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CMI Stainless Steel 20mm (3/4") Arborist Block.
This Arborist Block features a wide upper bushing to maximize sling strength and wide side plates to protect the rope from abrasion. One-piece design eliminates lost parts. 3" lower sheave will accept bull ropes up to 3/4" diameter. Stainless steel side plates, aluminum bushing, and zinc-plated steel axle means this pulley stands up to the elements as well as the load. Designed for heavy duty shock loading unlike regular pulleys.
SWL 3,600kgs. Breaking Strength 18,140 kgs.