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Auto-Braking Descenders

Self-braking descenders offer additional control and are useful in rescue, climbing, and as part of a basal anchor in SRS to allow lowering of the climber from the ground.

D4 PRO Descender by ISC

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Feedback gathered from highly qualified and experienced 'Pro' users highlighted a demand for a device which does not incorporate a panic-brake function. Enter the D4PRO! The D4PRO Descender is the same great Work/Rescue Descender, but without the panic brake.

This can be particularly useful on longer descents and in rescue/belay applications, where a broader 'sweet spot' is welcomed.

D4 PRO Details: WLL 529 lb (240 kg), weighs 24 oz, and works with ropes from 10.5mm to 11mm (7/16”).

D4/D5 Work & Rescue Descender by ISC

D4 - 7/16” (11.5mm) Capacity
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D5 - 1/2” (12.7mm) Capacity
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This Descender from ISC features some unique features for a handled descender. The handle is aluminum and coated for grip, and designed to rotate 360°, making it easier to use and switch between allowing the rope to run and locking the device. Each station in the rotation is accompanied by a “Click” so that you have the audio feedback in addition to the feel of switching the position. Features an anti-panic brake if the handle is rotated too far by an inexperienced user.

These devices have great video and manuals on the D4 descender page.

D4 Details: 5 1/2” x 3 1/4”, weighs 23 oz, and works with ropes from 10.5mm to 11.5mm (7/16”).

D5 Details: 240 kg/500 lb WLL, weighs 29 oz, and works with ropes sized 12.7mm (1/2”).

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Giant Descender by CAMP New in 2020!

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An innovative multifunctional descender developed to meet the demands of the most technical rope access and rescue specialists.

The patented internal mechanism combines with robust hot-forged construction and advanced ergonomics for exceptional control even with heavy loads (up to 210 kg for two person scenarios). In addition to its primary function as a descender, the Giant is also certified for use as a fall arrest device (i.e. during rope transfers), as an ascender with smooth upward glide, and as a belay device for climbing, making it the most widely certified rope tool of its kind. The actuating lever features an anti-panic system that locks the rope and arrests the descent in case of excessive pressure on the lever by the user as well as an extra lock off position so the worker does not have to tie off the device.

GriGri+ by Petzl

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Belay device with assisted braking and anti-panic handle, for all single rope diameters (8.5 to 11 mm).

The GRIGRI + is an assisted braking device designed for all climbers, for both indoor and outdoor climbing. It can be used with all single ropes (optimized for 8.9 to 10.5 mm diameter ropes) and is suited for intensive use. The reduction handle offers exceptional descent control. Two usage modes to choose from, depending on need: top-rope belay or lead belay. The top-rope belay mode and the anti-panic handle make for a more comfortable belay, making the GRIGRI + particularly suitable for learning.

I'D Small by Petzl

I'D Small
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Self-braking descender with anti-panic function for work at height and rope access work.

The self-braking I'D S descender is designed for work at height and rope access work. It has an ergonomic handle that allows comfortable descent control. The integrated anti-panic function and anti-error catch limit the risk of an accident due to user error. The AUTO-LOCK system allows users to easily position themselves at a work station without having to manipulate the handle or tie off the device. Once locked, the rope can be taken up without having to manipulate the handle. The safety gate allows the rope to be installed with the device remaining connected to the harness. I'D S is compatible with 10 to 11.5 mm ropes and allows handling of loads up to 250 kg.

I'D Large by Petzl

I'D Large
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Self-braking descender with anti-panic function for technical rescue.

The I'D L self-braking descender is primarily designed for technical rescue. It has an ergonomic handle that allows comfortable descent control. The integrated anti-panic function and anti-error catch limit the risk of an accident due to user error. The AUTO-LOCK system allows users to position themselves without having to manipulate the handle or tie off the device. Once locked, the rope can be taken up without having to manipulate the handle. The safety gate allows the rope to be installed with the device remaining connected to the harness. I'D L is compatible with 12.5 to 13 mm ropes and allows handling of loads up to 280 kg.

Auxiliary Closed Brake for ID

Auxiliary Closed Brake for ID

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These add-ons for the I'D give you additional options to manage our friction. The Open Brake may be used to increase the friction in accordance with the weight of the load and the diameter of the rope, or to release the rope at any time. The Closed Brake increases the friction as required for the load weight and rope diameter, and provides a constant redirect of the rope.

Auxiliary Open Brake for I'D

Auxiliary Open Brake for I'D

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These add-ons for the I'D give you additional options to manage our friction. The Open Brake may be used to increase the friction in accordance with the weight of the load and the diameter of the rope, or to release the rope at any time. The Closed Brake increases the friction as required for the load weight and rope diameter, and provides a constant redirect of the rope.

