12 best ascenders

Ascenders are essential tools used in the realm of climbing and outdoor recreation, particularly in activities like rock climbing, mountaineering, caving, and tree climbing. They are mechanical devices designed to facilitate the upward movement of a climber along a rope while preventing them from descending.Ascenders are a fundamental component of belay rigging and play a crucial role in ensuring safety and efficient progress during vertical ascents.

Key characteristics and functions of ascenders include:

  1. Grip Mechanism: Ascenders typically have a grip mechanism that clamps onto a rope when weight is applied from below. This grip allows the user to ascend the rope by pushing or pulling on the ascender.

  2. Teeth or Cams: Many ascenders feature teeth or cams that provide a one-way locking mechanism. When loaded, the teeth or cams bite into the rope, preventing the ascender from sliding downward. This design ensures that the user can ascend the rope with ease but can easily stop and hold their position if necessary.

  3. Handle: Ascenders are equipped with a handle that users can hold onto and operate to move the device up or down the rope. The handle is usually ergonomically designed for comfort and control.

  4. Attachment Points: Ascenders often have multiple attachment points, including a primary attachment point for connecting to the harness and secondary attachment points for additional gear or safety backup.

  5. Materials: Ascenders are typically constructed from lightweight and durable materials, such as aluminum or stainless steel, to withstand the rigors of outdoor use.

  6. Compatibility: Ascenders are designed to work with specific rope diameters. It's crucial to ensure that the chosen ascender is compatible with the rope being used.

  7. Versatility: Some ascenders are designed for use with single ropes, while others are intended for use with double ropes or twin ropes. This versatility allows climbers to choose the right tool for their specific needs.

In climbing scenarios, ascenders are often used for various purposes, such as:

  • Ascending Fixed Lines: Climbers use ascenders to ascend fixed ropes or lines that are anchored in place on the route.

  • Aid Climbing: In aid climbing, ascenders assist climbers in ascending sections of the route where traditional climbing techniques are impractical or too difficult.

  • Rescue Operations: Ascenders can also be employed in rescue operations to ascend or descend ropes to reach injured or stranded individuals.

Proper training and familiarity with ascender usage are essential for climbers and outdoor enthusiasts to ensure safety and efficiency during vertical ascents. Additionally, regular maintenance and inspection of ascenders are crucial to ensure they function correctly and reliably in high-stress situations.

Below you can find our editor's choice of the best ascenders on the market
  

Wild Country Ropeman 1 Ascender

Wild Country

Based on 1 reviews Check latest price

Product description

Wild Country Ropeman 1 AscenderWith impressive range for rock, alpine, winter, sport and mountain climbing, the Wild Country Ropeman 1 ascender keeps weight down with an alloy cam that is easy to release, even under light loads.

  • STRONG: Hot forged side plates, alloy cam, high strength stainless steel axel, stainless steel cable leash
  • USEFUL: Use for bow hunting tree stand, climbing, caving, self rescue, prussiking, pulleys, mouflage, blocks and much more
  • SMALL AND LIGHT: At 21g or 2.1oz it is easy to add to any gear rack without sacrificing a lot of weight
  • FLAT CAM: The flat cam makes it easy to release even under light loads as well as helping extend rope life
  • Wild Country

User questions & answers

Question: Can you use the Ropman to rappel
Answer: No. Please don't try and use this device to rappel. It is an ascender. It shouldn't be used for descending as you're highly likely to hurt yourself extremely badly if you do.
Question: Will it work with 3/8" double braid rope
Answer: I am using a multi strand jacketed rope in 3/8 size. I don’t know about braided rope.
Question: Will it work with 3/8" double braided nylon rope
Answer: If you mean "work" I'll assume you're thinking that the 3/8" will fit in the ascender. The short answer is yes, as the WC Ropeman is engineered for 7mm to 10mm ropes. The 3/8" converts to 9.5mm. The quality of your rope choice has direct bearing on your safety and without knowing more about it, I can't recommend your rope and that ascender together as a safety line, restraint or back-up. Good luck.
Question: Difference in size between OS and 10-13 mm
Answer: OS is One Size, and is the same as the 10-13.

