Cat's Eye Ultrex

Cat's Eye Ultrex

Cat's Eye™ Ultrex™ is a specially designed product for underground mining. This rope keeps the high strength of Ultrex™ and adds a reflective component to allow it to be seen in the conditions unique to underground mining. The Spectra® fiber has been demonstrated to have better abrasion resistance and Yale's special construction techniques maximize those characteristics.

 Ultrex is a 12-strand single braid of 100% Ultra High Molecular Weight Polyethylene (UHMPE) fiber enhanced with Yale's Maxijacket HP coating supplying superior abrasion resistance. Ultrex's braid angles and twist level are designed to optimize break strength and keep stretch low. UHMPE is the most forgiving high modulus fiber giving better bend over sheave cycling capabilities than other high tech fibers. Ultrex has zero water absorption and maintains its flexibility even in freezing conditions. As is the case for all Yale ropes the strengths shown in the charts are for spliced ropes, and the splice technique for Ultrex is very easily mastered.

DiameterWeightAverage SplicedMinimum splicedMaximum
 InchesmmLbs/Kg/Break Strength*Break StrengthWork Load 5:1
1 1/82928.742.7148,00067,190133,20060,47129,60013,438
1 1/43236.153.8172,00078,085154,80070,27734,40015,617
1 5/163341.862.2184,00083,535165,60075,18236,80016,707
1 1/23857.084.9230,000104,420207,00093,97846,00020,884
1 5/84165.096.8285,000129,390256,500116,45157,00025,878
1 1/43278.0116.2330,000149,820297,000134,83866,00029,964

* Knots and abrupt bends significantly reduce the strength of all ropes and lowers the maximum working load.
** Working load is based on static or moderately dynamic lifting/pulling operations. Instant changes in load up or down in excess of 10% of the rope's rated working load constitutes hazardous shock load and would void normal working load recommendation. Consult Yale Cordage for guidelines for working loads and safe use of rope.


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