ISC 3/4″ Large Aluminum Rigging Block


4-5/8in sheave, up to 3/4in rope capacity, weighs 7.7 lbs, 4.4 ton working load limit. Green sheave (3/4in rope capacity) for easy identification.

SKU: RP057A1 Categories: ,


Spring lock blocks are popular among riggers for their high strength-to-weight ratio and quick-twist rope access. Solid aluminum-alloy cheek plates, bushing, and sheave are supported by stainless-steel axles. For those concerned about aluminum not withstanding the punishment of steel, we have no record of a fracture complaint in 3 years of production. Spring lock blocks have broad cheek plates to protect running lines, and large sheaves to minimize bend in rigging lines (providing 4:1 up to 9:1 ratios).

Additional information

Weight 8 lbs
Dimensions 6 × 4 × 2 in


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