Paliston Climbing Hand Ascender for Rock Climbing Arborist (Right and Left) for 8~12 mm Rope

Paliston

Based on 170 reviews Check latest price

Product description



Product Description

Material: Aluminum Alloy

Rope diameter: 8 - 12 mm

Weight: 240g / 8.47oz

Maximum Loading: 4kN / 900lb

Color: Red (Left) / Blue (Right)

Certification(s): CE1019 EN567



●With ergonomic design of the handle, this ascender is possible to be used on long term climb.

●Made from hot forged aluminum alloy, it features lightweight but sturdy.

●Paliston hand ascender can be easily locked open or closed with one thumb due to the spring on the cam.

●Multi holes provide attachment points for connecting with other equipment.

2 Years Guarantee. You can definitely buy with confidence.

  • Paliston hand ascender is elaborately designed for ascending a rope, perfect for rock climbing, tree climbing, arborist and any other ascension activities.
  • The ergonomic construction gives you a large and comfortable handle to hold on and can be installed with one hand, also gives it an excellent purchase on rope from 8 - 12 mm.
  • The climbing ascender moves smoothly up the rope but cam grips rope securely when weighted. The rope cam is also applicable to hold even on dirty, muddy or icy ropes.
  • The ascender is easy to stowed when you've got your expected height or prepare to descend.
  • 2 Years Guarantee. Paliston strives to offers quality hand ascender with a reasonable price.

User questions & answers

Question: This is a pair for the price
Answer: Yes, you get left hand and right hand for that price.
Question: Will this ascender be strong enough to hold a 200 pound man
Answer: yes, the weight limit is 4kn which equals 900lb.
Question: How does this ascender compare with other brands? I found some ascenders and they look same
Answer: Sure they are the same quality, but this one gets a lower price
Question: I see 12mm is max rope size marked on device. So i must ask: should these work just fine on my 1/2" rope (12.7mm
Answer: we use these on 7/16- 11mm rope i think you need the bigger one for 13mm rope

Ascenders: High School for the Recently Deceased (Ascenders Saga) (Volume 1)

CL Gaber

Based on 179 reviews Check latest price

EPIC PEAK Right Hand Ascender - Strong Climbing Equipment with Ergonomic Rubber Handle and Steel Cam - Best Used with 8-12mm Rope - Sport Climber, Arborist, and Mountaineering Safety Tool with Decal

Epic Peak Climbing Gear

Based on 147 reviews Check latest price

Product description

Epic Peak Climbing Right Hand Ascender with Free Decal

  • ✅ SAFETY GUARANTEE - We are a trusted American brand for climbing products. Our ascender subscribes to international standards and has earned top safety ratings: CE 1019-435 EN 567:2013 and UIAA 2019.
  • ✅ SOLID FALL PROTECTION - While our ascender moves smoothly up the rope, it has a cam that grips the sheath securely when weighted. You can count on the large, sharp teeth to bite tightly into the rope.
  • ✅ ERGONOMIC HANDLE - Our handle provides a great grip while protecting your hand from friction. The rubber material prevents sliding and safeguards your hands from painful scratches and scrapes.
  • ✅ WORKS WITH MULTIPLE GEARS - This ascender has multiple webbing or carabiner holes, allowing 2 attachments in both upper and lower sides. It’s great for connecting with a system of gears!
  • ✅ EASY TO STORE - Designed for convenience, our climbing tool boasts optimal size and shape. You can easily store it away when you reach the summit, tree top, roof, or anything you wish to climb.

User questions & answers

Question: Says it weighs 0.3 oz. is this accurate
Answer: It weighs 9 ounces
Question: How much weight does it support
Answer: Zoom the picture and read the lebel.
Question: Will 1/2 inch rope fit
Answer: Yes
Question: Where is the country of manufacture
Answer: The brand is Epick Peack USA. I ASUMED IS MADE IN USA. I brought this producto. It is ok for the price. Also brought the stop descender and I do not recomend at all. Very bad quality for the body. The breake system works ok but at the first use dentings apear where the carabiner make contact.

