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polekaat
03:58:23 Wed
Feb 18 2009

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Re: New highbanker

Quote: tabwyo at 03:53:03 Sat Jan 31 2009

I was looking at a 5.5-6.5hp pump because I fully intend to be running a 2" dredge this summer. It's a simple thing to rig up a simple PVC bypass manifold to reduce the flow to a desirable slower rate. Yet still have the HP needed to run a 2" dredge nozel when needed.

Wich brings me to yet another question. And not just for you. First, what is the slowest GPM rate you could run and still be able to run a dredge with say... well hell, with the 2" dredge adaptor kit you offer (legnth of hose & sluice set as low as possile to reduce head)??? And if that rate exceeds your recomended 30-35gpm for optimum fine gold recovery. How would you compensate for the excess flow to still retain that super fine stuff????


You can reduce the flow on any pump without damaging it by just installing a recirculation loop with a globe valve from a wye on the discharge back to the suction side. You will also need a valve (ball, plug, gate, globe, butterfly.....whatever you have) between the pump discharge and your sluice/highbanker/dredge.

hope this helps...

Trevor

  
tabwyo
03:24:43 Thu
Feb 19 2009

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Re: New highbanker

I plan to do that and add in a "t" or two for extra hoses. In the end. my 6.5 is over sized for the two inch nozel. But I can use the extra flow as and aditional sprayer or to run one of my "kid works".

Kid Bankers = I help them set up on one of my old sluices and then they get to dig whatever the hell they want and run through it. They make edgucated guesses for the first couple buckets based offf what I have taught them. But after tha all bets are off. But they keep the gold and have a good little collection of their own.

  
Ben_Rumson
06:35:03 Sun
Feb 22 2009

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Re: New highbanker

I've been researching for a new 3" combo unit and was pretty well sold on the Keene 175. Bought all the parts for it separately from all over the country. I want the best price.
Main Parts are a P180 for a Honda 5.5 GX160 running 20 feet of 3" wood chip clear hose as it is more flexable then what I've been told standard dredge hose is. Keene suction nozzle.
I'm working a shallow creek that dry's up every summer but has a fairly shallow water table after the surface water is gone.
Gold ranges in size from sub -60 (I can see smaller with my Lighted 30x hand scope) to pickers classified with 12 mesh. Some are flat and really love to kite.
After getting no responce to several requests for qoutes on the 175 sent to several companies you've all heard of (Shrug) except AMD (I thought shipping to lower 48 might be prohibitive). I was reading this thread and decided if it preforms as stated that it was exactly what I'd been looking for. Big enough to move enough. Fine gold recovery. Compact for transport on my TW200 bike.
That said. I will let you know.
[1 edits; Last edit by Ben_Rumson at 06:36:34 Sun Feb 22 2009]

  
tenderfootminer
07:47:27 Sun
Feb 22 2009

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Re: New highbanker

kids works! me too lol i set up my mini highbanker for the younger ones funny they "raid " my pay dirt and actualy make some $ while learning the work ethics and pleasures of mining!great job ....ws

  
peluk
01:50:46 Mon
Feb 23 2009

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Re: New highbanker

Ben,I have used a Proline combo.My mistake besides having too much flat rock material to work,was that I had it sitting too high off the water.I should have dropped it right down on its adjustable legs to mimmick a dredge more closely.That would have helped eliminate constant plugups even with the flat rocks I ran into.

  
Ben_Rumson
05:29:47 Mon
Feb 23 2009

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Re: New highbanker

Thanks Peluk.
I found this reaserching and hope it addresses some of the problems associated with plugups.


http://goldadventures.biz/yahoo_site_admin/assets/images/DSCN3364.1733528.JPG

  
peluk
07:51:46 Mon
Feb 23 2009

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Re: New highbanker

Ben,a bar across the intake seems and seemed like it would be an improvement when i first ran into the problem.That bar in a notched slot(photo),looks like it is the result of a dredger's process of elimination and not a kneejerk reaction.
My thoughts were of a V-shaped grill for some reason or other.You might check the Honkoop site for a variety of ready made grills for various size suction nozzles as well.I wonder how a grill of bow shaped bars would work.It wouldn't allow the flat rock to get pinned by suction.

  
Ben_Rumson
16:55:35 Mon
Feb 23 2009

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Re: New highbanker

Ok. I follow. That will give me something to think about.
Thanks.

