Ultra-High Molecular Weight Polyethylene (UHMWPE) Soft Shackle

High-strength UHMWPE Soft Shackle, specifically designed for lightweight rope access, outdoor rock climbing, rope rescue, and maritime rigging systems. The entire piece is precision-crafted from aerospace-grade Ultra-High-Molecular-Weight Polyethylene (Dyneema / UHMWPE) using a dense, multi-strand hollow-braid technique, forming a robust, reusable closed-loop structure secured by a self-locking eye and solid stopper knot.

Features exceptional physical properties, including ultra-light weight, high strength, superior abrasion and cut resistance, chemical resistance (against strong acids and alkalis), low-temperature freeze resistance, and zero water absorption. It serves as a safe replacement for traditional metal carabiners, Maillon Rapides, or steel shackles when connecting ropes to anchor bolts, pulley systems, or webbing loops. Beyond eliminating the noise and risks of brittle fatigue failure associated with metal-on-metal impact, it significantly reduces the weight of carried gear, making it an essential upgrade for modern ultra-light climbing and rigging systems.

Key Features

• Superior Strength-to-Weight Ratio: Crafted from UHMWPE Dyneema fibers; the 3mm version weighs only about 4.5g with an independently tested breaking strength exceeding 20kN, while the 5mm version offers 30kN capacity, rivaling heavy-duty steel shackles.

• All-Around Metal Hardware Replacement: Soft and flexible, it eliminates metallic clatter, prevents metal edges from abrading ropes, and removes the risk of tri-axial loading failures common with rigid metal carabiners.

• Abrasion/Corrosion Resistance & All-Weather Adaptability: Highly resistant to UV aging, strong acids/alkalis, and saltwater spray. Its near-zero water absorption prevents icing in extreme sub-zero environments.

• Quick-Release Self-Locking Structure: Secured via a specialized end-stopper knot and sliding eye-loop; it tightens under load and releases instantly with a simple push after unloading.

• Two Specialized Specifications:

  • 3mm Model (Recommended 16kN / Tested >20kN): Ultra-lightweight (approx. 4.5g), suitable for lightweight rock pro, quickdraw connections, and auxiliary anchors.

  • 5mm Model (Recommended 30kN): Heavy-duty industrial fall protection, main rope hauling systems, and rigging connections.

Technical Specifications

• Primary Material: Ultra-High-Molecular-Weight Polyethylene (UHMWPE / Dyneema)

• Structural Features: Hollow-braid self-locking, openable/closable knot-and-eye closed-loop soft shackle

• Chemical Properties: Resistant to strong acids/alkalis, low-temperature resistant, UV-resistant, non-absorbent

• Applications: Climbing anchor connections, rope rescue pulley connections, lightweight high-altitude equipment, nautical rigging

Full Series Specification Table