Next Return Previous

Climbing Technology

Amelia Quick'Up, Version A Quick'Up, Version B
Amelia Quick'Up, Version A Quick'Up, Version B
 
Quick'Arbor Quick'Arbor (Split)
Quick'Arbor Quick'Arbor (Split)

Overview


Amelia
(#1950, 1951)

Front View: Closed Rear View: Closed
Front View: Closed Rear View: Closed
 
Front View: Open for Rigging Rear View: Open for Rigging
Front View: Open for Rigging Rear View: Open for Rigging

Technical Details

I acquired this pair of ascenders from Knot & Rope Supply on Amazon.com in 2013. They are clearly Climbing Technology Amelia ascenders, but they were repackaged in Knot & Rope packaging.

The Amelia ascender is 189 mm. tall, 91 mm. wide, 32 mm. thick, and weighs 213 g.

The shell is a tall irregular shaped stamping made from 3.9 mm. aluminum alloy sheet metal. A rope channel is formed in the upper portion of one side and a smaller cam channel lies opposite the first. The rope channel is 15 mm. wide. A hole drilled through both sides of the cam channel accepts a 6 mm. rivet. The cam and cam spring are mounted on this rivet, along with a flat washer on each side of the cam. The handle below the cam has a soft "rubbery" two-piece hand grip riveted into place. The hand grip has four shallow finger grooves. A 15.0 mm. sling attachment hole is punched below the handle opening, and a 9.9 mm. hole is punched below and outside the first. A 15.9 by 18.9 mm. pear-shaped hole through both sides of the rope channel provide an attachment point just above the cam. There is a stamped cam stop that almost stops the cam from closing far enough for the cam to hit the inside of the rope channel.

The cam is a plated skeletonized steel casting. The cam has number of small conical teeth, all of which have their axes approximately in line with the corresponding radius from the cam pivot. The cam radius increases from 37 to 55 mm. over an angle of 42°, giving a 28° cam angle. The tooth pattern is (3.2.4)(1H1.2)^3(1.2.2), where the H stands for a 4 mm. wide, 6 mm. wide inverted subtriangular hole. A spring-loaded manual safety hook is attached to the side of the cam. The normal action of the spring holds the safety against the cam. When the cam is opened, the shell interferes with the safety hook, thus preventing opening the cam. If the safety hook is moved away from the cam (opposing the spring), it will clear the shell and the cam will open. At full open the safety can be released and the spring will hold the safety against the back of the shell. This provides a means of locking the cam open. A pin on the safety assists in operating the safety mechanism. A second, shorter pin rides against the rope channel when the cam is nearly closed. This pin assists in opening the cam by levering the cam open when the longer pin is pulled downward.

The front of the ascender is screened with "ROPE 8≤Ø≤13mm" and a rigging diagram under an up-pointing arrow. The rear is screened with "CE0639," "EN567," the CT logo, "Italy," a book-with-an-"i" icon, the UIAA logo, "Patented," and "0308" on the left ascender and "0309" on the right. The cam on the left ascender has "L1" in raised letters, while the right-hand ascender cam has "L2."

Comments

The following ascenders are all variations of the same basic design:

Image Ascender Manufactured Hand Grip Cam Safety Pin
Advanced Base Camp Advanced Base Camp 03/2005 Plain Smooth
Climbing Technology Amelia Climbing Technology Amelia 03/2008 Textured Smooth
Climbing Technology Quick'Up, Version A Climbing Technology Quick'Up, Version A 03/2014
  • Textured
  • Molded markings
Knurled
Climbing Technology Quick'Up, Version B Climbing Technology Quick'Up, Version B 01/2015
  • Textured
  • Index finger support
  • Molded markings
Knurled
Edelrid Elevator Edelrid Elevator 03/2005 Plain Smooth
Singing Rock Lift Singing Rock Lift 05/2010 (L)
01/2012 (R)
Plain Smooth

Climbing Technology also made a version of the Amelia for Repetto Sport, but I never acquired that version.