  
Ben_Rumson
21:39:06 Mon
Feb 23 2009

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Re: New highbanker

Remove handle. Bend center prong down and secure to nozzle with Hose clamp. Place outside prongs inside of nozzle mouth and adjust to desired distance in front of nozzle mouth.

http://www1.istockphoto.com/file_thumbview_approve/1159471/2/istockphoto_1159471_garden_claw.jpg

  
Prospect09er
15:10:58 Tue
Feb 24 2009

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Re: New highbanker

Ben, I like your idea. I was going to make a grate/rake to experiment with, but I’m gonna try this first. Way cheaper!
I’ll drill a hole just big enough to get the claw through and clamp the shaft to the nozzle tip.
[1 edits; Last edit by Prospect09er at 15:16:40 Tue Feb 24 2009]

  
Ben_Rumson
17:07:15 Tue
Feb 24 2009

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Re: New highbanker

Perfect.

  
tabwyo
20:56:40 Tue
Feb 24 2009

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Re: New highbanker

Just picked up a 2000gph 12v pump and charger so I can set up the G1 as a recirculator here at home. I have about 15 buckets of hand sluice concentrates in the back yard. I wouldn't mind knock that down to a more manageable volume.

Haven't had a chance to set up and run the unit yet. Possibly to tomorrow if the weather holds. I just finished getting the fittings for the water pump. So it's ready to go now. Don't have the tail sluice done yet either. I guess I need to get bussy.

  
tabwyo
03:15:32 Wed
Feb 25 2009

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Re: New highbanker

BTW, the idea behind running it as a recir unit at home is that hauling water just to sample in dry areas is a major PITA. I can hual about 20 five gallon buckets in the bed of my truck. I can get 4, 5g samples from 4 areas and get a pretty descent test out of it back at the house. When I home in on a deposit worth working in ernest I can get a full 20 bucket sample or just hual water to it. The electric pump is to keep the noise down.

  
blacksands_man
07:08:34 Wed
Feb 25 2009

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Re: New highbanker

You need about 20 "D" cells wired up for 12v (2 banks of 12v wired together) if you go that route for your 2000gph pump... minimum (could get a power supply for home use or car battery) , i found out as there seems to be a certain draw rate on "D" batteries as 10 wired for 12v weren't enough & reduced flow rate, also if you can go to 24-32v bilge pump versions it might be better as you won't have as much heat /performance losses through wires.My battery cases were melting...
here is some heavy duty "D" cell battery holders can be snapped together...
http://www.sci-supply.com/closeup.asp?cid=104&offset=0&pid=110

I dying to see how this G-1 performs... some measurements of microscoped gold form the lower sluice segment with scales for size would be interesting or clean up results from G-1 to S-1 equipment as compared to other common equipment out there would be interesting or the tailings from other equipment run through the S-1 to see if it picks any gold up would be encouraging.

blacksands man
[1 edits; Last edit by blacksands_man at 07:23:46 Wed Feb 25 2009]

  
JOE_S_INDY
11:08:07 Wed
Feb 25 2009

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New Highbanker Question

I have some friends in Australia who have been following this thread and they asked me to forward their questions to Joel here.

The subject of G-1 use in clay is the biggie here. As Geoff said "...how does it handle a reasonable percentage of clay in the wash?"
So, how does the spray system and the hopper area do in processing normal clays. Realizing that there are endless types of clay, how effective is the design.

XXXXXXXXXX

Also, the square spray bar - is there a provision for removing internal blockages to the spray holes? Other than the usual sand and debris there was an unusual problem at Tunea, Aust. with, of all things, small leeches plugging the spray holes.

XXXXXXXXXX

And there was the concern about UV protection in the plastic. Also, the plastic's ability to hold up, strength-wise, to long term shoveled gravel wear and knocks from errant shovel wielders - or as a friend asked "Ide say it would cop a flogging though being plastic ?"

Just a lot of questions which, I'm sure, you have encountered before.

Joe



---
Wiser Mining Through Endless Personal Mistakes
 
 
Ben_Rumson
16:04:18 Wed
Feb 25 2009

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Re: New Highbanker Question

When I run my recirculating setup. I'll shovel into a 5 Gal. bucket with 1/4 inch clasification holes drilled in the bottom that is set into another 5 gal. bucket wich sits in a 15 Gal. tub. Shovel and agitate until you've got a full bucket and feed that into the recirculating sluice. Go back and poor whats in the tub back into the bucket.
Keeps the recerculating sluice water cleaner and I can stretch the water further.

  
tabwyo
20:15:48 Wed
Feb 25 2009

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Re: New Highbanker Question

Quote: JOE_S_INDY at 11:08:07 Wed Feb 25 2009


XXXXXXXXXX

Also, the square spray bar - is there a provision for removing internal blockages to the spray holes? Other than the usual sand and debris there was an unusual problem at Tunea, Aust. with, of all things, small leeches plugging the spray holes.

