{"id":9683,"date":"2017-11-08T16:26:24","date_gmt":"2017-11-09T00:26:24","guid":{"rendered":"http:\/\/robbinstbm.com\/?p=9683\/"},"modified":"2018-03-22T10:30:42","modified_gmt":"2018-03-22T17:30:42","slug":"100th-continuous-conveyor","status":"publish","type":"post","link":"https:\/\/www.robbinstbm.com\/es\/100th-continuous-conveyor\/","title":{"rendered":"A 100th System for Robbins Continuous Conveyors"},"content":{"rendered":"<p>On October 18, 2017, a Robbins 9.26 m (30.4 ft) diameter <a href=\"https:\/\/www.robbinstbm.com\/products\/tunnel-boring-machines\/crossover-machines\/\" target=\"_blank\" rel=\"noopener\">Crossover<\/a> machine started up at the <a href=\"https:\/\/www.robbinstbm.com\/akron-acceptance\/\" target=\"_blank\" rel=\"noopener\">Akron Ohio Canal Interceptor Tunnel (OCIT)<\/a> in Ohio, USA\u2014but the startup wasn\u2019t the only milestone.\u00a0 Running behind the Crossover TBM is the 100<sup>th<\/sup> <a href=\"https:\/\/www.robbinstbm.com\/products\/conveyors\/\" target=\"_blank\" rel=\"noopener\">Robbins Continuous Conveyor system<\/a> supplied for muck removal.\u00a0 The side-mounted conveyor is a design standard, but the landmark is a significant one: \u201cWith this system we have provided more conveyors than any other TBM conveyor supplier,\u201d said Dean Workman, Robbins Director of Conveyors, Cutters, &amp; SBUs.\u00a0 Counting conveyor systems the company has on order but has not yet delivered, that number is now well above 100, Workman added.<\/p>\n<p><strong><\/strong><\/p>\n<p>The Akron OCIT conveyor system consists of the belt plus a main drive, splice stand, storage unit, and advancing tailpiece, operating through several curves requiring patented self-adjusting curve idlers that correct themselves based on varying belt tension and belt load. The system discharges onto a customer-supplied overland conveyor, which delivers the muck to a large storage yard near the portal site. The belt was designed to handle variable geology, from soft soils to partial face rock and finally full-face shale rock.<\/p>\n<p>The 100<sup>th<\/sup> conveyor system has been refurbished and customized for the job in a process that Robbins has been perfecting for decades: \u201cWe design our conveyor systems to last for five to ten years, but many last for decades longer. We have systems utilizing components that have been in operation for 30 years. We haven\u2019t reached a limit for many of our systems\u2014for example we had a specialized conveyor system built more than a decade ago for the Parramatta Rail Link in Sydney, Australia. Those components were refurbished for a job in Atlanta, Georgia, and now they are being used at the Dig Indy tunnels in Indianapolis, Indiana.\u00a0 These are long and challenging tunnel drives and the components are up to it.\u201d While the Akron OCIT conveyor is just beginning to haul muck, it is sure to be a benefit throughout the project\u2019s varying ground conditions.<\/p>\n<p>The conveyor in Akron is also part of a <a href=\"https:\/\/www.robbinstbm.com\/about\/history\/\" target=\"_blank\" rel=\"noopener\">long history<\/a> for Robbins conveyors\u2014the first of which (not counted in the list of 100) was the first ever continuous conveyor system used behind a TBM.\u00a0 That prototype, developed by founder James S. Robbins in 1963, was successfully used behind the 11.2 m (36.7 ft) diameter Main Beam TBM at the Mangla Dam project in what was then known as West Pakistan. While conveyors would not be adopted as a standard method of muck removal for many years afterward, the project laid the groundwork for future success.<\/p>\n<p>Today\u2019s conveyor systems are capable of spanning dozens of kilometers and hauling 1,800 metric tons (2,000 US tons) an hour or more.\u00a0 It\u2019s a legacy that Workman sees will continue to grow: \u201cThis is my 20<sup>th<\/sup> year with Robbins and I remember when we started our conveyor list.\u00a0 It is amazing to look at all of the jobs and things we\u2019ve done. It\u2019s amazing to see what these systems can do.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>On October 18, 2017, a Robbins 9.26 m (30.4 ft) diameter Crossover machine started up at the Akron Ohio Canal Interceptor Tunnel (OCIT) in Ohio, USA. Running behind the Crossover TBM is the 100th Robbins Continuous Conveyor system supplied for muck removal.\u00a0<\/p>\n","protected":false},"author":2,"featured_media":9685,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[10,3],"tags":[],"class_list":["post-9683","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-press-releases"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A 100th System for Robbins Continuous Conveyors - Robbins<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.robbinstbm.com\/100th-continuous-conveyor\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A 100th System for Robbins Continuous Conveyors - Robbins\" \/>\n<meta property=\"og:description\" content=\"On October 18, 2017, a Robbins 9.26 m (30.4 ft) diameter Crossover machine started up at the Akron Ohio Canal Interceptor Tunnel (OCIT) in Ohio, USA. 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