These are well-made ascenders and perform much like the Petzl Ascension. All sharp edges have been removed. The attachment points are simple yet well-rounded holes in the shell; even so, I would consider their small radius too sharp for directly attaching sling ropes. They are probably acceptably rounded for webbing, but considering the proximity of the attachment points to the main rope, I would recommend using a small maillon for most attachments in order to reduce the risk of sling abrasion. The lower attachment hole could theoretically have the same safety problems as the one on Clog Version A.

The upper rope attachment hole is located very close to the main rope. A carabiner through the upper attachment hole will probably drag on the main line. Note that such a carabiner will prevent putting the ascender on or off rope, so one's climbing system must be designed accordingly.

The safety is one of the easiest to use with one hand. It reminds me of the one on the Hugh Banner and the PMI Cat, but the ones on these are smoother. The "thumbing" feature is clever but does not work well on ropes larger than about 11 mm: the cam does not open enough for the down-sloping teeth to reliably miss catching on the rope sheath. I think it is better to simply grasp the ascender from above and lift the ascender in the traditional manner (unless, of course, you are one of those who prefers to climb Frog). The ribbed handle is comfortable enough for my large hands, but I don't climb by gripping ascenders at their handle.

The rubber handle grips have evolved with time. They are not particularly comfortable for me because the ribs are spaced poorly for my large hands. In addition, the handle on the older models is "too square" for my taste. A file can eliminate both objections, but I suspect that few people will find a need to modify theirs.

The cam is very well made. The cam stop is placed in a position where it will actually touch the cam if the ascender is off rope. Many manufacturers put cam stops in odd places where they can never touch the cam. I don't see much need for cam stops, most active cavers don't weight enough to bend their ascenders to failure by cam pull-through, and there is no need to shock load one's ascenders.

This ascender has the same pit lip disadvantage as the Clog and other stamped frame ascenders, although the reinforcing will help prevent bending.

I'm not sure the extra holes are needed at the base - except for the Petzl Pompe, I've never found a real need for a second hole, especially ones that are too small for a normal carabiner. Some people like them, though.

If you are looking for a stamped-frame handled ascender, this one (or any of the near-equivalents in the table) would make a good choice.


Quick'Up, Version A
(#2008, 2011)

Front View: Closed Rear View: Closed
Front View: Closed Rear View: Closed
 
Front View: Open for Rigging Rear View: Open for Rigging
Front View: Open for Rigging Rear View: Open for Rigging

Technical Details

I acquired my Climbing Technology Quick'Up, Version A as new-old-stock closeout items in 2015. The right-handed came from Croque Montagne and the left-handed from Expé-Spelemat.

The Climbing Technology Quick'Up, Version A is 189 mm. tall, 90 mm. wide, 32 mm. thick, and weighs 214 g.

There are two main difference between this ascender and the Amelia. There are markings molded into the hand grips on the Quick'Up but not on the Amelia. Second, the thumb pin on the Quick'Up is knurled.

The front of the ascender is screened with the CT logo, "climbing technology," and a rigging diagram beside an up-pointing arrow. The rear is screened with the tracking number ("0087-92-14" on the left, "0016-92-14" on the right), "CE0333," "EN 12841:2006B," "Rope ¤ 8≤Ø≤13mm," "100 kg," "EN 567:1997," "Rope 8≤Ø≤13mm," a book-with-an-"i" icon, the UIAA logo, "Made in Italy," "PATENTED," and "0713." The cam on the left ascender has "L1" in raised letters, while the right-hand ascender cam has "L2." The front of the hand grip has a depression with raised "QUICK'UP" and a CT logo. The rear has "left" (respectively, "right") and a CT logo, also raised in a depression.

Warning:
The weight ("100kg") screened on the Handle can easily be
less than the weight of a fully loaded caver.

Comments

The differences between the Quick'Up, Version A and the Amelia are minor and do not significantly affect performance.

The weight ("100kg") screened on the rear of each ascender can easily be less than the weight of a fully loaded caver. Although I know what this means, American courts may not, so I cannot recommend this ascender for heavier cavers or for expedition caving.


