The Jammy from Beal is an essential ally for all climbing and mountaineering enthusiasts. Designed to fit all rope diameters, it comes in three sizes: 35 cm, 50 cm, and 60 cm. Thanks to its flexible aramid cord with a polyamide sheath, it is ideal for making autoblocking knots such as the Prusik and the Machard. Certified EN566, it ensures safety and versatility in all your adventures.
Made with Technora aramid, the Jammy offers unmatched strength of 22 kN, even under intense heat from friction. Its robust construction withstands repeated bending for exceptional durability. The heat-shrinkable sheath protects the stitching, providing incomparable lightness with only 20 grams for the 35 cm version.
An essential for climbers seeking efficiency and simplicity.
Crafting autoblocking knots (Prusik, Machard)Securing rappels: Quick hauling
Extending a poorly placed anchor point to avoid a cantilever. Using a natural anchor: shrub, thread. Possible use as a sling. Compatibility: Suitable for all rope diameters, on one or two strands: Use: multi-pitch, mountaineering
Choosing the right length of Jammy according to your rope diameter is essential:
Jammy 35 cm: Prusik on two strands
Rope diameter 7.3 mm to 8.1 mm: 3 wraps
Rope diameter 8.1 mm to 10 mm: 2 wraps
Jammy 50 cm: Machard on two strands
Rope diameter 7.3 mm to 8.1 mm: 5 wraps
Rope diameter 8.1 mm to 10 mm, Beal recommends investing in a longer Jammy
Jammy 60 cm: Machard on two strands
Rope diameter 8.1 mm to 8.6 mm: 6 wraps
Rope diameter 8.6 mm to 10 mm: 5 wraps
Rope diameter 7.3 mm to 8.1 mm, Beal recommends investing in a shorter Jammy.