{"id":2401,"date":"2026-07-22T15:00:00","date_gmt":"2026-07-22T15:00:00","guid":{"rendered":"https:\/\/swesd.com\/?p=2401"},"modified":"2026-07-22T15:00:00","modified_gmt":"2026-07-22T15:00:00","slug":"esd-circulation-rack-wip-routing","status":"publish","type":"post","link":"https:\/\/swesd.com\/ar\/blog\/esd-circulation-rack-wip-routing\/","title":{"rendered":"How should an ESD circulation rack route WIP between steps?"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Plan ESD circulation-rack WIP routing with defined handoffs, board sequence, temporary-buffer rules, ESD evidence, and inputs before selecting a model.<\/strong><\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Start with the live <a href=\"https:\/\/swesd.com\/ar\/esd-rack\/\">ESD Rack category<\/a> and make the process requirement specific enough for quotation review.<\/p>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"ESD rack storage planning context\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/03\/3W-9805405.webp\" \/><\/figure>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\">Contents<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"#part-1-temporary-storage-decision\">Part 1. Temporary-storage decision<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-2-open-storage-versus-magazine-racks\">Part 2. Open storage versus magazine racks<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-3-slots-and-board-envelope\">Part 3. Slots and board envelope<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-4-access-and-handoff\">Part 4. Access and handoff<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-5-temporary-wip-rule\">Part 5. Temporary WIP rule<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-6-esd-evidence\">Part 6. ESD evidence<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-7-rfq-and-sample-review\">Part 7. RFQ and sample review<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#faq\">\u0623\u0633\u0626\u0644\u0629 \u0645\u062a\u0643\u0631\u0631\u0629<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#references\">\u0627\u0644\u0645\u0631\u0627\u062c\u0639<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-1-temporary-storage-decision\">Part 1. Temporary-storage decision<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A rack belongs at a process point when boards predictably wait there and the wait has a named next action. An unassigned table is a signal to document the handoff before choosing equipment.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-2-open-storage-versus-magazine-racks\">Part 2. Open storage versus magazine racks<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">An ESD Rack here means open slotted storage for static-sensitive items. It is not a PCB magazine rack.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Magazine racks are enclosed holders for loader and unloader automation. Their interfaces and handling logic are outside this article.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-3-slots-and-board-envelope\">Part 3. Slots and board envelope<\/h2>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"ESD rack slot and access review\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/03\/3W-9805404-2-.webp\" \/><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">Slot spacing must be checked against the handled board or panel envelope rather than copied as a universal value. Record edge condition, packaging, orientation, and access motion.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Confirm the relevant model row in the quotation and sample-use review. An empty fixture does not prove loaded-board fit.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-4-access-and-handoff\">Part 4. Access and handoff<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Place the open face where the responsible operator can load and remove work without crossing a walkway or machine-access zone. Keep the next action and oldest waiting work visible.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Record the process handoff, owner, status method, and exception route. A controlled position needs these operating details.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-5-temporary-wip-rule\">Part 5. Temporary WIP rule<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Temporary storage needs a cap and clearing trigger. Without them, an orderly rack can become hidden long-term storage.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Assign exception clearing to one role and revisit the rule when product flow changes. This is a workflow rule, not a performance claim.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-6-esd-evidence\">Part 6. ESD evidence<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\"><a href=\"https:\/\/www.esda.org\/store\/standards\/product\/314\/ansiesd-s20-20-2021\/\" rel=\"nofollow noopener\" target=\"_blank\">ANSI\/ESD S20.20-2021<\/a> provides program context; it does not approve an individual rack. The buyer defines the test method, evidence, and acceptance approach.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use the <a href=\"https:\/\/swesd.com\/ar\/esd-rack\/\">ESD Rack category<\/a> to identify families, then request a quoted-model review. Do not infer dimensions, load ratings, materials, MOQ, price, or lead time from a family label.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-7-rfq-and-sample-review\">Part 7. RFQ and sample review<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Send board envelope, slot and access requirement, handoff, temporary rule, ESD evidence request, and acceptance criteria. The supplier can then map the request to a model review.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">A sample-use review checks real-board insertion, removal, operator reach, status visibility, and site constraints. It also confirms open-rack storage rather than magazine-rack automation.<\/p>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"Sanwei ESD rack category quote review\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/03\/3W-9805404.webp\" \/><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">For product recommendation, start with the <a href=\"https:\/\/swesd.com\/ar\/esd-rack\/\">Sanwei ESD Rack category<\/a> and request a quote-confirmed model review.<\/p>\n<h3 style=\"margin:28px 0 12px\">Fit Boundary<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Documented temporary handoff supports a rack requirement. Loader or unloader handling needs magazine-rack evaluation. Uncertain fit needs sample review under site rules.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"faq\">\u0623\u0633\u0626\u0644\u0629 \u0645\u062a\u0643\u0631\u0631\u0629<\/h2>\n<h3 style=\"margin:28px 0 12px\">What is an ESD rack with slots?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">It is open rack storage that holds static-sensitive work in slots for a defined use.<\/p>\n<h3 style=\"margin:28px 0 12px\">Is an ESD rack with slots a magazine rack?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. This article covers open storage; a magazine rack is an enclosed automation holder.<\/p>\n<h3 style=\"margin:28px 0 12px\">How should slot spacing be specified?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Provide board envelope, edge condition, packaging, orientation, and access requirement.<\/p>\n<h3 style=\"margin:28px 0 12px\">What should a temporary SMT rack position record?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Record handoff, owner, access direction, status method, storage cap, and clearing trigger.<\/p>\n<h3 style=\"margin:28px 0 12px\">How can a rack avoid becoming permanent storage?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Set a cap, define the next action, assign an owner, and make exceptions visible.<\/p>\n<h3 style=\"margin:28px 0 12px\">What ESD evidence should be requested?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Request the test method, evidence, and acceptance criteria required by the buyer program.<\/p>\n<h3 style=\"margin:28px 0 12px\">What should a sample-use review check?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Check real-board insertion, removal, access, status visibility, process flow, and site constraints.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"references\">\u0627\u0644\u0645\u0631\u0627\u062c\u0639<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/www.esda.org\/store\/standards\/product\/314\/ansiesd-s20-20-2021\/\" rel=\"nofollow noopener\" target=\"_blank\">ANSI\/ESD S20.20-2021 ? ESD control program standard information<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/www.esda.org\/news\/an-overview-of-ansiesd-s20-20\/\" rel=\"nofollow noopener\" target=\"_blank\">EOS\/ESD Association overview of ANSI\/ESD S20.20<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Plan ESD circulation-rack WIP routing with defined handoffs, board sequence, temporary-buffer rules, ESD evidence, and inputs before selecting a model. Start with the live ESD Rack category and make the process requirement specific enough for quotation review. Contents Part 1. Temporary-storage decision Part 2. Open storage versus magazine racks Part 3. Slots and board envelope [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":1290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/posts\/2401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/comments?post=2401"}],"version-history":[{"count":1,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/posts\/2401\/revisions"}],"predecessor-version":[{"id":2423,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/posts\/2401\/revisions\/2423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/media\/1290"}],"wp:attachment":[{"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/media?parent=2401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/categories?post=2401"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swesd.com\/ar\/wp-json\/wp\/v2\/tags?post=2401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}