PETZL Ascension Gold Ascender Yellow Right

PETZL

Based on 272 reviews Check latest price

Product description

Handled rope clamp for rope ascents, the ASCENSION features an overmolded grip and ergonomic upper part for a comfortable and powerful grip when pulling with one or two hands. The ASCENSION handled rope clamp has a wide lower hole for easily attaching two carabiners for a lanyard and foot loop.

  • The overmolded dual-density grips have an area for the index finger and a wide, supportive base to keep the hand from slipping. This shape ensures a comfortable and powerful grip, increasing efficiency when ascending a rope
  • Ergonomic upper part to maximize power when pulling with two hands
  • The safety catch allows the handled rope clamp to be installed or removed anywhere on the rope with one hand. It is easily manipulated, even with gloves
  • Wide lower hole allows the carabiners of the lanyard and FOOTAPE or FOOTCORD footloop to be easily attached
  • Yellow for Right-handed use

User questions & answers

Question: How much weight can this support
Answer: The Petzl ascension is certified to the EN 567 standard that says 4kN (900lbs) static load without destroying the device or rope. The key is static load. The device can withstand higher static loads to about 6kN (1350lbs), but any dynamic load applied from 4kN (900lbs) to 6kN even for a millionth of a second will eat your rope to shreds. The general rule is toothed cam devices eat rope at 4kN (900lbs), so don't use it as a rope grab, fall arrester, or progress capture unless you really know what your doing. The EN12841 type B standard tests show that it will handle dynamic loads over 4kN (900lbs), but it becomes very depended on what type / age of rope is used. Its a hand ascender for body weight (static loads), if your using it for something else consider another device.
Question: What diameter rope is this for? ca i use it with 12-strand arborist climbing rope, 1/2" by 150' blue ox rope
Answer: It will accept 8mm to 13mm rope - Arborist rope will be fine.

Lixada Rock Climbing Ascender Ultralight Fall Arrest Protection Belay Device Self-Locking 8-13MM Rope Grip Clamp for Outdoor Climbing and Rescue

Lixada

Based on 174 reviews Check latest price

Product description

Reliable Ascender from Lixada.



★ CE 1019 Certified. 



★ HIGH GRADE MATERIAL - LIXADA rock climbing ascender is made from forged anodized aviation aluminum material with high strength, light weight, easy to carry and the security of testing and certification is more secure. Max bearing capacity is 220lb.



★ THE SAFETY DESIGN - The barrier sheets can stuck the rope automatically. When human body weightlessness tilt will play the effect of grasping rope and stop falling, it can alsways protect you.



★ ANOTHER PROTECTION - The connection hole of the rope grip is bi-directional and is connected to the lock to protect you. Working for 8-13mm diameter rope.



★ DIMENSIONS - (L x W): Approx 7.7*7.5cm / 3.0 *2.9in,The Weight Limited : 100kg / 220lb. Weight: 90g



★ Occasions - Reliable equipment for rock climbing, stopping fall. Application: Downhill Protection, Caving, Upwards Climbing Expand Protection, Rock cilmbing, exploring, rescue, engineering protection, aerial work and more.



Material: Forged Anodized Aviation Aluminum 



Max capacity: 100kg / 220lb



Weight: 3.2oz 



Size:  3.0 *2.9in

  • ➤ HIGH GRADE MATERIAL - LIXADA rock climbing ascender is made from forged anodized aviation aluminum material with high strength, light weight, easy to carry and the security of testing and certification is more secure. Max bearing capacity is 220lb.
  • ➤ THE SAFETY DESIGN - The barrier sheets can stuck the rope automatically. When human body weightlessness tilt will play the effect of grasping rope and stop falling, it can alsways protect you.
  • ➤ ANOTHER PROTECTION - The connection hole of the rope grip is bi-directional and is connected to the lock to protect you. Working for 8-13mm diameter rope.
  • ➤ DIMENSIONS - (L x W): Approx 7.8*7.5cm / 3.0 *2.9in,The Weight Limited : 100kg / 220lb. Weight: 90g
  • ➤ APPLICATIONS - Reliable equipment for rock climbing, stopping fall. Application: Downhill Protection, Caving, Upwards Climbing Expand Protection, Rock cilmbing, exploring, rescue, engineering protection, aerial work and more.

