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highlander
May 9, 2004, 1:57 PM
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Can't seem to find a kong block roll pulley anywhere. Anyone know of a place in the U.S. that has them in stock. Thanks for any help.
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epic_ed
May 9, 2004, 6:22 PM
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:lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:
You CAN'T. They are a figment of all of our imaginations. Kong does make them, but they don't allow any of their US distributors to carry them, nor can you buy them directly from their Italian based website. There are some European vendors that occasionally stock the Roll Block, but good luck getting them to send you one.
Barrabes.com is your best bet, but they are currently on back order. I have an order in with them for one of the Block Roll's, but it's been a few weeks and I'll be very happy if I see it before my Yosemite trip in June. Not to mention, I'll have paid over $130 for it by the time it arrives due to the shipping cost from Spain.
Ed
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highlander
May 9, 2004, 9:47 PM
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Thanks Ed, thats what I am running into. Guess I will just continue using the the petzl traxion.
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roc
May 11, 2004, 12:58 AM
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Liberty Mountain is the US distributor for KONG. I believe their web address is libertymtn.com. If they don't have it in stock, be prepared to wait a very long time. I think mine took about 8 months before they got it for me.
Good luck.
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timpanogos
May 11, 2004, 1:16 AM
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I must have been lucky, two sessions back, when I got mine from Barrabes.com - like ed said, I did pay for it - but they had it in stock at the time and I got it in short order
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epic_ed
May 11, 2004, 2:20 AM
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Just got a reply from them today and the one I ordered is in and shipped today. Woooohoooo! Not sure if that means they have a few in stock now or not, but it might be worth a call.
Ed
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ricardol
May 11, 2004, 7:09 AM
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is the kong block roll that good? --
i found my pro-traxion to be more than adequate ..
-- ricardo
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epic_ed
May 11, 2004, 6:01 PM
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I guess I'm going to find out. :wink:
Unlike you, I have been very unhappy with the Pro-Traxion. I think the pulley is too small and makes hauling a 1:1 load harder than it needs to be. I also had problems with the teeth of the cam not engaging the rope. I use a 10mm static haul line and there were no obstructions preventing the cam from grabbing the rope. I was not impressed. Hopefully, I'll have a Pro-Traxion for sale here soon.
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ricardol
May 11, 2004, 7:09 PM
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hmm .. interesting -- i read that about the pro-traxion (fails to engage) ..
but i never had it happen .. (maybe it was because of the steepness of the route) ..
my haul line is a BW 7/16" .. (thats 11.6mm i think) ..
maybe thats why it didn't slip on me -- thats one fatty haul line ..
-- ricardo
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timpanogos
May 12, 2004, 4:06 AM
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Ok, here's some of the reasons why the Kong is the deal.
1. The pulley wheel is huge - big advantage for heavy loads.
2. The Kong can be hung on a binner, face plate opens, and pulley loaded (with immediate load) is easy - with face plate snaping on binner after.
3. Full blown open ascender off the pulley makes for easier control of release/clamp than the traxion (it's the size of a Petzl basic ascender).
4. - maybe most important to solo - the kong has a 30kn to anchor (15kn per pulley side) load rating with ascender open. It has a 10Kn to anchor and 5kn per side rating with the ascender engaged.
What this means to the soloist is that you can load up your haul line in the combo - leaving the ascender open, but rope all loaded and ready - tie off the non-ascender end to your anchor - and now rap your haul line, with 15kn/30kn protection. When you undock the 200 pound pig - the haul is already loaded in the combo - you clean back up - engage the kong ascender - attach your handled ascender to anchor knotted side of the pulley and yank/jump what ever - to get the kong ascender to take the load and give you enough slack to untie the now free end of your haul line and haul away.
Afer all that - simply stated, you can safely rap on the thing.
Chad
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johnhenry
Jun 1, 2005, 9:08 PM
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You can find one here:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=50814&item=7160686573&rd=1&ssPageName=WDVW
Cheers,
john
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ricardol
Jun 2, 2005, 1:01 AM
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chad ..
.. the petzl pro traxion is rater for live loads also .. even with the cam engaged.
-- ricardo
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epic_ed
Jun 2, 2005, 1:57 AM
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In reply to: chad .. .. the petzl pro traxion is rater for live loads also .. even with the cam engaged. -- ricardo
Maybe for your narrow ass! :wink:
Just a joke...couldn't resist. I know we've had this discussion already.
John, is that your Block Roll?
Ed
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mesomorf
Jun 2, 2005, 4:03 AM
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In reply to: 1. The pulley wheel is huge - big advantage for heavy loads.
Someone please explain why a larger wheel is advantageous, mechanically.
