Petzl NAJA – Adjustable Friction Saver / Cambium Protector

The Petzl NAJA is a friction saver designed for tree care, easily retrievable from the ground. Thanks to its integrated pulley, the rope runs smoothly through the anchor, making movement more efficient. The adjustable strap (with four length settings) adapts to various branch diameters and protects the tree during rope work.

• Designed for tree care – set your climbing line without damaging the bark.
• Integrated pulley improves rope glide and efficiency when moving in the canopy.
• Four adjustment positions to fit different branch diameters.
• Easy ground retrieval: retrieval ball (21 mm) and MINO accessory carabiner ensure smooth take-down.
• Compatible systems: primarily for DdRT/MRS; suitable for SRT/SRS when used according to instructions.
• Modular length: includes a 1.5 m high-visibility yellow strap; can be extended with 1.5 m or 2.5 m add-on straps (sold separately).

Intended Use

Anchoring a work rope in trees for arborist climbing and work positioning. Suitable for ascending, moving around the canopy, and rescue situations (two-person load permitted according to instructions).

Technical Specifications

Key Benefits

• Reduces friction and protects bark – extends the tree’s lifespan and reduces damage.
• Quick installation and ground retrieval – improves efficiency at work.
• Adjustable and modular – one device, multiple branch diameters.

Instructions & Safety

Always read the manufacturer’s user manual and follow applicable standards. Inspect the device and strap before each use. Use only when properly trained.