User questions & answers

Question: Will this work for a lineman’s rope
Answer: I use this as a chest Ascender. (11mm ladder safety rope) This ascender is best on a vertical line. I use a rope grab with a heavier U shaped aluminum body & cam for tree/pole flip line.
Question: Will a 12mm rope work with this
Answer: Yes! It is marked "8-13mm". I have used it with 11mm, 12mm &13mm ropes. That is 7/16" to 1/2" diameters.
Question: Can I lower myself with this device
Answer: No!!! It is an Ascender- as in: GOING UP!!! It will slide freely up a rope; But, It Locks if the eye hole is pulled downward. It is a safety device to catch you if you slip or fall. It can be used as a back-up device for a Descender. The silver tab on top when pulled toward the eye hole allows it slide down your rope with NO braking control. It works well as a Fall Arrest Device! It is a very compact & very light wieght! What you want is a Decender. Figure 8's; Figure 8's with ears are the least expensive. Search Amazon for "NewDoar Climbing Stop Descender" It is a hand controled Decender. Read the Amazon Page carefully. There is a lot of good information in the Listing; Questions & Reviews!!! Whatever hardware you buy; look for CE Certification- your life depends on it!!! I bought a 11mm(7/16inch) LOAD RATED CLIMBING ROPE to use with this descender (12mm & 1/2inch were too tight- same as in review). Be Careful & Keep Asking Questions! Knowledge is key to climbing safety! Ed.
Question: Will this stop me from falling
Answer: Hi! This is an ascender or could be used as a progress catching device, which means it is designed for a static load or a small slip (in its second function, as long as there is still some rope above you to lower the shock load). It is solidly built and easily slides up.

SZCQ SRT Climbing Hand Ascender Aviation Light Alloy Mountaineering Rock Ergonomic Rappelling Gear Equipment Left Handled Ascender Arborist Tree Climber Rigging

SZCQ

Based on 130 reviews Check latest price
  • Upgrade Hand Handled ascender, Black for right hand, Orange for left hand, Both UIAA and CE Certified, widely used for tree climbing, Single Rope Technique Climbing (SRT climbing) and tensioning / rigging / hauling / pulley system.
  • SOLID Rubber Ergonomic Handled Ascender Safety Catch - No more slippery! ☆☆☆ Rather than metal material, the safety catch made of solid rubber allows any operator to easily manipulate the cam system with thumb. Increased friction let you have a firm control even with thick gloves.
  • ERGONOMIC Thermo-Molded Rubber Handle! ☆☆☆ As we know, right grip makes the highest efficiency of force. The ergonomic thermo-molded rubber handle and its ample inner space provide excellent comfort according to your grip habit to keep from fatiguing even in a long time single rope climbing.
  • POWERFUL Stainless Steel Cam! ☆☆☆ The function cam is made of stainless steel to have a firm grip even in icy or wet condition. Due to material's great property, cam can handle most situation and service for long.
  • This climbing ascendar adopts aviation aluminum magnesium alloy which is high strength, anti-rust, durable and withstand 4KN

Product features

Safety: CE 1019-435 EN 567:2013 ensures its security.

  • Light Weight Ascender:The aluminum alloy frame is light yet durable,Weighs only 0.52 lbs (237g)
  • Great Grip: Comfortable rubber handle adds the friction and protects climber's hand.
  • Solid Stainless Steel Cam: Made of stainless steel, rustproof and anticorrosion, can handle most situation and service for long.
  • Multiple Holes: For connecting carabiners and webbings. 2 hole attachments in both upper and lower side of ascender to let operator put to great use.

Solid Stainless Steel Cam

Due to material's great property, cam can handle most situation and service for long. Large teeth also works well even in icy or wet condition.

Solid Safety Catch

The safety catch has spring inside and allows operators to easily use it with a thumb. It ensure to quickly install and remove rope effortless.

