GM CLIMBING 32kN UIAA Certified Large Rescue Pulley Single/Double Sheave with Swing Plate CE/UIAA
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China. When I bought two double pulleys, one side of each of them seized after only being used on one side. I then purchased six single pulleys from a supplier in the United States (they are still Chinese products), but they appear to be in good working order.
A 15:1 ratio is the industry standard for life safety. There is one safeguard. That works out to 473 pounds. The standards for other uses vary, but they must meet the "two person" load standard. For example, a 5:1 ratio is required for technical large animal rescue. 1 safety factor is equal to 1,420 pounds.
The load rating is 32kN, which is a little more than 7,000 pounds. It can handle up to 13mm (1/2inch) kernmantle or wire rope without issue, though I expect it to wear out more quickly when used with nonmetallic rope or cable. The pulley's attachment point is most likely your weak point. Whether you use this pulley or something else, I recommend that you make sure your shackle is equally rated. For the record, we use this model for technical rescue and have over a dozen in service on various response units, all of which have proven to be completely reliable. (We make sure to keep them clean and use them within their load ratings.)
This pulley is made to work with ropes of greater diameter - Steel cable is not one of them. With a capacity of 32 kiloNewtons (i7194lbs), it's way too big for a home gym. This pulley is better suited to climbing, rescue, and arborist activities.
Selected User Reviews For GM CLIMBING 32kN UIAA Certified Large Rescue Pulley Single/Double Sheave with Swing Plate CE/UIAA
I disliked this GM double pulley because it is poorly made, has a lot of free motion around the rope pulleys, and the entire unit does not meet our satisfaction. I am the Chief of an Emergency Rescue Squad, and I got this product, checked it out, and I absolutely would not let any of my men conduct a high or low angle rescue with this equipment, in fact, I'm not even going to send it back for someone else to buy and possibly lose their life, so I took the Jaws Just stating that I will continue to use Petzl or Kong products. Thanks.
These pulleys are used by the Technical Large Animal Rescue Team. We've been using them for a while now, and we've relied on them in some pretty extreme situations, and they've never let us down. In high-risk situations, you need reliable equipment, and I'm confident in all of General Motors' hardware.
I bought them to create a mechanical advantage for the winch on my ATV and other applications, not to climb with them. I'm aware that it wasn't designed for this, and I'll take the appropriate precautions. I have some snatch blocks for my synthetic winch rope, but they won't fit anything thicker than 1/4" rope, and the winch rope is only 50 feet long. I have an old 150' rappelling rope in great shape, but due to its age, I don't think rappelling with it is a good idea. I've tested the mechanical advantage by pulling my ATV up a slight incline with these pulleys, and everything works as it should (according to a YouTube video, I'm getting a 9:1 ratio). Using four pulleys, there is a mechanical advantage. These pulleys appear to be well made, as the 12mm rappelling rope runs freely and smoothly through them. The rope should break before the pulleys, according to the rated specifications. In a climbing/rescue situation, would I put my life in the hands of this pulley? I'd have to say yes based on my observations thus far. We'll see how long they last in my application. I won't be upset if I break one and have to replace it because of the low price.
In a 5: I've used it a couple of times. To haul limbs and logs up a steep side of a ravine, I used one pulley system, which is plenty sturdy and fits the 7/16ths rope I use perfectly. The becket is useful for closing a system by connecting one end of the rope. One major blunder I made was assuming that these would be prusik minding. I work with a number six. As a progress capture, I used a 5 mm Sterling hollow block prusik (which is a fantastic item), but the loop and the entire prusik knot got snagged in and around the pulley. I had to come up with a quick and dirty solution by threading a short length of electrical wire through the holes in the side plate and bending it to form a stopper just over the rope. br>The sheaves roll smoothly, but they don't rotate freely, only rotating a couple of times when given a good spin. Even so, I'm not sure they add much to the system's friction. br>I lubed them as best I could (which wasn't easy or even possible, as far as I know). Is it possible that the bearings have a seal? ) using Teflon bike chain lube Although the open design saves weight, it poses a problem when working in areas where they may come into contact with wet or sticky ground, picking up dirt and debris. Although they are relatively easy to clean, fine grit and dirt can still get trapped inside. br>Sturdy enough for most lifts and pulls, except industrial-sized ones.
" When compared to other block pulleys, this is a great value. I bought two of the rescue pulleys to make a four-pulley system. a factor of four (4X) mechanical prowess The ropes are easily attached to the wheels thanks to the moveable plates. This helped me lift a horizontal "I" beam weighing more than 300 pounds. The lifting of the beam required very little effort. The entire setup is simple to store and transport. My background is in the broadcast industry, where I assemble experimental antennas. The 32KN easily outperforms much heavier and more expensive block and tackle.
To pull loads and lift them, I chose the GM Climbing Pulley. I'll use these to pull large loads by hand using the reduced force required; they won't pull SUVs out of the mud, but they will work on a lighter ATV if properly rigged. Instead of the paired pulleys that are advertised as a block and tackle set, I purchased four of these. Because the carabiner, rope, or strap you use to anchor the pulley could be the weak link, you should use ups. Individual pulleys can be anchored to their own anchor, increasing the overall system's capacity and preventing the anchor point from being pulled out or a paired pulley from breaking. These pulleys can handle rope up to 1/2" in diameter. The pulley wheels have a large diameter, which reduces friction and stress on the rope as it rotates. I looked at a lot of pulleys from different places, including rock climbing stores like REI and other outdoor gear stores. For the price and job it's supposed to do, this appears to be the best quality pulley.
I know it's not what they're supposed to be used for, and you're probably cringing, but I use these pulleys with my winch system on a 1100 pound Kawasaki Mule UTV. Because my winch uses rope rather than cable, it doesn't damage the aluminum spools or the pulley's side sheaths. I use two pulleys to make a three-to-one haul system (I've been vertical caving for 30 years), effectively doubling the power of my winch (Warn 1700). Of course, due to my obvious misuse of their intended purpose, they can no longer be used for caving or any kind of vertical safety work, so I labeled them retired and stored them away from my actual vertical gear. For my normal vertical systems, I prefer Petzl gear, but I have to say, these pulleys are just as well-built as my Petzl pulleys, and far better than other mainstream/more expensive pulleys.
I purchased several of these, as well as other pieces of equipment, in order to construct haul systems and various block and tackle riggings for working on my roof and moving heavy objects. After a few uses, the pulley is still going strong. Designed a Z-shaped structure Last week, Rig was called in to assist in the recovery of a UTV stuck in the mud. If I needed more, I would purchase more.
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