Also, how much larger than wheel size X does another wheel have to be in order to actually feel the mechanical advantage in the real world.
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kimgraves
Jun 3, 2005, 12:37 AM
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In reply to: In reply to: 1. The pulley wheel is huge - big advantage for heavy loads. Someone please explain why a larger wheel is advantageous, mechanically. Also, how much larger than wheel size X does another wheel have to be in order to actually feel the mechanical advantage in the real world.
Hi,
This came up in a question I asked about the Usaba HogWaller. In that post I stated that neither I nor my physics professor could see why it would make a difference because this was a simple potential energy problem.
But we were both wrong. We had assumed a frictionless pulley but, in fact, friction plays a major part in the problem.
Let's say the friction on any bearing you choose is some constant, K. (This is, of course, not true in the real world, but it's a simplification that will show the point.) So, for every rotation of any pulley of whatever diameter, K friction is added.
A pulley (A) with diameter 1 has a circumference (pi*diameter) of pi * 1 = 1pi. According to our assumption one rotation of pulley A will have friction 1K.
Now pulley (B) with a diameter of 2 has a circumference of 2pi. B also has a friction of 1K.
So in order to pull up 2pi worth of rope on pulley A you have to spin it twice and acquire 2K worth of friction. So let's say you're leg hauling three feet at a time. You're pulling up the same amount of rope whether using pulley A or B. Pulley B, with diameter 2, will add 1/2 the amount of friction to your efforts than a pulley with diameter 1. Of course, the bigger the pulley the more effecient it is: e.g. a pulley of diameter 3 would be 3 times more effecient than A.
Now it's not true that all axles have a constant frictional coefficient. But they're close enough that the model still works. For example, the friction in pulley A would have to be 1/2K, while B remained K, for the two pulleys to be equally efficient.
So the moral of the story is to maximimize diameter while minimizing the friction of the axle.
Best, Kim
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megableem
Jun 3, 2005, 2:18 AM
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.
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renohandjams
Jun 15, 2005, 9:57 PM
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What is the difference between the Kong block roll and just the Kong roll, I'm a buyer and I'm not the familiar with the big wall aid. If anyone can tell me the difference. If they aren't the same thing, then that is correct that the KONG distributor catalog for the US doesn't have them.
Here are the details on the kong roll:
Retail: $16.55
Strength 5850 lbs
Sheave: Nylon
Axle 11mm
Max Diameter 11mm
Weight 77g
Polished
-Kenny (buyer)
------------------------
TradRack.com SuperStore
Free Email Accounts, yourname@TradRack.com, only 100 to give
Click here to see if you name is available
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epic_ed
Jun 15, 2005, 10:31 PM
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Looks like the Kong Roll is a simple pulley, where as the Block Roll is a compound pulley. Definitely NOT the same device.
Ed
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steezy
Jun 21, 2005, 5:17 AM
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Yard on it.
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pivaraaf
May 12, 2006, 3:29 AM
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For all the wall rats just now packing the car for the Valley:
I just purchased a brand new Kong Block Roll from getlostadventures.com for $120.56 which includes shipping.
The contact there is:
Marie Crawford
marie@getlostadventures.com
Office Manager
Get Lost Adventures.com
(909)744-9675
I ordered mine on Monday, and it arrived today (Thursday). Marie told me there were six available at their distributor.
If that source gets tapped out, these guys in Germany responded to an email I wrote saying they'd ship one. . . total cost $153. They wrote me back in English, which was pretty courteous.
Abenteuer-Box
Wilhelmstr. 25
D-72555 Metzingen
Tel.: 0049 - 07123 / 20347
Fax: 0049 - 07123 / 204646
E-mail: info@abenteuerbox.de
WebSite: www.abenteuerbox.de
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owens
Oct 20, 2006, 5:38 PM
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I bought mine at a thrift store in Portland for $45.00
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teth
Oct 20, 2006, 6:07 PM
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Cut and pasted from another forum. Yes, Dr. Piton is still out there, just not on this forum.
In reply to: Why not just use a Kong Block-Roll? [or is it a Roll-Block?] Superb all-in-one hauling device. Yes, the bigger pulley will permit easy hauling in theory however you will have to have a near-perfect setup on your inverted ascender to avoid the slippage you don't get with the Kong. I can get you one if you like, just email me. passthepitonspete at that hot place. |
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nefarius
Oct 20, 2006, 6:25 PM
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You can get them from Liberty Mountain, the American distributor for Kong. I just purchased a few and had them within a week.
The ProTraxion is crap. Period. Pulley is too small, it doesn't always engage the rope, sometimes disengages, and they frequently explode under weight and become unusable.
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