{"product_id":"marlow-altair-tree-climbing-rope","title":"Marlow Altair 11.6mm Arborist Climbing Rope 32-Plait EN1891 ANSI Z133","description":"\u003cp\u003eThe \u003cstrong\u003eMarlow Altair\u003c\/strong\u003e is Marlow’s newest arborist climbing rope, purpose-built for tree care professionals seeking smooth handling, dependable performance, and compatibility with modern mechanical climbing devices. The supple 32-plait polyester cover over a 12-strand polyester core runs effortlessly through hardware, knots easily, and delivers exceptional control. Lightweight yet durable, the Altair combines very good UV resistance and good abrasion and chemical resistance with a refined balance of flexibility and strength. Available in Pink or Purple, in 120, 150, and 200 ft lengths, with a low-profile spliced eye termination.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Device Compatible\u003c\/strong\u003e — Engineered for use with modern mechanical climbing devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32-Plait Cover Construction\u003c\/strong\u003e — Supple, smooth-running cover for effortless hardware performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Handle and Knot\u003c\/strong\u003e — Flexible construction for confident knotting and rope management\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight\u003c\/strong\u003e — 6.9 lbs\/100 ft for reduced pack weight and fatigue\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVery Good UV Resistance\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGood Abrasion and Chemical Resistance\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Spliced Eye Termination\u003c\/strong\u003e — Clean, low-bulk end fitting for hardware compatibility\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCE EN 1891 and ANSI Z133 Certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerformance Data\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 11.6mm (29\/64\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.28 kg\/100m (6.9 lbs\/100 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElongation:\u003c\/strong\u003e 2.4%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvg. Break Load (Spliced):\u003c\/strong\u003e 21 kN (4,720 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvg. Break Load (Figure-8 Loop):\u003c\/strong\u003e 16.9 kN (3,800 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic Strength:\u003c\/strong\u003e 28.1 kN (6,317 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eMaterial Properties\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e 12-strand core, 32-plait cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester cover, polyester core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative Density:\u003c\/strong\u003e 1.38\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting Point:\u003c\/strong\u003e 250°C \/ 482°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV Resistance:\u003c\/strong\u003e Very good\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Resistance:\u003c\/strong\u003e Good\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination:\u003c\/strong\u003e Low-profile spliced eye with whip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Marlow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE EN 1891, ANSI Z133\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Colors:\u003c\/strong\u003e Pink, Purple\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Lengths:\u003c\/strong\u003e 120 ft, 150 ft, 200 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Marlow Altair compatible with mechanical climbing devices?\u003c\/strong\u003e\u003cbr\u003eYes — the Altair is specifically engineered for compatibility with modern mechanical climbing devices. The 32-plait polyester cover provides the smooth, consistent surface profile that mechanical hitches and devices require for reliable engagement and controlled descent. Always verify your specific device’s rope diameter and construction requirements against the Altair’s 11.6mm specification before use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the spliced break load and the figure-8 loop break load?\u003c\/strong\u003e\u003cbr\u003eThe spliced break load (21 kN \/ 4,720 lbs) reflects the strength of the rope terminated with a professionally spliced eye, which retains close to full rope strength. The figure-8 loop break load (16.9 kN \/ 3,800 lbs) reflects the reduced strength introduced when the rope is knotted — knots create stress concentrations that reduce effective strength by approximately 20–40% depending on knot type. A spliced termination is always the stronger and preferred option for permanent or semi-permanent rigging configurations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does EN 1891 certification mean for a climbing rope?\u003c\/strong\u003e\u003cbr\u003eEN 1891 is the European standard for low-stretch kernmantle ropes used in work positioning, fall arrest, and rope access applications. Certification to EN 1891 means the rope has been tested and verified to meet defined minimum strength, elongation, and handling requirements. The Altair meets this standard as well as ANSI Z133, the US arborist industry safety standard for tree care operations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I get the Altair with a splice on one end or both ends?\u003c\/strong\u003e\u003cbr\u003eThe Altair is available with a low-profile spliced eye termination. For specific termination requirements or custom configurations, contact us and we can advise on what Marlow offers for this rope.\u003c\/p\u003e","brand":"Marlow","offers":[{"title":"Pink \/ 120 Feet","offer_id":67607906615615,"sku":"RE-11.6X120-ALT-PINK","price":159.95,"currency_code":"USD","in_stock":true},{"title":"Pink \/ 150 Feet","offer_id":67607906648383,"sku":"RE-11.6X150-ALT-PINK","price":199.95,"currency_code":"USD","in_stock":true},{"title":"Pink \/ 200 Feet","offer_id":67607906681151,"sku":"RE-11.6X200-ALT-PINK","price":249.95,"currency_code":"USD","in_stock":true},{"title":"Purple \/ 120 Feet","offer_id":67607906713919,"sku":"RE-11.6X120-ALT-PUR","price":159.95,"currency_code":"USD","in_stock":true},{"title":"Purple \/ 150 Feet","offer_id":67607906746687,"sku":"RE-11.6X150-ALT-PUR","price":199.95,"currency_code":"USD","in_stock":true},{"title":"Purple \/ 200 Feet","offer_id":67607906779455,"sku":"RE-11.6X200-ALT-PUR","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/2057\/3268\/files\/TSALT_AltairComingsoon-pink.png?v=1790770079","url":"https:\/\/www.bartlettman.com\/products\/marlow-altair-tree-climbing-rope","provider":"Bartlett Arborist Supply","version":"1.0","type":"link"}