Block and Tackle Pulley System for Lifting Objects - SoB 4000LB Breaking Strength with 65 Feet of 3/8" Rope - 7:1 Lifting Power - Heavy Duty Rope Hoist Pulley System for Garage Warehouse Construction

I got this to lift a/c units up into a ceiling. Light lifts and short distances. Worked like a charm. Runs smooth. Didn't tangle. I used a cleat to hold the rope while I was working.Will it lift 4000 lbs? Maybe, but not without a winch to pull the rope. What could I hook it to that will hold 2 tons plus a safety factory of 2? Dragging something I might give a try. That brings me to why I replaced the rope.For the price I would buy again.A 3/8" twisted nylon rope is plenty strong but nylon stretches a lot. If I have 4000 lbs of tension on it what I've made is a giant slingshot. If something breaks there will be parts flying about. I put a 3/8" by 100' Dacron climbing rope on it. The Dacron rope doesn't stretch and recoil the way nylon does and I got some more lift length. The rope did cost as much as the pulley system but safety first.

As delivered, I'd rate it 2 orf 3 stars (see others' low-star reviews for all the reasons). The reason I ordered it is that to buy a high-quality 4-sheave block and tackle would have cost a LOT. With this, for about $20, you get the basic components that can be cheaply modified to make a pretty good system. One thing I was pleasantly surprised about is that the blocks were a lot bigger than I imagined: they are about 4.5" long and 2.5" wide. Here are the most important mods I made:1. Replace the rope with a less-stretchy, less twisty rope. I bought a 70' length of 1/4" "starter cord".2. Replace all the regular nuts with nylon locking nuts. You'll need an additional 6 of them if I recall correctly (they are metric, 8mm)3. Sand the outer edges of the pulleys to make them smoother for less friction.4. Add an 8mm washer to each side of each pulley and each spacer. You'll need 48 8mm washers to do this. This is really important, since it greatly reduces friction on the pulleys.5. To accomodate the extra width caused by inserting the washers, you'll need to replace the 3 bolts in each block with 8mm bolts that are 90mm long. So you'll need 6 8mm x 90mm hex bolts to do this.6. Use silicone lubricant to lubricate the pulleys and their washers.7. Tie the end of the rope to the bottom of the upper block to get an 8:1 advantage instead of just 7:1.IMPORTANT NOTES:(1) If you get the model where there are 2 dimples on each sheave plate, you must orient the pulleys so the side with the smaller hub is facing the dimples.(2) Don't over-tighten the lock nut on the two pulley bolts, or you'll squeeze the pulleys between the sheave plates, causing unacceptable friction.That's about it :-)

I was using an LVL as a subfascia for a porch and working by myself. The LVL was 9" wide and 25 feet long and so pretty hard to manage on my own. I installed the block and tackle on my house and pulled one end up to a ledge at the approximate subfascia height and secured it. I moved the block and tackle to the other end of the porch and pulled up the other end of LVL into approximate location. I left the block and tackle in place so I could lift or lower the LVL as necessary while I nailed it off to my rafters.It worked really well overall and though it seemed like the ropes might get tangled they never did. I was raising the LVL about 16' off the ground which was the very limit of the block and tackle. I guess if you needed to raise some higher than that you'd either have to move the block and tackle higher or replace the existing rope with a longer one.I'm not sure if I'll ever need to use it again but at $32.69 it was totally worth it even for a single use.

-When you need to lift a few hundred pounds, but you are not going to use it very often and you can't justify spending a lot of money on a high quality, heavy duty, system.-This is NOT good for "real" work. People are posting pictures where they've tried to haul logs, lift building materials, etc and are upset because "the darn thang broked!" THIS COSTS $19 PEOPLE! IT IS NOT MEANT FOR HEAVY DUTY USE DESPITE THE LOAD RATING.It is PERFECT for me because my hobby is home brewing and I sometimes need to lift a full 160 lb beer keg. This has a ratio where I only have to pull around 20 lb to lift a full keg. I don't use it very often, so I couldn't justify spending a lot of money. $19 for a full system including rope is quite a bargain. This will probably last forever the way I use it. I'd love the huge lifting ratio because I can hold the rope in one hand and easily move the suspended keg into position with the other.This item is fantastic for this sort of hobby use.

I bought this to raise and lower ladder stands, and it works great, makes putting your stands in and taking them down a 1 man job.I needed a longer rope so I bought 100' of 3/8" rope, but that seems too large for the pulleys. Upon further investigation I found the rope is not 3/8" (.375") as described. If you look at one of the pictures it tells you the rope in 7.5mm which is .295", which I think is a more accurate size for this rope. I would guess the pulleys max. diameter rope is likely 5/16" (.3125") or 8MM.I would have given it 4 stars except for the inaccurate product description.

Worked well, whished someone offered one with more then an 8 ft lift.