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).
- MBS: 100kN
- WLL: 19.57kN (4,400 lbs.)
- Length: 7.0″ (175mm)
- Width: 4.0″ (100mm)
- Thickness: 2.5″ (65mm)
- Weight: 3.25 lbs. (1.5kg)
- Sheave Diameter: 2.75″ (70mm)
- Maximum Rope Diameter: 5/8″ (16mm)
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