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4.75 / 5.0
4 Reviews
Treeworker Deluxe Knee Ascender The Treeworker Deluxe Knee Ascender is hand crafted in-house and designed to support efficient rope ascent in arbor...
Petzl Pantin CLICK Foot Ascender – Left The Petzl Pantin CLICK Foot Ascender – Left is designed to make rope ascents more efficient and less tiring...
Petzl Pantin CLICK Foot Ascender – Right The Petzl Pantin CLICK Foot Ascender – Right is designed to make rope ascents more efficient and less phys...
Petzl Croll Chest Ascender The Petzl Croll Chest Ascender is a compact and reinforced rope ascender designed to support efficient rope ascents in p...
Petzl Ascension Hand Ascender Right The Petzl Ascension Hand Ascender Right is designed for efficient and controlled rope ascent during professiona...
Petzl Pantin Catch The Petzl Pantin Catch is a dedicated accessory designed to improve rope retention when using a PANTIN foot ascender during rope...
Petzl Knee Ascent Kit The Petzl Knee Ascent Kit is a complete rope ascent system built to make SRS (Stationary Rope System) climbing more efficie...
Petzl Knee Ascent Clip Knee Ascender The Petzl Knee Ascent Clip Knee Ascender is a purpose-built knee ascender assembly designed to support efficie...
Petzl Knee Grab Ascender The Petzl Knee Grab Ascender is designed to make ascent using SRS techniques easier. Compatible with the SEQUOIA PLUS harn...
Petzl Tibloc The Petzl Tibloc is an extremely compact and lightweight emergency rope clamp designed for situations where a simple, reliable progres...
Petzl Replacement Elastic Band for Knee Ascent Kit The Petzl Replacement Elastic Band for Knee Ascent Kit is designed as a replacement component fo...
Petzl Replacement Webbing Strap for Pantin Click The Petzl Replacement Webbing Strap for Pantin Click is designed as a replacement component for th...
Petzl Knee Ascent Mounting Kit The Petzl Knee Ascent Mounting Kit is a mounting system designed for use with the Petzl KNEE ASCENT kit and KNEE GRA...
Climbing Technology Quick Step A Foot Ascender with Lock Out Lever - Right The Climbing Technology Quick Step A Foot Ascender with Lock Out Lever i...
5.0 / 5.0
1 Review
Climbing Technology Quick Step A Foot Ascender with Lock Out Lever - Left The Climbing Technology Quick Step A Foot Ascender with Lock Out Lever i...
Climbing Technology Quick Step Undersole Strap Replacement Kit The Climbing Technology Quick Step Undersole Strap Replacement Kit is designed to re...
Climbing Technology Quick Step Strap Heel Replacement Kit The Climbing Technology Quick Step Strap Heel Replacement Kit is designed to maintain re...
Climbing Technology Quick Roll Hand Ascender with Integrated Pulley - Left The Climbing Technology Quick Roll Hand Ascender with Integrated Pulley ...
Climbing Technology Quick Roll Hand Ascender with Integrated Pulley - Right The Climbing Technology Quick Roll Hand Ascender with Integrated Pulley...
Climbing Technology Cric Multifunctional Rope Clamp The Climbing Technology Cric Multifunctional Rope Clamp is a compact and highly versatile devic...
Climbing Technology Roll N Lock Multi-Function Device The Climbing Technology Roll N Lock Multi-Function Device is an ultra-light and compact solut...
Climbing Technology Quick Arbor H Double Hand Ascender The Climbing Technology Quick Arbor H Double Hand Ascender is designed to support efficient ...
DMM Tendon The DMM Tendon is a streamlined solution for lifting knee ascenders, designed to improve efficiency and consistency during rope ascent. ...
DMM Tendon Elastic 1.5M The DMM Tendon Elastic 1.5M is a genuine replacement component designed to support the ongoing maintenance of DMM Tendon sy...
Arbpro Gemini Spur Ascender - Left The Arbpro Gemini Spur Ascender - Left is a foot ascender designed to assist rope ascent while climbing with sp...
Arbpro Gemini Spur Ascender - Right The Arbpro Gemini Spur Ascender - Right is a foot ascender designed to assist rope ascents while climbing with...
Arbpro Gemini Foot Ascender - Left The Arbpro Gemini Foot Ascender - Left is a lightweight and versatile device designed to support efficient rope ...
Arbpro Gemini Foot Ascender - Right The Arbpro Gemini Foot Ascender - Right is a lightweight and versatile device designed to support efficient rop...
Arbpro Gemini Knee Ascender The Arbpro Gemini Knee Ascender is an innovative solution designed to improve efficiency and ease of movement during ro...
Arbpro Gemini Knee Magnetic Sling Upgrade Kit The Arbpro Gemini Knee Magnetic Sling Upgrade Kit is designed to enhance the functionality and ease o...
Arbpro Gemini Spurs Loop The Arbpro Gemini Spurs Loop is designed to enhance rope ascent when using Distel climbing spurs. Developed to work with ...
Arbpro Gemini Knee Magnetic Deluxe Harness Storage Assembly The Arbpro Gemini Knee Magnetic Deluxe Harness Storage Assembly is designed to provide ...
ISC Stryder Foot Ascender - Left The ISC Stryder Foot Ascender has been developed following extensive feedback from professional industry users. Du...
ISC Stryder Foot Ascender - Right The ISC Stryder Foot Ascender - Right has been developed following extensive feedback from professional industry ...
At Height Chest Ascender - Grey The At Height Chest Ascender - Grey is a professional aluminium chest ascender designed for efficient rope ascent...
At Height Left Hand Ascender - Red The At Height Left Hand Ascender - Red is a professional aluminium hand ascender designed for efficient rope asc...
Ascenders and descenders play a key role in modern arborist climbing systems, helping climbers move efficiently through the canopy while maintaining control and positioning at height. Whether ascending into the tree using stationary rope techniques (SRT), managing movement during work positioning or carrying out controlled descents, these devices can improve efficiency, reduce physical effort and streamline day-to-day climbing operations. Our collection includes professional arborist ascenders, descenders and rope access devices suitable for a wide range of tree climbing applications.
Modern climbing systems often combine multiple devices to create an efficient and versatile setup. Ascenders are primarily used to aid upward movement on the rope, allowing climbers to conserve energy during long ascents. Descenders are designed to provide smooth, controlled movement when descending or repositioning within the canopy. Some devices combine both functions, offering arborists greater flexibility and reducing the amount of equipment required within the system.
When selecting an ascender or descender, it is important to consider rope compatibility, climbing technique and intended use. Different devices are designed for specific rope diameters and climbing methods, while others may be optimised for SRT systems, work positioning or rescue applications. Understanding how a device integrates with the rest of the climbing system is essential for achieving safe and efficient performance.
The best device will depend on the climbing method and the tasks being performed. Arborists who regularly use SRT systems often prioritise efficient rope access and smooth ascent, while those focused on positioning and movement within the canopy may require devices that offer controlled adjustment and easy operation. Weight, ease of use, maintenance requirements and compatibility with existing equipment should all be considered before making a selection.
Ascenders and descenders are typically used alongside climbing ropes, tree climbing harnesses, carabiners and connectors, mechanical friction devices, friction hitches and prusiks and other professional arborist equipment. Ensuring compatibility across the entire climbing system helps maximise performance and user confidence when working at height.
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