Petzl ascenders are used in tree climbing around the world. The popular handled Ascension and the Pantin foot ascender are some of our most popular ascenders for tree climbing. All Petzl tree climbing gear is designed for top-performance and maximum safety and backed by a 3-year manufacturer guarantee.
The Zigzag mechanical prusik for arborists combines all the individual pieces of gear being used in doubled rope climbing into one slick device. The Zigzag functions like a prusik, slack tending pulley, and swivel all in one.
Friction is managed by running the climbing line through the linked "zig-zag" pattern of rings. The top ring is a lever, and pushing down on this lever releases pressure in the rings, and the climber descends - just like using a prusik cord. Release the lever and the Zigzag jams, stopping descent. The climber has control over the rate of descent through varying the pressure on the Zigzag lever.
Climbing on the Petzl Zigzag is just like climbing on your prusik and pulley, but with all of your hardware integrated into a single mechanical prusik.
The Petzl Ascension is our most popular handled ascender. The ergonomic design of the handle makes them nicer to use on long climbs. Toothed cam is easily engaged with a thumb lever. Two holes of different sizes provide attachment points for slings. Light-weight aluminum construction Makes a climbing system with the ascender foot strap and foot ascender.
Compact rope clamp can be installed one handed. Lower holes for connecting lanyards, upper hole allows a carabiner to be attached for self belaying or hauling systems. Toothed cam. 1/2" capacity.
Petzl’s new Ascentree double- handled ascender is the best way to get a two fisted grip on a line. Perfect for the secured footlock or the single rope technique, the Ascentree will accept 1 or 2 legs of rope up to 13 mm (1/2”). The toothed cams can be retracted for easy installation and removal. Holes in the frame above each cam will accept carabiners for attaching prusik back-ups and keeping the cams engaged.
The Petzl Footcord is a lightweight, compact, and easily adjustable foot ascender strap which can be girth-hitched directly to your ascender or used with a carabiner or quick link. The Footcord is a more compact footloop, as it is primarily cord with a reinforced webbing step. Adjustment of the Footcord is provide through a a tiny plate through which the cord passes. Pull through more or less cord to adjust the overall length of the strap to fit the tree climber. Cutting out bulky buckles and webbing let's this cord easily stuff into a pocket or pouch and brings the weight down to only 45 grams (1.6 oz). Petzl has really done a good job on this on - the minimal design and easy adjustment will make this a favorite for long SRT climbs.
Improved Croll remains the best chest ascender. When used with a chest harness, the croll keeps you upright and well-positioned. Lays flat on the chest and can be easily installed on the line one-handed. Safety catch keeps rope captured.
Croll has a 7/16" (11mm) Max Rope size.
Webbing strap enables correct positioning of the Croll chest ascender. Adjusts rapidly using the min double-back buckle. Back strap can be unclipped to remove the harness.
Replaces self-jamming knots like the prusik and Klemheist. The cam is a smooth bar, not toothed, which prevents the rope from being damaged when loaded suddenly. Because it accepts single or double rope, the Shunt is ideal for use in the secured footlock technique. 7/16" capacity.
Technical notice from Petzl for user's of the shunt as a backup device: Read the alert on Petzl's website.
These rope clamps have ribbed cams to protect the rope and can be quickly installed mid-line by removing the spring-tensioned pin. These are very compact and lightweight and move easily on the rope. The pin locks in place and is designed to resist accidental opening.
Microcender: 1/2” Rope Capacity
Macrocender: 5/8” - 3/4" Rope Capacity
The Tibloc is a tiny ascender which operates with the use of a small auto-locking carabiner. (Shown here on M18. The M18, M21 and M23 are ideal.) The toothed cam engages the rope when weight is put on the carabiner. The Tibloc is small and compact, and can be quickly installed midline, making it ideal for rescue. Chiefly used by climbers as an emergency ascender. 7/16" (8-11mm) capacity.
Click here to download and view Petzl's instructions for this product. (Large file. Right click and choose “save target as”. Requires Adobe Reader.)