Category: Rock Climbing Carabiner

Rock climbing carabiners are essential connecting links in a climber’s safety system. Used extensively in both traditional (trad) and sport climbing, they serve to connect ropes to protection, anchors, and other pieces of gear. They are also used for racking gear on harnesses. Carabiners are load-bearing connectors, and their strength is measured in kiloNewtons (kN). A carabiner’s rating refers to the minimum force it can withstand before breaking. They come in various shapes and gate types, each suited for specific applications.

• Shapes: Common shapes include oval, D-shaped, and pear-shaped (HMS/Klettersteig). Oval carabiners are symmetrical, centering the load. D-shaped carabiners are stronger due to load distribution along the spine. HMS/Klettersteig carabiners are larger, pear-shaped, designed for belaying with a Munter hitch or other belay devices.
• Gate Types: The primary gate types are solid gate (snap gate) and wire gates, and locking gate. Solid gate carabiners are robust and easy to handle while wire gate carabiners are lighter. Locking gate carabiners, such as screw-lock, twist-lock, and auto-lock, provide enhanced security by preventing accidental gate opening; these are crucial for anchor points and belaying.
• Strength Ratings: Carabiners have three primary strength ratings: Major axis strength (the load applied along the spine), Minor axis strength (the load applied across the gate when closed), and Open gate strength (the load applied along the spine with the gate open). Major axis strength is the most critical.
• Material: Most climbing carabiners are made from aluminum alloy for its strength-to-weight ratio.
• Standards and Certification: Carabiners must meet stringent safety standards, typically certified by organizations such as CE (European Conformity) and UIAA (International Climbing and Mountaineering Federation), ensuring they meet minimum strength and performance requirements.