XXXXXXXXXX

Joe


We have that here in the late summer. Don't know if they are tiny tiny leeches or midge larve. But the pack off the miners moss so bad you don't recover squatt.

The holes on the spray bar ar big enough to stick a #2 pencile in. And I guess if you really had a serious issue it would be hard to rig up a spraybar that you can tear apart and clean. PVC is cheap.

  
overtheedge
20:35:08 Wed
Feb 25 2009

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Re: D-cells for pumps

Re: Batteries

Here is some battery data to consider before you decide to choose what
will work vs. what might work. Data from Mouser ® catalog and Energizer®
website.

D-cells are available up to about 18,000mAh. This is NOT 18 Amps for
1 hour. It is 720mA for 25 hours. Alkalines are typically rated for
a 25 hour discharge period. If you attempted a 18 Amp discharge, the
battery will overheat and probably leak all over the place releasing
potassium hydroxide, remember lye?

A 2000gph bilge pump needs about 5 Amps to run at 12.6-13.6 volts.
This brings in another problem; batteries lose voltage with amperage
draw. The higher the draw, the greater the sag voltage. Running a motor at
lower voltage causes the wiring to heat-up and this increases voltage loss
and reduces motor life. Power (watts) is voltage multiplied by amps. Lower
the voltage and the amperage must increase. 12V motors are not rated to
use lower voltages due to the ampere capacity of the wiring.

If we consider 18,000 mAh D-cell batteries in parallel to get
36,000 mAh capacity, we are still faced with 1440 mAh maximum draw
to get the rated Ah capacity. Series connection adds voltage, but no
increase in amp-hours.

So what happens if we go for the 5 Amp average draw from this battery
pack? From the Energizer® website, a 2900mAh AA will have 2900mAh capacity
at 25mA draw, but only 1300 mA capacity at a 500mA draw. As the chemistry
of alkalines is a constant, it matters little whether the battery is a AA
or D-cell, the discharge curves are identical in the time : % discharge
to capacity rate. Going back to the AA, if we raise the discharge rate to
16% of rated capacity, we only get 45% of the rated capacity.

Now back to the D-cell pack, the 36,000mAh pack will produce about
16,000-1700mAh at a 5A draw. These batteries run a bit over $1 each
and are not rechargeable. Using these batteries at the 5A rate will
still result in overheating that was pointed out in a previous posting.


So, what to do? Use either a car battery or better still, a deep-cycle
marine battery rated for 50Ah or better. Weight should never be the
major consideration unless you are packing the recovery system some
distance. If it has to be packed, use a river-robber type system. Or
you might wanna consider a wheelbarrow.

Science, math and the manufacturers data sheets must be the basis
for any decisions. Monetary-based decisions must be balanced against
recovery. It is called cost-benefit ratio.

  
JOE_S_INDY
01:36:54 Thu
Feb 26 2009

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Re: New highbanker

Even just a small garden tractor battery should work better than flashlight batteries.

Joe



---
Wiser Mining Through Endless Personal Mistakes
 
 
tabwyo
02:43:03 Thu
Feb 26 2009

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Re: New highbanker

I am talking a car batery style charger with 5 amp service........... I plug it into the wall then connect the leads.

  
goldrushpro
03:14:58 Thu
Feb 26 2009

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Re: New Highbanker Question

Joe_S_Indy,

To Geoff's questions -

The Black ABS plastic DOES have uv inhibitors.

This plastic is super durable and will last an increadible amount of time.

Remember that a two dollar (six Australia dollars?) bottle of ABS glue will fix it if cracked. (has never happened yet)

The holes in the spray bar are quite large for spray bar holes and will most likely not plug. The section of the water bar with the holes in it is not glued and could be removed for cleaning.

And to address the clay issue - I have not specifically run heavy clay in the G-1 but after carefull consideration I've come to the conclusion that if the G-1's hopper box were set flatter than normal, it would hold the clay bering material in a heap and force it to be very well blasted.
I'm thinking that it might even be better than a power puddler? ? ?
I'll have to try it soon!

Joel

  
blacksands_man
07:02:15 Thu
Feb 26 2009

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Re: New Highbanker Question

Well goldrushpro,

Have you returned from the Snake river with your results yet? I am holding my breath to see the sizes & quantities of gold you got as well as experiments with the plastic sheet.

