{"product_id":"isc-20mm-medium-rigging-pulley-block","title":"ISC 20mm Medium Rigging Pulley Block","description":"\u003ch2\u003eISC 20mm Medium Rigging Pulley Block\u003c\/h2\u003e\n\n\u003cp\u003eThe ISC 20mm Medium Rigging Pulley Block is part of the Next Generation 200 Series, designed and manufactured in the UK at ISC’s North Wales facility. Developed to build upon the trusted strength and reliability of previous ISC pulleys, the 200 Series introduces significant structural improvements while retaining the performance professionals expect.\u003c\/p\u003e\n\n\u003ch4\u003eRe-engineered for increased strength\u003c\/h4\u003e\n\u003cp\u003eThe pulley plates have been completely redesigned using advanced stress analysis tools. Material has been reshaped and redistributed within the hot forged high-strength aluminium frames to optimise load performance. Combined with a unique axle and frame interlocking design using heat-treated hardened stainless steel axles, the system reduces deformation under extreme loads. The result is a pulley rated up to 150% stronger than previous generations.\u003c\/p\u003e\n\n\u003ch4\u003ePatent pending SafeLock mechanism\u003c\/h4\u003e\n\u003cp\u003eThe new SafeLock system builds on the reliability of ISC’s popular SpringLock closure while achieving a lower profile design. It maintains fast, intuitive operation while delivering secure locking performance suitable for demanding rigging tasks.\u003c\/p\u003e\n\n\u003ch4\u003eBuilt for heavy-duty rigging applications\u003c\/h4\u003e\n\u003cp\u003eCompatible with ropes up to 20 mm (3\/4″), the pulley offers a minimum breaking strength of 300 kN and a working load limit of 60 kN. It features an anodised finish, green pulley wheel and individual serial numbering as standard. The pulley weighs 2682 g (5.9 lb).\u003c\/p\u003e\n\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible rope diameter up to 20 mm (3\/4″)\u003c\/li\u003e\n  \u003cli\u003eMinimum breaking strength 300 kN (67442 lbf)\u003c\/li\u003e\n  \u003cli\u003eWorking load limit 60 kN (13488 lbf)\u003c\/li\u003e\n  \u003cli\u003eHot forged high-strength aluminium construction\u003c\/li\u003e\n  \u003cli\u003eHeat-treated stainless steel axle\u003c\/li\u003e\n  \u003cli\u003ePatent pending SafeLock locking mechanism\u003c\/li\u003e\n  \u003cli\u003eAnodised finish\u003c\/li\u003e\n  \u003cli\u003eWeight 2682 g (5.9 lb)\u003c\/li\u003e\n  \u003cli\u003eIndividually serial numbered\u003c\/li\u003e\n  \u003cli\u003eApproved to CE Machinery Directive 2006\/42\/EC and UKCA Supply of Machinery Regulations 2008\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISC","offers":[{"title":"Default","offer_id":52875235459415,"sku":"RP255A1","price":186.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/0785\/8263\/files\/ISC-20mm-Medium-Rigging-Pulley-Block.jpg?v=1772085504","url":"https:\/\/treeworker.com\/products\/isc-20mm-medium-rigging-pulley-block","provider":"www.treeworker.com","version":"1.0","type":"link"}