Rope compatibility: 8~12mm

Hand ascender you can trust.Weight limited:140kg/ 308Ib,Breaking strength8.5KN.Tension:4KN,for 8~12MM Rope.

Hand ascender is widely used for tree climbing, Single Rope Technique Climbing (SRT climbing) and tensioning / rigging / hauling / pulley system.

  • ✔ Weight: 240g / 8.47oz
  • ✔ Certification(s) : CE 1019 EN567
  • ✔ Max load:4kN / 899 lbs
  • ✔ Handle cover:Rubber
  • ✔ Cam / pivot: Stainless steel
  • ✔ Main body:Aluminum Alloy
  • ✔ Color: Red -Right Hand

Great Grip Handle

Ergonomic rubber handle:Comfortable ergonomicrubber handle adds the friction and protects climber's hand,great grip and protects hand.

Suitable Size

The ergonomic thermo-molded rubber handle and its ample inner space provide excellent comfort according to your grip habit to keep from fatiguing even in a long time single rope climbing.

Wide Use

This hand ascender rope clamp is widely used for tree climbing, Single Rope Technique Climbing (SRT climbing) and tensioning / rigging / hauling / pulley system.rescue, aloft work, engineering, caving, etc.

Top Quality

Use the best material for your outdoor using

Red Right Hand

Red

Black Right Hand

Black

Orange Left Hand

Orange

Blue Right Hand

Blue

Ascenders: Skypunch (Ascenders Saga Book 2)

Based on 73 reviews Check latest price

Notch Jet Step Foot Ascender

Notch

Based on 78 reviews Check latest price

Product description

The Notch Jet Step's unique dual cam design results in lower spring tension and reduced drag. Toothless cams eliminate virtually all rope wear and provide increased grip strength on wet, muddy and frozen ropes. Lower drag from decreased spring tension provides efficient self-tending of the climbing line. Ambidextrous. Made in the USA.

  • Unique dual cam design results in lower spring tension and reduced drag providing efficient self-tending of the climbing line
  • Toothless cams eliminate virtually all rope wear and provide increased grip strength on wet, muddy and frozen ropes
  • Rope Diameter capacity: 8-13 mm
  • Ambidextrous - use on either left or right foot
  • Made in the USA

User questions & answers

Question: What is needed to attach this to the gecko tree climbers
Answer: This can be used but wasn't designed for Gecko climbers therefore operation & fit are not the best. A knee ascender is a better recommendation.
Question: Can this be used as knee ascender
Answer: Technically it can be, however we do not have a total knee ascender such as the HAAS that incorporates the Jet Step. You would have to create something that attaches the Jet Step in a way the HAAS or SAKA does & the liability would be on the user.
Question: Are the cams on the jet step stainless or aluminum
Answer: Aluminum
Question: Can this be attached to the gecko tree climbers
Answer: It can but it's not designed to & therefore operation & fit are not the best. A knee ascender is a better recommendation.

Climbing Technology Quick Step Foot Ascender, Right Foot, Orange

Climbing Technology

Based on 127 reviews Check latest price

Product description

Ascender for the right foot, when used in conjunction with an ascender handler a chest ascender, makes it easier and speeds up the ascent of a rope.

  • Cam / Lever Mechanism Fully Integrated Into The Body
  • Self-Cleaning Cam That Enables The Functioning Even On Dirty Or Icy Ropes
  • Fully Adjustable Webbing For The Correct Positioning On The Boot
  • Reinforcement On The Lower Side With A Tubular Webbing
  • Ideal For Working At Height And Tree Climbing, It Is Equipped With An Opening Lever Which Allows You To Keep The Device Open To Facilitate Insertion Of The Rope And Prevent It From Accidental Slipping Out""
  • Department Name: unisex-adult
  • Material Type: Alloy

