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Post by phil on Dec 25, 2017 18:00:05 GMT -5
used, inexpensive.
Thanks!
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Post by toiv0 on Dec 25, 2017 20:45:42 GMT -5
I have been looking for a laboratory crusher for years. Been threatening to make a tiny jaw crusher at some point. What is the size rock you want to crush?
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Post by rmf on Dec 25, 2017 21:01:55 GMT -5
years ago I saw an add in Lapidary Journal for a 2"x3" jaw crusher for $300 or $400. I bought it and the first time I used it I put in a Brazilian Agate nodule about 2"-2.5" and broke the housing on the bearings. I had crushed some smaller stuff down but that one piece broke the bearings. I called them back and they replaced the bearings and said that never happened before. The second time I used it after replacing the bearings I broke it again. I took it lock stock and barrel and threw it away. I purchased a Bico 5"x7" crusher for $8k. This is a true bench scale jaw crusher. BTW I was the first in my neighborhood to have their own crusher. The first crusher proved to me I needed a better crusher and it has been worth it to have a good one.
I am not a welder but if you make one, design it so the jaws can be replaced. they ware and I have had one that cracked in two it was about 3/4" thick. It appeared to be due to a defect in the plate steel but I had it several years so just ordered a new plate. I really like my crusher.
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Post by phil on Dec 25, 2017 23:49:27 GMT -5
I have been looking for a laboratory crusher for years. Been threatening to make a tiny jaw crusher at some point. What is the size rock you want to crush? 1 inch and smaller. Mohs 5 average. |
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Post by toiv0 on Dec 26, 2017 4:33:05 GMT -5
So 1 inch stone is what you are crushing? What is final product size. There is a small hand crusher called the crazy crusher, looks pretty cheap. www.crazycrusher.com/ |
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Post by rmf on Dec 26, 2017 12:58:25 GMT -5
I have been looking for a laboratory crusher for years. Been threatening to make a tiny jaw crusher at some point. What is the size rock you want to crush? 1 inch and smaller. Mohs 5 average. So how much rock do you have to crush? Have you checked St John's Rock Shop not too far from you. they use to have a crusher. Can you get them to crack it for you for so much a pound? I crack rock for people here occasionally. I also have a lot of crappie chert in my yard and have been known to make my own road gravel as well. BTW a jaw crusher crackes black walnuts really well but Hickory nuts just slide up and down in the jaws. Always trying th think outside the box. |
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Post by Pat on Dec 26, 2017 14:23:09 GMT -5
What’s wrong with a hammer and a gunnysack?
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Post by woodman on Dec 26, 2017 14:42:45 GMT -5
What’s wrong with a hammer and a gunnysack? Hard to find gunnysacks these days. I got a few and I watch them very closely! |
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Post by rmf on Dec 26, 2017 14:43:19 GMT -5
What’s wrong with a hammer and a gunnysack? There were several year where I had to hand crack over a ton of material each year and it takes a lot of time. I can crack 100 pounds in 10 min with a crusher |
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Post by phil on Dec 26, 2017 16:37:44 GMT -5
What’s wrong with a hammer and a gunnysack? I'll send you 100 pounds at a time and you can hammer them for me.... Several times a year...  |
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Post by phil on Dec 26, 2017 16:38:25 GMT -5
So 1 inch stone is what you are crushing? What is final product size. There is a small hand crusher called the crazy crusher, looks pretty cheap. www.crazycrusher.com/All the way down to powder, but is several size ranges.... Thanks! Looks nice, but $500 ? I need something down in the $200 - $250 range that has a fairly good throughput, adjustable results (powder up to 3/16th inch. Starting with 1 inch max chunks. Tried to find somewhere local to rent one, but no luck. |
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Post by phil on Dec 26, 2017 16:46:59 GMT -5
1 inch and smaller. Mohs 5 average. So how much rock do you have to crush? Have you checked St John's Rock Shop not too far from you. they use to have a crusher. Can you get them to crack it for you for so much a pound? I crack rock for people here occasionally. I also have a lot of crappie chert in my yard and have been known to make my own road gravel as well. BTW a jaw crusher crackes black walnuts really well but Hickory nuts just slide up and down in the jaws. Always trying th think outside the box. St Johns a good 6 hour drive.....  want to loan me yours? <grin> |
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Post by toiv0 on Dec 26, 2017 17:09:02 GMT -5
Did we find some gold?
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Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Dec 26, 2017 18:54:31 GMT -5
So 1 inch stone is what you are crushing? What is final product size. There is a small hand crusher called the crazy crusher, looks pretty cheap. www.crazycrusher.com/All the way down to powder, but is several size ranges.... Thanks! Looks nice, but $500 ? I need something down in the $200 - $250 range that has a fairly good throughput, adjustable results (powder up to 3/16th inch. Starting with 1 inch max chunks. Tried to find somewhere local to rent one, but no luck. Looks like that crazy crusher could be built for your budget. |
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Post by phil on Dec 26, 2017 22:58:42 GMT -5
Nah, that's too easy. I crush rocks for furniture inlay, aboriginal paint pigment, and whatever. |
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Post by phil on Dec 26, 2017 23:01:03 GMT -5
All the way down to powder, but is several size ranges.... Thanks! Looks nice, but $500 ? I need something down in the $200 - $250 range that has a fairly good throughput, adjustable results (powder up to 3/16th inch. Starting with 1 inch max chunks. Tried to find somewhere local to rent one, but no luck. Looks like that crazy crusher could be built for your budget. Not by me or at local welding shops... Can you make one? Wish I could, but don't have that kind of equipment. |
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Post by toiv0 on Dec 26, 2017 23:33:59 GMT -5
Cant get much cheaper than this
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Post by rmf on Dec 27, 2017 6:47:12 GMT -5
phil I am a little further away that 6 hrs. If you don't have much rock it might be worth it to send it. Though postage would cost more than crushing the rock. What size do you need. As you know a crusher makes a variety of sizes. My max jaw opening is about 1.5 inches my min is about 1/2" opening in the jaw. Anything that cracks flat can get through the jaw say 1"x4"x6" could go through the jaw. you either hit it with a hammer or recrack with all the too large pieces. I am guessing there is about 15% waste depending on how small you crush rock. The smaller the more fines. Though in the days before I got this there was a guy in Birmingham AL that had a hammermill. The waste (- 1/4") from that was 30% but he was real cheap at $0.10/lb and I did the work myself.
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Post by phil on Dec 27, 2017 19:00:03 GMT -5
phil I am a little further away that 6 hrs. If you don't have much rock it might be worth it to send it. Though postage would cost more than crushing the rock. What size do you need. As you know a crusher makes a variety of sizes. My max jaw opening is about 1.5 inches my min is about 1/2" opening in the jaw. Anything that cracks flat can get through the jaw say 1"x4"x6" could go through the jaw. you either hit it with a hammer or recrack with all the too large pieces. I am guessing there is about 15% waste depending on how small you crush rock. The smaller the more fines. Though in the days before I got this there was a guy in Birmingham AL that had a hammermill. The waste (- 1/4") from that was 30% but he was real cheap at $0.10/lb and I did the work myself. Thanks... I need to end up with 3/32 all the way to powder. Thanks tho! |
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Post by phil on Dec 27, 2017 19:01:21 GMT -5
Cant get much cheaper than this Yeah, but crushing 80 pounds a couple times a year all the way down to 3/32 and powder would kill me using that thing. |
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want to loan me yours? <grin>
Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
