{"id":6754,"date":"2019-10-30T14:50:56","date_gmt":"2019-10-30T14:50:56","guid":{"rendered":"http:\/\/www.condra.co.za\/?p=6754"},"modified":"2019-10-30T14:50:56","modified_gmt":"2019-10-30T14:50:56","slug":"hook-block-the-star-of-this-overhead-crane","status":"publish","type":"post","link":"https:\/\/condra.co.za\/en\/hook-block-the-star-of-this-overhead-crane\/","title":{"rendered":"HOOK-BLOCK THE STAR OF THIS OVERHEAD CRANE"},"content":{"rendered":"The humble hook-block was recently elevated in status to become the key component of an electric overhead crane completed by Condra for a metal refinery.\r\n\r\nCustom designed to specification, the block comprised an electrically insulated square steel frame suspended horizontally from four rope pulleys at its corners, and fitted with five hooks to meet the requirements of three different applications.\r\n\r\n \r\n\r\n
\"\"

A. Overhead crane and hook-block undergoing load test prior to shipping.<\/p><\/div>\r\n\r\n \r\n\r\nAfter installation and commissioning of the crane, four of the five hooks will carry out the primary function of removing racks of cathodic plates from acid baths used in the refining process.\r\n\r\nThese identical hooks are bolted two to each side of the steel frame to steady the racks while the crane carries them to stacking areas ready for despatch. Steadying of the racks will allow faster crane movement and increased productivity.\r\n\r\n \r\n\r\n

\"\"

B. A closer look at the hook-block. The five hooks and four pulleys are clearly seen in this photograph.<\/p><\/div>\r\n\r\n \r\n\r\nThe fifth hook, of conventional swivel design, is mounted centrally in the block to execute the crane\u2019s secondary function of loading the plates onto trucks.\r\n\r\nRoutine plant maintenance, the third of the crane\u2019s functions, will also be carried out by this fifth hook.\r\n\r\nThe rubber matting which can be seen at the pulley mounting points between the four pulleys and the square steel frame (photograph C) provides electrical insulation for the crane to protect its motors from the charge applied to the acid baths.\r\n\r\nCondra routinely supplies custom-manufactured crane components and complete cranes to customers worldwide.\r\n\r\n \r\n\r\n

\"\"

C. View from below the hook-block. In this shot can be seen the rubber insulation (black) in the pulley mounting points, used to insulate the crane from electrical current passing through the acid baths.<\/p><\/div>\r\n\r\n \r\n\r\nThis particular machine was shipped in the third week of September.","protected":false},"excerpt":{"rendered":"The humble hook-block was recently elevated in status to become the key component of an electric overhead crane completed by Condra for a metal refinery. Custom designed to specification, the block comprised an electrically insulated square steel frame suspended horizontally…","protected":false},"author":4,"featured_media":6755,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-6754","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","entry","has-media"],"_links":{"self":[{"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/posts\/6754","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/comments?post=6754"}],"version-history":[{"count":8,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/posts\/6754\/revisions"}],"predecessor-version":[{"id":6777,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/posts\/6754\/revisions\/6777"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/media\/6755"}],"wp:attachment":[{"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/media?parent=6754"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/categories?post=6754"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/condra.co.za\/en\/wp-json\/wp\/v2\/tags?post=6754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}