User questions & answers

Question: How can i attach this to my spur, so that i don't need the strap, can it be attached by getting a longer bolt for my spur and sharing that spot
Answer: Hello! That is not something that we suggest doing, as this is created to be a strap-onto foot ascender. For any particular issues like that, we suggest contacting the manufacturer of the item, Climbing Technology.
Question: whats the difference between the 69 dollar and the 73.59 ? one has a solid orange strap and the other is orange and white
Answer: I have the cheaper one. Works ok and I really dont like it. I quit using it after the teeth on the thing started pulling on the treads of my rope. I'm sure it'll work fine with another type of rope. If you're going to get one look into the knee ascender as well or a different way to get up. I have the L-scroll by petzel linked with a carabiner and a small pulley. Good luck

NewDoar Rock Climbing Chest Ascender Abdominal for Vertical Rope Climbing CE Certified Rope Clamp for 8~13MM Rope

SUT

Based on 78 reviews Check latest price
  • [Safty Guarantee]: CE1019 & EN 567 ensures its security, Rope: for use with single ropes between 8 and 13mm.
  • [Light Weight Ascender]: The aluminum alloy frame is light yet durable, Weighs only 0.34lbs (157.6g), Weight limited: 140kg / 308Ib, Breaking strength: 4KN. Tension: 4KN, Length: 3.15 ’'(8cm) 4.57” (11.6cm) high.
  • [Powerful and Durable]: Solid Toothed cam made of stainless steel and with self-cleaning slot optimizes performance under any conditions (e.g. frozen or dirty ropes), Magnesium alloy forging cam has better resistance to corrosion. Magnesium alloy forging wear plate for improved durability.Multiple Holes: For connecting carabiners and webbings.
  • [Application Strategy]: Used with a BASIC ascender or with an ASCENSION handled ascender for rope ascents. Open the catch by pinching for simple, quick manipulation. NewDoar Chest Ascender with 2 hole attachments in both upper and lower side of ascender to let operator put to great use,excellent grip in compact shape, much improving ease of climbing with no need to grip rope with your hand.
  • [Wide Range of Uses]: for mountaineering, ascending a rope, tree climbing, indoor & outdoor climbing, rock climbing, outward band, fire rescue, arborist, pully system, working on the higher level etc.

User questions & answers

Question: How much weight can this support
Answer: The maximum breaking strength is 4kN/890lb.
Question: Does it lock when you let go
Answer: It has to be anchored by both ends, which made this option coimplicated for a novice like me . Try looking at the Petzel "shunt" as another option.
Question: Description says 8-13mm, picture says 8-12mm
Answer: It is 8-13mm. I run 1/2" all the time
Question: Can you use this on your safety rope as a fall arrest?usually what do use with the ascender
Answer: No a chest descender isn't designed for primary life support when climbing or during a fall. It's main function is to help keep your climbing rope closely confind to your chest when you are using it in conjunction with a hand asenceder attached to a foot loop and a foot ascender. Using all 3 together will give you the advantage of quickly ascending a climbing rope using the rope walking technique. The main drawback is that you can't quickly descend in an emergency situation. You will need some extra gear such as a Petzl Rig to changeover when you need to descend. Watch this video to see an example: https://youtu.be/xHjFD1qjf1Y

Product features

NewDoar Chest Ascender

NewDoar chest ascender is widely used for tree climbing, Single Rope Technique Climbing (SRT climbing) and tensioning / rigging / hauling / pulley system.

It provided excellent grip and release your hand. The sharp teeth clamp rope tightly to keep safe. This chest ascender helps smoothly climbing up.

Large Teeth

Large teeth on this chest ascender helps efficiently stop by rubbing rope and the chest ascender. The slot will exhaust sand to make sure it also works well in wet or mud conditions.

Solid Safety Catch

The safety catch has spring inside and allows any operator to easily manipulate with a thumb. Easy operating catch allows quickly install and remove rope from the hand ascender effortless.

High Quality

Made of high quality aluminium magnesium alloy including the black cam, high strength, light weight, abrasion resistance. Mature electro-plating technique casts never-peel-off color.

