Most core shop layouts we see are the result of history: a cut-to-length line was bought and placed where there was room, a slitting line arrived later and went where the crane could reach, and the stacking area is wherever the laminations happened to end up. It works, but it costs forklift hours, floor space and damaged laminations every day. When a plant builds a new shop or re-plans an old one, the better approach is to draw the material flow first and place the machines on it.<\/p>\n
Silicon steel passes through the same sequence in every stacked-core shop, whatever the size of the plant.<\/p>\n
Every machine in the flow runs at a different rate and in different batch sizes: a slitting line produces several strip widths at once, a cutting line consumes one at a time, and core assembly works core by core. The buffers between them are what let each machine run without waiting for the next, so they are not wasted space; they are the reason the lines reach their output. Two buffers matter most.<\/p>\n
The strip store between slitting and cutting should hold enough coil variety that the cutting line can start any programme without waiting for slitting. The lamination buffer between cutting and stacking should hold at least a shift’s output, because the cutting line is normally faster than manual stacking and should not be stopped by it.<\/p>\n
For an automated core shop we designed, the flow was planned as a chain of stations with the buffers built into it: incoming coils into a strip storage rack of 424 positions; a rail-guided vehicle (RGV) carrying strip coils from the rack to the cutting line’s decoiler; the cut-to-length line; a seven-level buffer for cut stacks; a five-tonne stacker crane moving stacks into and out of a 90-position core storage; a tilting station; and automated guided vehicles (AGV) taking finished cores to assembly. Storage positioning was specified at \u00b15 mm and the forks were checked by finite-element analysis for a deflection of 5 mm or less under load, because a lamination stack placed imprecisely is a lamination stack that gets damaged. The full sequence is illustrated on the core shop logistics and smart storage<\/a> page.<\/p>\n Not every plant needs this much automation, but the sequence is the same at any scale; only the handling method changes.<\/p>\n Three practical numbers to have before drawing the layout. Machine footprint: a 1000-class cut-to-length line with a double-head decoiler needs roughly 32 by 8 metres and weighs about 45 tonnes; smaller classes scale down accordingly, and every added station adds length. Crane capacity: the heaviest master coil you will receive, with margin, and the reach to cover both the coil store and the decoiler. Installed power: a cutting line draws roughly 40 to 95 kW depending on class and configuration, a slitting line around 54 kW, and stacking and storage automation add to that.<\/p>\n Then add what is easy to forget: forklift lanes to the stacking tables on the sorting end of the cutting line, space to open and inspect coils, a maintenance area for shear blades, and a route for the finished core from the tilting station to assembly that does not cross the coil traffic.<\/p>\n Automation pays where handling is heaviest and damage is most expensive. In our experience the order is:<\/p>\n Roughly two to three times the footprint of the machines, once coil storage, strip storage, lamination buffers, forklift lanes and the tilting area are included. The exact figure depends on tonnage and on how much of the handling is automated.<\/p>\n They should be connected by the strip store, not placed side by side. What matters is that the strip store is reachable by the crane from the slitter and by the shuttle or forklift to the decoiler.<\/p>\n Yes, and it usually is. The sorting end of the cutting line and the strip storage can be automated without moving the lines; automatic stacking and core storage follow later.<\/p>","protected":false},"excerpt":{"rendered":" A core shop is a flow, not a collection of machines. This article follows silicon steel from the master coil to the finished core, shows where the buffers and the handling belong, and explains which steps are worth automating and in what order.<\/p>","protected":false},"author":0,"featured_media":3037,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Transformer Core Shop Layout: From Coil to Finished Core | SREE","_seopress_titles_desc":"How to lay out a transformer core shop: material flow from coil storage through slitting, cut-to-length and stacking, where buffers and handling go, and which steps to automate first.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-core-shop-planning"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/posts\/3149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/comments?post=3149"}],"version-history":[{"count":1,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/posts\/3149\/revisions"}],"predecessor-version":[{"id":3160,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/posts\/3149\/revisions\/3160"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/media\/3037"}],"wp:attachment":[{"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/media?parent=3149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/categories?post=3149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.springmake.com\/zh\/wp-json\/wp\/v2\/tags?post=3149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Space, crane and power<\/h2>\n
What to automate first<\/h2>\n
\n
Frequently asked questions<\/h2>\n
How much floor space does a core shop need?<\/h3>\n
Should the slitting line be next to the cutting line?<\/h3>\n
Can an existing shop be automated step by step?<\/h3>\n