I’D Evac Auto-Braking Descender by PETZL

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Self-braking descender with anti-panic function for lowering from an anchor.

The I'D EVAC self-braking descender is primarily designed for lowering from an anchor. The ergonomic handle is specifically oriented for managing of a load from the anchor and offers comfortable descent control. The integrated anti-panic function and anti-error catch limit the risk of an accident due to user error. The AUTO-LOCK system allows the rope to be automatically locked without having to manipulate the handle or tie off the device. Once locked, the rope can be taken up without having to manipulate the handle. The safety gate allows the rope to be installed with the device remaining connected to the anchor. I'D EVAC is compatible with 10 to 11.5 mm ropes and allows handling of loads up to 250 kg.

RIG Descender by PETZL

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The RIG allows the user to move into position then easily stop where needed. This descender is compact and intuitive to use, making for smooth descents. A simple and effective alternative to more traditional descenders. The RIGs handle allows the user to switch quickly between descent and stopping for work. While the handle is in descent position, it will automatically return to belay position if the user lets go of it. This limits risks in case of involuntary operation of the handle, for example by user action, a falling object, etc.

The RIG is better-adapted for professional use. Pivoting cam facilitates taking up the slack in the rope. Can also be used to make a reversible haul system, and for short ascents (in conjunction with a FOOTPRO foot loop and an ASCENSION handled rope clamp). Single ropes between 10.5 and 11.5 mm in diameter (7/16 ). This device is for users that already have considerable experience. For professionals that are still learning technical rope access skills, we recommend the Petzl ID Descender, which has additional safety features, such as an anti-panic function and an anti-error safety cam. Weighs 400 grams. Instructions included.

Sparrow Descender by CT

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Self-braking descender for work on ropes, which allows the operator to lower themselves on the working line, to position himself on the working line and to ascend the same rope. Equipped with a braking spur that creates additional friction on the rope, when used during the descent, without the use of an additional connector. A multi-functional command lever with an automatic recall system allows the operator to descend at a controlled speed and stop the descent at the desired point without the need to tie off the device. An EBS safety system (Extraordinary Braking System) is activated if the lever is accidentally fully opened, reducing the speed of descent instead of increasing it.

Spider by SMC

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The SMC Spider is an Auto Braking NFPA T Rated Descender designed for work positioning and personal descent. The Spider provides person working at height the ability to easily maneuver and secure themselves while on the fly. Allowing users to easily load and unload from the device without having to unclip from their harness, it is an ideal descender for window washers, fire fighters and industrial workers who need a device that provides them with optimal strength and performance.

Accepts rope from 11 - 12.5mm in diameter, MBS 13.5kN (3,174 lbf), weighs 19.8 oz (562 g).

SV2 Basal Anchor by SMC

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The SV2 is an auto-braking descender with anti-panic function which is ideal for use as a basal anchor in SRS. For use with 11mm static rope.

This updated of the Spyder includes performance improvements targeted at rope access technicians, tower climbers and arborists. Optimized for 11mm rope, the SV2 limits loads on the anchor and the technician by slipping between 900 and 1500 lbf. This makes it a great choice as a basal anchor when you are rigging your ropes for ground-based rescue. Other improvements include a tied-off MBS that increased from 13.5kN to 18kN, a thicker, more ergonomic handle and re-worked braking function so it's gentler on ropes. The Spyder's reliable anti-panic cam geometry was retained to keep you safe.

MBS 4,060 lb (18 kN) • Max Rope Diameter 11mm (7/16”) • Made in the USA

CMC Clutch

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Introducing the all-new CLUTCH, the latest evolution in rescue and rope access hardware that enables the technical rope professional to do more with less. This multi-purpose device was designed and engineered in collaboration by two companies with a collective 90 year history in rope management under heavy loads: CMC, a company with roots in rescue and rope access, and Harken Industrial, a manufacturing company with roots in high performance sailing.

Designed for intuitive, efficient operation, ease of use and optimal control, the versatile CLUTCH is suited to a multitude of rigging operations:

  • Single wearable tool suited for efficient hauling, controlled lowering, smooth personal descent, easy ascending and belaying
  • Stainless steel ratcheting and rotating sheave provides efficient and audible progress capture
  • Rope loading/unloading is secured with an innovative double-latched side plate design that is independent of the devices attachment point
  • Anti-Panic brake and force limiting features ensure operational safety and overload protection
  • Machined aluminum chassis clad with stainless steel wear guards ensures lightweight durability
  • Integrated becket allows for direct connection of mechanical advantage systems
  • The only 10.5-11mm rope diameter compatible device certified to NFPA 1983 (G-Rated), ANSI Z359.4 and EN 12841/C, 341/2A, and 15151/8
  • The CLUTCH and CMCs G11 Lifeline can be used together to build NFPA G rated systems using 11 mm rope
  • Patented and Made in the USA
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