Quick'Up, Version B
(#2012)

Front View: Closed Rear View: Closed
Front View: Closed Rear View: Closed
 
Front View: Open for Rigging Rear View: Open for Rigging
Front View: Open for Rigging Rear View: Open for Rigging

Technical Details

I acquired my Climbing Technology Quick'Up, Version B from Expé-Spelemat in 2015.

The Climbing Technology Quick'Up, Version B is 189 mm. tall, 91 mm. wide, 33 mm. thick, and weighs 216 g.

Version B has a new hand grip design.

The front of the ascender is screened with the CT logo, "climbing technology," and a rigging diagram beside an up-pointing arrow. The rear is screened with the tracking number ("0087-92-14" on the left, "0016-92-14" on the right), "CE0333," "EN 12841:2006B," "Rope ¤ 8≤Ø≤13mm," "100 kg," "EN 567:1997," "Rope 8≤Ø≤13mm," a book-with-an-"i" icon, the UIAA logo, "Made in Italy," "PATENTED," and "0314." The cam on the left ascender has "L1" in raised letters, while the right-hand ascender cam has "L2." The front of the left hand grip has a depression with a raised the CT logo and "Made in Italy." The rear has "QUICK'UP" and an "L" in a circle. The right is similarly marked with the front and rear reversed, and an "R" substituting for the "L."

Warning:
The weight ("100kg") screened on the Handle can easily be
less than the weight of a fully loaded caver.

Comments

The new hand grip fits my hands better than the older one, but that is a minor personal preference.

The weight ("100kg") screened on the rear of each ascender can easily be less than the weight of a fully loaded caver. Although I know what this means, American courts may not, so I cannot recommend this ascender for heavier cavers or for expedition caving. Foreign manufacturers may not understand that American courts might interpret "100 kg." as an advertized safe working limit, even if that was not the intent.


Quick'Arbor
(#1976, 2289)

Front View: Closed Rear View: Closed
Front View: Closed Rear View: Closed
 
Front View: Open for Rigging Rear View: Open for Rigging
Front View: Open for Rigging Rear View: Open for Rigging

Technical Details

I acquired my Climbing Technology Quick'Arbor from Jim Goodall Equipment in 2014. I acquired another in 2017 as part of Bob Thrun's collection.

The Quick'Arbor is 222 mm. tall, 161 mm. wide, 57 mm. thick, and weighs 498 g.

The Quick'Arbor consists of two modified Climbing Technology Quick'Up ascenders bolted to a stamped plate. The Quick'Up ascenders are similar to the earlier version that I described above, so I'll use that description in gray and note the changes in black, as follows:

The shell is a tall irregular shaped stamping made from 3.9 mm. aluminum alloy sheet metal. A rope channel is formed in the upper portion of one side and a smaller cam channel lies opposite the first. The rope channel is 16 mm. wide. A hole drilled through both sides of the cam channel accepts a 6 mm. rivet. The cam and cam spring are mounted on this rivet, along with a plastic rope retainer. The rope retainer pivots on the cam axle. In the down position, a molded protrusion engages the oval hole through the rope channel, helping to hold the retainer closed. The retainer pivots upward to allow rigging. The handle below the cam has a soft "rubbery" two-piece hand grip riveted into place. The hand grip has four shallow finger grooves. A 15.0 mm. sling attachment hole is punched below the handle opening, and a 9.9 mm. hole is punched below and outside the first. A 15.9 by 18.9 mm. pear-shaped hole through both sides of the rope channel provide an attachment point just above the cam. There is a stamped cam stop that almost stops the cam from closing far enough for the cam to hit the inside of the rope channel.

