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57mm Double Halyard Block

item NO.：HL-0503F
Detail Specs

  • Halyard Blocks

    Halyard blocks are made by one piece machine made sideplate for perfect balance between weight and strength.  Stainless steel sleeve and two races ball bearing provide smooth rotation for extreme high loads. All materials are UV-resistant adn anti-corrosion for maximum protection and long lasting durability.
     

    57mm Double Halyard Block
    HL-5703F
    $

    MATERIALS
    • Sheave: Black hardcoat anodized Aluminum
    • Ball Bearing: 316 stainless steel sleeve bearing and two races Derlin® ball bearing
    • Sideplates/frames: Black hardcoat anodized Aluminum
    Do not use Master  products for human suspension!
     

     

  • SPECS

    Sheave Ø (mm) 57mm Sheave Ø (in.) 1 1/3 in.
    Maximum line Ø (mm) 10mm Maximum line Ø (in.) 3/8 in.
    Weight (g) 912g Weight (oz.) 32.17oz.
    Maximum working load (kg.) 1200kg. Maximum working load (lb.) 2246lb.
    Maximum breaking load (kg.) 5500kg. Maximum breaking load (lb.) 5516lb.

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