(Hand Ascenders - Unicender - Lockjack - Mar Bar - Foot Ascenders - Rope Grabs )
Rope climbing with ascenders has been popular with rock climbers and cavers for years and is gaining popularity among professional arborists. WesSpur stocks a wide selection of ascenders, from the ergonomic Petzl Ascension to the easy to use Petzl Pantin Foot ascender, and even Double Ascenders for use with the doubled rope technique-- if you are looking for an ascender, you will find it here. We have specialty rope grabs like the Petzl Microcender and Gibbs Ascender for use as mechanical flipline adjuster available here. We also stock ascender foot straps, ascender sling sets, prusik loops, and nylon & spectra webbing loops so that you can make a custom ascending system to meet your needs. The Tree Climber’s Companion is an excellent resource for rope climbing and contains details on using ascenders and rope grabs.
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.
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 CMI Expedition ascenders combine CMIs experience in making durable, high-endurance climbing gear with a more comfortably shaped handle. Like all CMI products, this Ascender features a lifetime wear-out guarantee on the cams. Extra-large hand grip with holes for attaching slings or foot straps. Sold in pairs. Toothed cam. 1/2" capacity.
Chrome-moly steel ascenders are high strength,corrosion resistant, and have a lifetime wear guarantee on the toothed cams. The large size fits the hand more comfortably and has twin holes for attaching foot loops. Sold in pairs. 1/2" capacity.
Powerful grip attaches mid-line to doubled or single ropes. Can be used for secured footlock or with a foot strap. Ergonomic handle. and great design from a leader in rope climbing technology. 1/2” capacity.
The Unicender can replace friction hitches, figure 8s, and ascenders! In the doubled rope technique, the Unicender can be used as a mechanical split tail in place of a friction hitch. Because of the ease with which it advances in this configuration, it makes any rope climbing technique easier and faster. In the single rope technique, the Unicender takes the place of both ascenders and descender. When descending, the Unicender can be used in either the “squeeze to go” configuration like a friction hitch or the “squeeze to stop” configuration like a figure 8. This incredible new device works by snaking the rope through the device where smooth wear surfaces apply friction to the line. The Unicender advances easily and gives utmost control over the decent. The Unicender can be used with either 7/16” or 1/2” diameter line without changing any parts, can be easily installed midline.
The Lockjack is the only piece of hardware on the market that can totally replace the friction hitches used on climbing lines. The Lockjack works as both an ascender and as a descender for self-belay in the doubled rope technique (DdRT). The advantage of the Lockjack is that friction is applied to the rope with a smooth aluminum surface which causes less friction while climbing for an effortless advance, and a smoother more easily controlled descent. While climbing, the Lockjack tends slack by itself as the weight of rope below the climber pulls the line through the device. Works with 1/2” rope. Designed for use with Petzl Am’D (M21 and M18).
The newest innovation from ART (Advanced Rope Techniques), in the doubled rope technique even easier. In addition, the Spiderjack also allows finer control over friction during descents, making tasks such as limb walking even easier by permitting the user to vary friction more subtly than before. Smooth friction surface. 1/2” rope capacity. Designed for use with Petzl Am’D (M21 and M18).
Simply put, the Mar Bar ascender system is the most efficient and easiest to use canopy entry system in existence. Consisting of only 3 parts, it is fast and easy to set up and learn how to use. Often called the inch-worm method, ascending with the Mar Bar system is intuitive and energy efficient. By alternating between standing on the foot bar and hanging from the hand bar, it is possible to climb rope as fast and with as little difficulty as one can climb a ladder.
This complete Mar Bar kit contains the upper and lower bars, tether, and 4 CMI Ultrascecenders. You will also need a posi-locking carabiner, sold separately.
Used in connection with a handled ascender this device can make rope climbing much easier and less tiring. The climber attaches it to the ankle and stands on the Dyneema reinforced foot strap. the cam engages the rope, allowing the climber to effortlessly maintain position. The toothed cam is a trigger cam with a cleaning slot so that it works even on dirty rope. Quick and easy to install, and reduces the amount of effort needed to climb. 1/2" capacity.
Rope climbing is made easier by the CMI Foot Ascender. The addition of this boot-mounted device maintains tension on the rope, allowing for easier advancement of the main ascender, and promotes better use of body mechanics by keeping your body in an upright position. The body is crafted from anodized aluminum, and the hard coated cams carry CMI's exclusive wear-out guarantee, the same as our popular Ultrascenders ascenders. 1/2” capacity.
Reinforced nylon webbing strap attaches to an ascender with quick link (included.) These make a great addition to an ascender climbing system. See the Tree Climbers' Companion for information on ascenders & sling. Sold individually.
Set of heavy duty stitched nylon ascender slings. One piece has multiple attachment points and twin foot holds, the other multiple attachments and loops on each end. Designed for a climbing system using two ascenders.
The most compact rope ascender we've seen! Alloy cam with serrated teeth. Rate for single rope use only. Super compact, a great replacement for prusiks in ascending. Weighs only 2.19 grams (62 oz). 7/16" (10-11mm) capacity. 3,375 lb. (15 kN) breaking strength.
This ascender has an aluminum body and twin cams for installation on a doubled line. For use in the secured footlock climbing technique. Reduces the amount of effort needed to advance. Reinforced webbing connection point. Ribbed cams. Quick release pin locks into place and allows for quick installation and removal. Compact. 1/2" capacity. 5,000 lb. breaking strength.
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. The B54 Microcender has a 1/2" capacity, the B51 Macrocender has a 5/8" capacity.
Steel bodied rope grabs have removable locking pin for quick installation mid-line. Gibbs is famous for the high strength, quality engineering, and durability of their climbing products. Ribbed cam. The 3S has a 1/2" capacity, the 4S has a 5/8"-3/4" capacity.
The Rocker Rope Grab is a fall-arrest-rated rope grab which can be used to arrest a fall and can also be used as an ascender. A pretty ingenuous piece of engineering from ISC. Ribbed cam. 7/16” to 1/2”(10.5mm to 12.7 mm) capacity.
The Croll is a sleek ascender to be used with a chest harness and hand ascender. The upper hole is rectangular to allow correct attachment to the harness. Specially shaped to sit flat against the body of the user. Toothed cam. 1/2" capacity.
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.
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.)
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.
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.
Designed as an aid for climbing in the single rope technique, the chest roller helps by keeping the climber's torso connected to the rope. This enables the climber to recline comfortably without having to exert the stomach and arm muscles to keep the upper body close to the rope.
The chest roller harness is required in order to wear the chest roller. It is made of strong nylon webbing and has lots of padding and surface area to be soft and comfortable around the armpits and against the back.
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