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baub
20:27:48 Fri
Jan 24 2014

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A Late Christmas

This has been a rotten month. Frozen pipes, frozen washer, frozen hands, frozen fuel system on the backhoe I use for plowing snow. Electric bills, natural gas bills, gasoline bills, LP gas bills all add to the mess.
However, one bright thing happened. I went to the mailbox, which was totaled by the State snow plow and jiggerred with bungie cords, and opened it with expectations of more utility bills. I was not disappointed, sigh. There was however, a very bright note. A package from Steve Gaber containing some extra sluice matting that he had in his shop. I have been talking to these guys about various mining problems over the years and they have always helped me with ideas and and suggestions. Once again they came to my rescue with this gift, no obligations, no cost.
So I started sifting thru my e/m to find their addy to send a Thank You and saw the e/m they had sent me a month or so ago contaiing info on their new addition to their mining enterprise; milling, jaw and tabling equipment. I had breezed thru this before, making a few mental notes to further explore the site and maybe eyeball in person their wares, perhaps during a break this upcoming summer.
From what I saw, it appears to be targeted towards the small to medium hard rock miner.

Here's the addy: www.MBMMLLC.com

I think it bears a look.

b


  
popandsonminers
15:19:20 Mon
Jan 27 2014

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Re: A Late Christmas

Thanks for the kind words, Baub. Yes, Jason and I started looking for small scale ore processing equipment to run our own ore, about 3 years ago. Tried some of the small domestic jaw crushers, rollers and impactors and found them to be more suited to recreational needs rather than full time production.

So, we searched to to find heavy-duty equipment and have found sources for equipment for the small scale miner: jaw crushers, hammer mills and accessories, and we make our own shaker tables specifically for fine gold. It was a natural evolution that we offer this equipment to others and have been doing so for the last year or so.

Many of our customers are the subsistence miners overseas. These are the guys I designed the Popandson sluice for, so it's nice to be able to continue to help them with more productive equipment to reduce/eliminate the use of mercury and cyanide. And about half our customers are domestic and include miners, rock quarries, stone countertop waste recyclers and bottle crushers.

I'm glad to talk about hard rock mining and processing with like-minded folks, so feel free to give a call to talk or set up a time to come and visit us.

Best,
Steve Gaber
Mt. Baker Mining and Metals
360-441-7519

  
baub
19:47:12 Mon
Jan 27 2014

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Re: A Late Christmas

Steve,
You're welcome.
May get with you in late spring or so for a look at your wares.
I have a small table that works well for small runs, but am curious about the larger tables that you offer. Specifically how well do they do for very fine gold, say minus 200 and smaller. Pricing info too.
We have a impact mill that can run about 5tph if fed with 3/8ths minus, also one that like 3/4minus best. Do you have a jaw or flail that can put these sizes out?

Thanks,

b

  
rabbitt46
15:53:21 Tue
Jan 28 2014

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Re: A Late Christmas

Steve:
Will you be at the Gold Show, Monroe, WA in February?
Love to see your stuff on display.
:smile:

  
popandsonminers
17:16:21 Tue
Jan 28 2014

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Re: A Late Christmas

We're going to try for some shows next year. For now, we'll demo anything we have if someone wants to bring by some ore for trials. Or, to just stop by for a visit.

Our tables are designed for fine gold and will get a high percentage of gold to 200 mesh I'm not sure of the percent recovery at <200 mesh, but we have pictures of gold to 400 mesh caught on the table. The table has no bumps or jerks. Similar to a low frequency vibrating conveyor. A gentle motion moves the heavy material across the table in grooves, while the blonds flow down the slope to the tailings trough. We like to run <20 mesh on the table, and any larger gold is caught in a small sluice upstream of the table.

A 6" x 10" jaw will take your material down to 3/4" minus at 2 tons per hour, and a 16" x 12" hammer mill to 3/8" with the bar grates set fairly wide. Our standard bar grates are about 1/10", and produce 50% passing a 30 mesh screen to avoid overgrinding. This is quite an adequate commercial liberation size for many ores. Oversize can be screened and reground, if needed.

Thanks for your questions, and I'm glad to send a price list and tech sheet to anyone, with capacities for our jaw crushers, hammer mills and shaker tables. Just send me an email thru the website---

Steve Gaber
360-441-7519
www.MBMMLLC.com

  
baub
15:01:11 Wed
Jan 29 2014

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Re: A Late Christmas

Steve,

Just finished pulverizing and very slowly panning some samples. There's no gold in 100 mesh and larger sizes. It's barely visible with a 30x microscope. Any recommendations?
Please e/m me a catalog and price list or snail mail it, whatever's convenient.

b

  
popandsonminers
17:36:14 Sat
Feb 1 2014

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Re: A Late Christmas

Baub,

So all your gold is less than 100 mesh and you want to recover as much value as you can with gravity means? There are limits to how small of gold you can recover with a gravity system. I think there are two considerations: do you just want the gold, or do you want to recover the other concentrates/sulfides, because they also have values?

If you want to keep the heavy cons and sulfides for further processing, run your head ore slurry over a fine gold recovery table. It will separate the slurry and you will get maximum free gold for dore bars, and you will recover and save the cons for selling to a processor.

If you donít care about saving the cons and sulfides, you can run your head ore slurry thru a P&S sluice and get 95% of the gravity-recoverable free gold. It's cheap and simple. We know the P&S sluice gets almost all the gold to 200 mesh, and gets a good percentage of gold even smaller. We found that when we ran our hard rock slurry thru a sluice, it captured 95% of the gravity-recoverable gold. When we ran the P&S sluice tailings over our table, it only got another 5% gold.

  

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