jdphillips73
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moving to 10 gallon batches... and need a pully setup.
Hi. Here's the setup I use. It's a ratcheting pulley from Amazon plus a single pulley block from a big box home supply store hanging from my garage door opener rail. The ratcheting pulley has a rated capacity of 75 pounds, and the additional pulley block really reduces the amount of force needed to hoist my BIAB basket full of wet grain. TBH, I only do 5 gal batches, so my grain bill was usually only ~ 10 - 12 pounds dry, but this rig could easily handle twice that much. If you needed longer cord, you could substitute 550 (paracord) for the stock cord. Edmoving to 10 gallon batches... and need a pully setup.
Here is mine. That is a heavy duty ratchet pulley from @Wilserbrewer with another swivel pulley hung off of it. Makes for a really easy pull. The awesome hoist frame itself was built by NorCalBrewingSolutions @Jaybird
How much did that run you including shipping?
I just toss a ratcheting tie-down strap over something that can bear the weight.
I have moved my brew location to the back of the garage, but this is my setup still today. This gets tied off at a rope cleat, which is very easy to use.
MS
2/16/2013 by Mad Scientist Brewhaus, on Flickr
How much travel does that give ya' ?
I like the multiple block and tackle type pulleys, I have used them for years hoisting boats in my garage. The major downside imo is that the live end must be secured to a cleat, and a mishap sends the grain bag splashing back into the kettle. I know with proper use and care this is avoidable, but for this reason I prefer a single ratchet pulley attached at the bag offering 2-1 mechanical advantage.
IMO the ratcheting security outweighs the mechanical advantage. Lifting isn't the issue as much the holding to allow the bag to drain.
I'm thinking of offering an option of a single pulley up top to the ratchet pulley as some have done in this thread.
Stay tuned
I'm thinking of offering an option of a single pulley up top to the ratchet pulley as some have done in this thread.
Stay tuned
Thanks for this thread....My first BIAB I puta folding ladder over the kettle and hooked the rachet to that..
Hi. I don't think that's exactly correct. If you look at the diagram below, the second pulley reduces the force required to lift the object by 1/2. EdYes, that is the idea exactly. However, it can be done more simply with a single attachment point at the ceiling. The rope is tied to the ceiling hook with approx a 6" tail where the secondary pulley is attached.
We all must realize that the second pulley will not provide any mechanical advantage, but just reverses the direction. To that end it may make it more convenient than just attaching the pulley at the bag and lifting the rope and bag simultaneously.
Hi. I don't think that's exactly correct. If you look at the diagram below, the second pulley reduces the force required to lift the object by 1/2. Ed
I agree with you Ed, but what I'm trying to explain is that the upper pulley is the optional pulley that merely redirects the force. A single pulley utilized in the lower position will still give 2-1 advantage using only one pulley. The upper pulley merely redirects the rope. If you watch the video, you can see the load only moves half the distance the rope is pulled for a 2-1 advantage.
I agree with you Ed, but what I'm trying to explain is that the upper pulley is the optional pulley that merely redirects the force. A single pulley utilized in the lower position will still give 2-1 advantage using only one pulley. The upper pulley merely redirects the rope. If you watch the video, you can see the load only moves half the distance the rope is pulled for a 2-1 advantage.
What actually matters is how many parts of line are attached to the moving pulley at the load, and not the stationary pulley at the ceiling, as the last piece of line to go over the stationary pulley is merely redirecting the line. A single pulley attached to the load will give 2-1 advantage, and a double pulley at the load will give a 4-1 advantage.
Gentlemen, I love this! Isn't great to be able to have a sane, rational conversation without fear of rebuke or mockery?!? What's really interesting is the change in the mechanics and dynamics by having the pull at the load vs pull at the anchor, and the impact of the total force applied to the anchor based on where the pull force is applied. By having two pulleys and pulling up at the lower pulley (pull at load,) you are actually creating a 3:1 leverage. The image shown by @jrstephens65 above would give you 2:1, by simply changing the pull point to the lower pulley and fixing the terminal point to the load, you create a 3:1 using the same two pulleys. As @cegan09 points out, you are replacing force required by adding distance of pull. Thanks for the wonderful discussion! EdNow that I see what you're arguing, you are technically correct. It matters how the fixed end and the first pulley are oriented. With the fixed end on the top, and the pulley at the bottom, you are right, pulling up already gives a 2-1. The second at the top doesn't increase anything unless you significantly change the routing and fixed end position.
I agree with you Ed, but what I'm trying to explain is that the upper pulley is the optional pulley that merely redirects the force. A single pulley utilized in the lower position will still give 2-1 advantage using only one pulley. The upper pulley merely redirects the rope. If you watch the video, you can see the load only moves half the distance the rope is pulled for a 2-1 advantage.
What actually matters is how many parts of line are attached to the moving pulley at the load, and not the stationary pulley at the cieling, as the last piece of line to go over the stationary pulley is merely redirecting the line. A single pulley attached to the load will give 2-1 advantage, and a double pulley at the load will give a 4-1 advantage.
Now that I see what you're arguing, you are technically correct. It matters how the fixed end and the first pulley are oriented. With the fixed end on the top, and the pulley at the bottom, you are right, pulling up already gives a 2-1. The second at the top doesn't increase anything unless you significantly change the routing and fixed end position.
Really cool electric hoists not withstanding, and based on the points from @wilserbrewer and @cegan09 I think I'll use a pull at the load with two pulleys giving me a 3:1 advantage like the diagram below. Thanks again. EdGentlemen, I love this! Isn't great to be able to have a sane, rational conversation without fear of rebuke or mockery?!? What's really interesting is the change in the mechanics and dynamics by having the pull at the load vs pull at the anchor, and the impact of the total force applied to the anchor based on where the pull force is applied. By having two pulleys and pulling up at the lower pulley (pull at load,) you are actually creating a 3:1 leverage. The image shown by @jrstephens65 above would give you 2:1, by simply changing the pull point to the lower pulley and fixing the terminal point to the load, you create a 3:1 using the same two pulleys. As @cegan09 points out, you are replacing force required by adding distance of pull. Thanks for the wonderful discussion! Ed
The simple inexpensive 1/4" ratchet pulley attached at the bag gives 2-1 advantage and is a great simple solution. To go beyond 2-1 advantage isn't of great appeal to me for the added complexity or $.
I've done 35 lb grain bills w/ the 1/4" ratchet pulley and that is about the max. The value of the ratchet pulley IMO is not to make the lifting easier, but rather allowing you to pause and let the bag drain as it is exiting the kettle. Getting a 35 lb grain bag out of the kettle is a slow process for me, a few clicks at a time.
I have been toying with the idea of getting one of these, but way overkill I think....
http://www.ebay.com/itm/600-lbs-Han...641154?hash=item5b26d6e3c2:g:n1oAAOSwGIRXcMfj
How do you get your bag down? Do you move your kettle out of the way or man-handle it away? I'm looking to improve what I got. For 27 pound dry weight, it's a bear to get it away from my system by myself.
Do you move your kettle out of the way or man-handle it away? I'm looking to improve what I got. For 27 pound dry weight, it's a bear to get it away from my system by myself.
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