GM CLIMBING Climbing Hand Ascender (Right Hand and Left Hand) for Arborist Tree Climbing Rigging CE UIAA

GM CLIMBING

Based on 139 reviews Check latest price
  • GM CLIMBING Hand Handled ascender, Black for left hand, Red for right hand, Both UIAA and CE Certified, widely used for tree climbing, Single Rope Technique Climbing (SRT climbing) and tensioning / rigging / hauling / pulley system.
  • SOLID Rubber Safety Catch - No more slippery! ☆☆☆ Rather than metal material, the safety catch made of solid rubber allows any operator to easily manipulate the cam system with thumb. Increased friction let you have a firm control even with thick gloves.
  • ERGONOMIC Thermo-Molded Rubber Handle! ☆☆☆ As we know, right grip makes the highest efficiency of force. The ergonomic thermo-molded rubber handle and its ample inner space provide excellent comfort according to your grip habit to keep from fatiguing even in a long time single rope climbing.
  • POWERFUL Stainless Steel Cam! ☆☆☆ The function cam is made of stainless steel to have a firm grip even in icy or wet condition. Due to material's great property, cam can handle most situation and service for long.
  • MULTIPLE Carabiner / Webbing Holes! ☆☆☆ Ascender usually acts as a part of system which gathers different gears and let them have connecting. Different purposes decide the connection types. There are 2 hole attachments in both upper and lower side of ascender to let operator put to great use.

User questions & answers

Question: Please confirm the safe working load for this unit 140kg as equiped I am about 142kg with all my gear and this would be too much
Answer: The load on it can handle 800-900 lbs, I think that is 362 kg on a "fall". I would not worry at 142kg.
Question: How to order right hand ascender? The one says both left and right hand but during checkout it says left hand only
Answer: Click on icon below picture before you add to cart it gives options for left right and set
Question: Can both hands fit in this or should I get a left and right
Answer: These are left and right handed. They may look as one in the picture but they are separate ascenders. They work very well. But I prefer Petzl.
Question: Will these work on a 1/2 inch rope. 12.7 mm
Answer: I have used them on 1/2 inch rope.

Product features

GM CLIMBING HANDLE ASCENDERS

Solid Rubber Safety Catch - No more slippery!

Rather than metal material, the safety catch made of solid rubber allows any operator to easily manipulate the cam system with thumb. Increased friction let you have a firm control even with thick gloves. No more abrasion due to direct contact of safety catch and ascender body to have a longer service life.

Ergonomic Thermo-Molded Rubber Handle

As we know, right grip will stir up the highest efficiency of force. The ergonomic thermo-molded rubber handle and its ample inner space provide excellent comfort according to your grip habit to keep from fatiguing even in a long time single rope climbing.

Powerful Stainless Steel Cam

The function cam is made of stainless steel to have a firm grip even in icy or wet condition. Due to material's great property, cam can handle most situation and service for long. Note!Every time allow the ascender tend to move up while try to open the cam,then no damage will caused to rope sheath.

Multiple Carabiner / Webbing Holes

Ascender usually acts as a part of system which gathers different gears and let them have connecting. Different purposes decide the connection types. There are 2 hole attachments in both upper and lower side of ascender to let operator put to great use.

SPECIFICATION

  • Rope compatibility: 8~12mm / 0.315~0.472in
  • Net weight: 240g / 8.47oz
  • Breaking strength: 4kN
  • CE EN 567/ UIAA
  • General Applications: Single rope climbing; Process capture or tensioning assistant in a hauling / rigging system

MATERIAL

  • Ascender main body: aluminum alloy
  • Handle cover: rubber
  • Safety catch: rubber
  • Cam / pivot: stainless steel

MATERIAL

Ascender main body: Aluminum

Handle cover: Rubber

Safety Catch: Rubber

Cam / pivot: Stainless steel

HOW TO USE

How to Engage Rope on an ascender?

Hold the ascender with arrow mark upside (or in opposite to rope move direction); Pull Safety Catch outward and fix it by clipping to the body; Install rope between device body and cam; Release safety catch and make sure cam firmly bite rope.

How to remove rope from an ascender?

When remove rope from ascender, it’s vital and must kept in mind that ascender should have a tendency to move upward or in arrow mark direction while operator opens safety catch.  The action is to protect rope sheath from abrasion.

Working Principle

Cams installed allow device to move smoothly along rope upward or in the arrow mark direction but clamp to rope when pulled in the opposite direction.

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