sheet<\/h2>\n<p>When two machines both claim &#8220;high capacity&#8221;, check three rows of the specification:<\/p>\n<ul>\n<li><strong>Rated racks per hour<\/strong> \u2014 and at what soil level the rating was tested.<\/li>\n<li><strong>Tank heating power<\/strong> \u2014 recovery speed between racks decides whether the rated number survives your peak.<\/li>\n<li><strong>Water per rack<\/strong> \u2014 2 L and 4 L look similar on paper and diverge into a second utility bill over a school year.<\/li>\n<\/ul>\n<p>Oberon&#8217;s own ranges are published openly: <a href=\"https:\/\/oberonwarewasher.com\/products\/conveyor-dishwasher\/\" target=\"_blank\" rel=\"noopener\">rack conveyor lines<\/a>, <a href=\"https:\/\/oberonwarewasher.com\/products\/flight-type-dishwasher\/\" target=\"_blank\" rel=\"noopener\">flight type systems<\/a>, and <a href=\"https:\/\/oberonwarewasher.com\/products\/undercounter-dishwasher\/\" target=\"_blank\" rel=\"noopener\">undercounter machines<\/a> each list capacity, power, and water figures on the product page.<\/p>\n<h2>Planning a canteen or central kitchen line?<\/h2>\n<p>Send us your meal count, peak window, and floor plan \u2014 <a href=\"https:\/\/oberonwarewasher.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Oberon application engineers<\/a> will return a layout drawing with a racks-per-hour calculation for your specific tray mix, drawn from installations like the ones above.<\/p>\n<h2>Related reading<\/h2>\n<ul>\n<li><a href=\"https:\/\/oberonwarewasher.com\/blog\/commercial-dishwasher-sizing-guide\/\" target=\"_blank\" rel=\"noopener\">Commercial dishwasher sizing guide<\/a><\/li>\n<li><a href=\"https:\/\/oberonwarewasher.com\/blog\/how-much-does-a-commercial-dishwasher-cost\/\" target=\"_blank\" rel=\"noopener\">Commercial dishwasher cost guide 2027<\/a><\/li>\n<li><a href=\"https:\/\/oberonwarewasher.com\/blog\/haccp-commercial-dishwasher-compliance\/\" target=\"_blank\" rel=\"noopener\">HACCP compliance for commercial dishwashers<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A school canteen moving 4,000 trays in one meal window, a central kitchen running twin crate lines, and two compact wash stations \u2014 racks per hour, water per rack, and staff numbers from real Oberon floors.<\/p>\n","protected":false},"author":0,"featured_media":81,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-89","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oberon"],"_links":{"self":[{"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/posts\/89","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/comments?post=89"}],"version-history":[{"count":0,"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/posts\/89\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/media\/81"}],"wp:attachment":[{"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/media?parent=89"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/categories?post=89"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dhxctest.cn\/index.php\/wp-json\/wp\/v2\/tags?post=89"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}