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Recreational Gear > Climbing > Pulleys and Blocks > Blocks > Aluminum > 

4.5 Ton Giant Spring Lock Aluminum Block by ISC, 3/4" line

4-5/8" sheave, up to 3/4" rope capacity, weighs 7.7 lbs, 4.5 ton working load limit. Green sheave (3/4" rope capacity) for easy identification.

Item #: 21862

Your Price: $269.95

 
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4.5 Ton Giant Spring Lock Aluminum Block by ISC, 3/4
  • Description
  • Specs
  • Product Video
  • Reviews
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. These blocks were designed by Denny M. Moorehouse of Wales, founder of the popular work, rock, and rescue tool manufacturer DMM. Denny is often referred to as The Wizard of Iron and is well known for his attention to quality and toughness. 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).

CE Certified : YES

Meets ANSI Requirements :

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Weight : 7.61 lbs; 3,454 g

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Material : Finish - Powder Coated

Color : Yellow Block - Green Sheave

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Metal : Aluminium

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Rope Capacity : MAX 19mm (3/4")

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PDF Instructions : Click Here

Parts PDF : Click Here

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