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Any tool for arborists needs to be lightweight, durable and serve a variety of functions. The HYDRA fits that description by providing the functionality of a pulley with a rigplate. The HYDRA’s swivel top offers three connection points lined with rubber o-rings to grip carabiners tightly. These connection points were specifically designed for the rockO carabiner to avoid dangerous cross-loading.

The most simple use of the HYDRA pulley is on the rope bridge of the saddle, but it can be used in a variety of advanced ways. The Hydra is used in ascent systems, lanyard systems, fliplines, or as a redirect as shown below. In any configuration, the use of the HYDRA is greatly enhanced by the flexibility to add multiple connections and rotate when needed.

• Hydra Technical Notice (.pdf)
• Declaration of Conformity (.pdf)

• Combines a pulley, rigging plate and swivel all in one compact piece of equipment.
• Use on the saddle bridge, as a lanyard adjuster or in your climbing system.
• Eliminates twisting of the climbing line when used as a rolling attachment point on the saddle bridge.
• Rubber grommet-lined attachment points hold carabiners snugly to help prevent cross-loading.
• Pulley sheave uses high-efficiency bearing for smooth operation.
• Pulley body is machined from solid aluminum to increase strength and decrease weight.

Specifications:

• Part Number: P4
• Weight: 20 oz (575 gm)
• MBS: 2 x 14 kN=28 kN
• WLL: 2 x 2.5 kN=5 kN
• Max Rope: 13 mm
• Sheave Dia: 2.1(53mm)
• Certification: CE