The cam is a plated skeletonized steel casting. The cam has number of small conical teeth, all of which have their axes approximately in line with the corresponding radius from the cam pivot. The cam radius increases from 37 to 55 mm. over an angle of 42°, giving a 28° cam angle. The tooth pattern is (3.2.4)(1H1.2)^3(1.2.2), where the H stands for a 4 mm. wide, 6 mm. wide inverted subtriangular hole. A spring-loaded manual safety hook is attached to the side of the cam. The normal action of the spring holds the safety against the cam. When the cam is opened, the shell interferes with the safety hook, thus preventing opening the cam. If the safety hook is moved away from the cam (opposing the spring), it will clear the shell and the cam will open. At full open the safety can be released and the spring will hold the safety against the back of the shell. This provides a means of locking the cam open. A knurled pin on the safety assists in operating the safety mechanism. A second, shorter pin rides against the rope channel when the cam is nearly closed. This pin assists in opening the cam by levering the cam open when the longer pin is pulled downward.

The two ascenders are riveted to a stamped connecting plate that holds the ascenders about 100° from each other. The plate has three cutouts. The upper two suggest an up-pointing arrow, while the lower one is a 19.2 mm. wide, 20.2 mm. high attachment hole.

The front of the ascender is screened with the CT logo, an image of a handless footless person cut in half, "max 100 kg," and "Patented." The lower portion of the connecting plate is screened with another image of a handless footless person cut in half, "max 100 kg," and an "A" inside a circle. The rear of the right ascender is screened with the Climbing Technology logo, "climbing technology", "QUICK'ARBOR," and "Patented." The rear of the left ascender is screened with "0034 - 91 - 14," "CE 0333," "EN 12841:2006-B," "Made in Italy", a book-with-an-"i" icon, and "0713." The front of each hand grip has "QUICK'UP" and the CT logo molded. The rear have "QUICK'UP right" and "left QUICK'UP," respectively.

Warning:
The weight limit ("Max 100kg") screened on the Handle can easily be
less than the weight of a fully loaded caver.

Comments

They are well-made ascenders. Most of the comments made on the Amelia ascender (clearly an earlier version of the current Quick'Up) apply to the Quick'Arbor as well.

The connecting plate holds the ascenders at an angle. Some people will find that this makes the Quick'Arbor more comfortable than other dual handle ascenders such as the Jumar Tree, Kong Trender, Kong Twin, or Petzl Ascentree.

The rope retainer is the most interesting feature of this ascender. While it will not keep the rope from coming out in all situations, it will perform that function reasonably well in many. It is a nice safety feature, but don't bet your life on any gadget. The retainer latches well into the top carabiner hole. A carabiner will not fit in the hole if the the retainer is closed, but once one puts a carabiner in the hole, the carabiner performs the retainer's function.

The weight limit ("max 100kg") screened on the rear of each ascender can easily be less than the weight of a fully loaded caver. Although I know what this means, American courts may not, so I cannot recommend this ascender for heavier cavers or for expedition caving. A similar comment applies to heavier arborists.


Quick'Arbor
(#1990)

Front View: Closed Rear View: Closed
Front View: Closed Rear View: Closed
 
Front View: Open for Rigging Rear View: Open for Rigging
Front View: Open for Rigging Rear View: Open for Rigging

Technical Details

I acquired another Climbing Technology Quick'Arbor from Jim Goodall Equipment in 2015, and then drilled out the rivets to make a pair of handled ascenders.

Each separated ascender is 195 mm. tall, 90 mm. wide, 35 mm. thick, and weighs 225 g.

See the Quick'Arbor description for details on these ascenders and their markings.

Warning:
The weight limit ("Max 100kg") screened on the Handle can easily be
less than the weight of a fully loaded caver.

Comments

Unlike splitting a Petzl Ascentree, splitting a Quick'Arbor leaves a left-handed and a right-handed ascender.

The rope retainer is the most interesting feature of the Quick'Arbor, and was the main reason that I decided to cut one apart to make a "normal" set of handled ascenders. Quite frankly, I found the rope retainer to be more of a nuisance than it is worth. While it will not keep the rope from coming out in all situations, it will perform that function reasonably well in many, but so will good technique.

The weight limit ("max 100kg") screened on the rear of each ascender can easily be less than the weight of a fully loaded caver. Although I know what this means, American courts may not, so I cannot recommend this ascender for heavier cavers or for expedition caving. A similar comment applies to heavier arborists.