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Your cart is empty.Tactical Version with two Aztek Aztek Pulley Kit Tactical Version with black pulleys, rope and Prusiks pulleys, main rope (8 or 9mm), two Prusiks, a travel restrict Prusik. Strength as a system, even with 8mm rope, is 36kN. Here is a compact mechanical advantage system that continually amazes rescuers with its many uses and versatility. Some of the uses are as a pick off, travel restrict, adjustable directional, high directional guyline, high angle attendant tether, high angle litter scoop, load release hitch and much more. Both Aztek pulleys have their own color-coded Prusik and can be easily activated or deactivated. This means you can have the ratchet at either the top pulley or the bottom pulley. The special 3 on 2 Prusik cannot come off the rope, so the deactivated Prusik will stay ready to be used as soon as you need it. Complete systems from our dealers use sewn Prusiks and a sewn eye on the main rope, which makes things neater and more compact than knots. You cannot appreciate how smooth and easy use of the Prusiks is until you experience it. Because the Prusik only sees a fraction of the total load in an MA system, they don't get too tight and they are easy to release and very controllable. This system grew out of extensive use and experimentation of small MA systems by Ropes That Rescue. It is light years ahead of anything else. Strength as a system, even with 8mm rope, is 36kN. Breaking Strength (Each pulley): 2 x 9 kN x 2=36 kN Working Load: 2 x 2 kN x 2=8 kN Max Rope Diameter: 8 mm Sheave Diameter: 1.0” (25 mm) Certification: CE ALL BLACK
andrewwynn
Reviewed in the United States on August 29, 2016
'verified purchase'; i bought this via amazon but didn't buy the kit, bought the blocks and ropes separately; saves like $50 to $60.Reward innovation, buy the best to reward the inventors of progress. This set of pulleys are amazing in pretty much every way possible. There is a significant trade-off for size in that there is a lot of mechanical advantage lost when using small pulleys (where a theoretical 100# of weight should take 20# to lift with 5-to-1, in reality i've measured more like 30# force to lift 100#. (that's 66% efficiency) my hand-made pulley systems i've gotten closer to 24# (83%). That being said, i wanted a set of pulleys i could safely use for PEOPLE.These pulley are so small i put the set including 50-60ft of line and the snap shackles on each end into a small felt bag about 2qt size.The main trade-off off these pulleys is that you can't open the side to quickly load the line or change the line. (or detangle). The second 'hit' already mentioned above; the relative loss of force multiplication efficiency.i'm not sure what the working load on these is rated, but with on the order of 8000# breaking, I would be very comfortable lifting 1000# with these, maybe even double that; with 5-to-1, that's only 200-400# per line, it's not hard to find 9mm line with that kind of capability.when you add in the lines, and some way to hold them (snap shackles and d-shackles for me, carabiners for most), you're looking at a solid $300+ investment which is a tough pill to swallow when I can build a more efficient system for maybe $50-80 that is more convenient in that i can swap lines in less than 10 seconds (it's actually faster on my pulley system to take the lines off, re-set to a new start point and re-wrap the lines than to pull the moving tackle block to re-start with these). In spite, i'm very happy to have bought these, and especially for the non-genius non-inventor, these will be a home-run for anybody wanting to get some decent mechanical advantage in moving something heavy.with a theoretical 4 to 1 and 5 to 1 you can expect a real-world 3 to 1 and 4 to 1 (i measured 30-32# to lift 100# when adding on a 5th pulley to use 5 to 1 while pulling down); if you use it in 'lift' mode, efficiency goes up you can get 4 to 1 (i measured about 25# lifting 100#).The swivels are strong enough to hold my entire bmw X5, but i'm a little annoyed they don't swivel a little smoother, maybe the grease inside needs to get worked in; sometimes i need to manually rotate one of the blocks to get the lines to line up.for $200+ i'm annoyed that they don't include a second quick-release pin and charge $12 for a spare. Reminds me of lawyers charging for paper clips. yeeesh.I'm writing the review to give others who like me have been on the fence due to the price to give the confidence to pull the trigger, these are one of my prize possessions and i could no longer give up my cell phone than go back to the days before the Aztek pulley system.When i need to lift something heavier than 100-200# i can use my 1T chainfall with the 30 to 1 lift ratio or whatever it is (effortless; my 7 yr old son lifted a 400# load with it), or to get a higher mechanical advantage efficiency i'll have to build a hoist with larger diameter sheaves or wire rope. Until then it's just laws of physics that rob some of the force efficiency and that's the trade-off of a micro-sized rope hoist.Update: added some photos of using tonight to install my new microwave solo. It would be more difficult to install with two than using this pulley system. It held the load while I got the back locked in and started the screws that hold it. Also added a pic of how I use clipped into my tailgate latch to load 100# plus loads of tools into my BMW X5.
Kindle Customer
Reviewed in the United States on March 8, 2016
Very high quality and compact
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