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High Strength G80 Alloy Steel Foundry Hook for Chain Lifting
Lifting Accessory

High Strength G80 Alloy Steel Foundry Hook for Chain Lifting

The master link (also known as a lifting master link, main link or top link) is a solid, weld-free forged high-tensile alloy steel ring designed as the primary load-bearing connection component for multi-leg lifting slings. It serves as the single central connection point that gathers multiple chain legs of a sling, enabling the entire rigging set to be hooked onto crane hooks, hoist lifting points or lifting lugs. Manufactured in Grade 80, Grade 100 high-strength steel with hot-dip galvanized anti-corrosion treatment, all master links are load-tested and certified to meet international lifting safety standards for construction, marine, mining and warehouse cargo handling operations.

    Product Parameters

    ITEM NO. WEIGHT (Kg) WLL(T) B.L(T) E±1.2 A±1 D±1 H±1 M±1 N±0.5 K±2 L±2
    8-SLR015-6 1.09 1.6 6.4 63.5 39 18 31 25.4 18 120 163
    8-SLR015-8 1.09 2 8 63.5 39 18 31 25.4 18 120 163
    8-SLR015-10 2.03 3.2 12.8 76 50.8 22 38 32.6 23 146 200
    8-SLR015-13 3.22 5.4 21.6 89 63.5 27 44.5 38.1 27 171 238
    8-SLR015-16 5.26 8.2 32.8 102 76 32 52 46 32 198 278
    8-SLR015-20 9.1 12.8 51.2 114.5 89 38 65 55.9 39 232 325
    8-SLR015-22 11.3 15.5 62 127.5 102 45 69 57 40 256 361
    8-SLR015-26 16.8 21.6 86.4 140 126 66.5 77 66 45 283 402
    8-SLR015-32 26.6 32.8 131.2 153.5 151.5 81.5 97.5 80 58 327 461

    Product Information

    01

    Super alloy steel-Quenched and Tempered


    Individually proof test at 2.5 times Working Load Limit


    100% Magnaflux Crack Detection


    Breakage test and fatigue test


    Suefac:Powder plastified


    Suitable for 3 or 4 legs G80 chain sling

    SLR-015 6

    Bule area :welded
    Yellow area : forged
    Bigger length,bigger width

    Advantages of Master Link

    01

    1.High Strength and Durability

    Master Links are forged from high-grade alloy steel, such as Grade 80 or Grade 100, which provides excellent strength and resistance to deformation. This makes them ideal for heavy-duty lifting applications.

    SLR-015 5
    01

    2.Wide Range of Sizes

    The 18-72mm size range allows for flexibility in applications, from light-duty lifting to heavy-duty industrial use. This ensures that the right link can be selected for the specific load and equipment being used.

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    3.Easy to Use and Install

    Master Links are designed for easy installation and use. They can be connected to chains and other lifting equipment with minimal effort, reducing setup time and increasing operational efficiency.

    SLR-015 4

    Notes

    1) Before each use, the operator must perform a safety inspection on the sling and use it only after being qualified;
    2) The sling must be inspected regularly by professionals (trained qualified personnel) every month;
    3) If it is found that the dimensional wear of the sling is greater than 5% of the original size, it must be replaced in time;
    4) If it is found that the amount of dimensional deformation exceeds 3% of the original size, it must be replaced in time to ensure safety. 

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