If you are involved in sourcing, inspecting, or testing synthetic lifting equipment, you may have encountered a puzzling detail: upon inspecting the internal structure of a continuous endless Round Sling (EN 1492-2 / ASME B30.9) , the inner load-bearing core yarns are neatly bundled together using plastic adhesive tape. At first glance, buyers or field inspectors often ask: “Is adhesive tape strong enough for heavy lifting?” “Will the tape peel off or slip under tension?” “Is this a standard manufacturing practice in the USA and Europe, or a quality shortcut?” In this article, we will break down the engineering principles, standard international manufacturing procedures, and force-physics behind Core Yarn Bundling Tape —explaining why this method is universally trusted across global rigging production lines. Why Tape Will Never Slip or Impact Lifting Capacity？ To address safety concerns directly: the tape inside a round sling bears zero lifting load and cannot slip or fall out during ...
When choosing wire rope thimbles , have you ever wondered what makes DIN 6899 Type A different from Type B? Both types are used to protect wire rope eyes, but they differ in design and dimensions. Choosing the right type helps ensure a better fit between the thimble, wire rope, and connecting hardware. What Is a DIN 6899 Wire Rope Thimble? It’s a metal fitting that sits inside the eye of a wire rope or sling. Its job is to hold the eye in shape and keep the rope from rubbing, crushing, or bending too sharply where it meets a shackle, hook, or other hardware. Skip the thimble, and the rope ends up bearing directly against the connecting hardware. Every load and every bit of movement then works away at the eye, wearing it down and distorting it over time. DIN 6899 Type A vs Type B: What Are the Differences? DIN 6899 Type A and Type B are two commonly supplied wire rope thimble patterns. The main differences are their design profiles and dimensions. 1. Structural & Design Diff...