And by the way I applaud your dedication to your passion in your interest of gold recovery no matter what the cost, maybe you should write a book on slice / riffle design to further the art to the next level & for future sluice designers ...I'd buy a copy.

blacksands man
[2 edits; Last edit by blacksands_man at 07:05:56 Thu Feb 26 2009]

  
goldrushpro
14:22:25 Thu
Feb 26 2009

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Re: New Highbanker Question

Black sands man,

Yes, I went to the Snake. The outing was a hit and about 35 prospectors showed up. But as for testing - I wasn't able to get that serious.
Many of the prospectors hadn't seen the G-1 yet and were crowded around asking questions. Though it was an excellent day for Feb. it still wasn't warm outside. I panned around for the best dirt and then had (some) help from the guys hauling buckets back to the highbanker. I saw from the panning samples that the best gold we could find was only in the range from 100 mesh to about 250 mesh and I really needed a spot with finer gold than that because I already knew it would catch all that. Then it ended up being a talk session about how little gold there is in the Snake River (hee hee) I knew going in, that to make that river pay one would need to run material all day and lots of it! But the guys and gals who showed up weren't that interested. :confused:
But with me, the finer the gold - the more I like it!

I'll go back by myself and find a spot with a bunch of the 300 mesh gold and do some more testing. I'll put a couple S-1 sluices at the end and get them set really well and we'll see how we do.

Thanks,
Joel

  
Ben_Rumson
06:10:38 Fri
Feb 27 2009

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Re: New Highbanker

In the door 7 days from purchase. Came FedEx.
ABS plastic is a bit thicker then the LeTrap. Fine gold recovery area lower sluice shows a strong resemblance to the LeTrap riffle.
Solid frame and trays when setup. Less flex in it then the LeTrap when out of frame. 3" inch dredge adapter clamps and adjusts well.
Makes a good first impression. Not one of "where did my money go". More like " I'm glad those guy's didn't get back to me with the Keene qoute".
I'll have her in the field next week. Weather permitting.

  
viniv
16:23:51 Fri
Feb 27 2009

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Re: New Highbanker

The damn thing works fine just buy one:devil:


Guys watch and listen to ANY of my video hey its not so technical and nothings perfect.

I ran soft clay and like goldrush says the tray holds the clay in until its blasted to pieces if I had layed the top section flatter it would have held it even longer but it broke down a handful of the clay I was in in seconds.

Spray bar never clogged are those 1/4 inch holes goldpro ?


I got gold in all sizes found 50-100 mesh in the upper section even yes there deep riffles.

NO dont buy one so I can find all the gold thanks......:gonetoofar:

goldrush I think if I get one I want longer legs so its off the ground hire is that a problem getting some special legs made ? maybe a foot longer ?

  
goldrushpro
05:01:36 Sat
Feb 28 2009

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Re: New Highbanker

Hey viniv,

yeah - you could order one with longer legs but since these are welded and plated in batches, you might have to wait a couple weeks to get them. Or you could have them right away with paint instead of plating.


Thanks,
Joel

  
TrapperRick
05:09:56 Mon
Mar 2 2009

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Re: New Highbanker

I am not an engineer but my dad was acclaimed as one of the best, and my two brothers are both engineers. I missed my calling but it does come rather natural for me. I watched all the videos, and saw immediately that it was intelligent, very carefully thought out designs. I had a problem with the gold pan until I saw that it was a *skewed* cylinder configuration; that made sense, a negative slope for really dumping the trash, a positive slope with rim, and two 90 degree sides. Also, the nibs in the bottom of the pan serve the same purpose as when I stick my fingers into the mud to help stratify it.

I can't wait to see the results on the products but I've already made up my mind; I want one of these. As far as the price goes, I think it's very reasonable. Anyone that has ever been in business knows you have to make a reasonable profit or you won't be in business next year. I had rather pay a reasonable price for the best product than twice the price for an inferior product that weighs three times as much and doesn't recover as much. I'll give that baby an Alaskan workout!

  
auldrider
10:55:28 Wed
Mar 4 2009

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Re: New Highbanker

Hello, new member here.

Dead keen to hear more comentaries reviews etc on this G-1 unit.

It seems to have gone a little quiet, like what's happening?

Has anyone used the dredging attachment yet? Cheers, John.



---
Learn from the endevours and mistakes of others because you haven't got time to do it all yourself.
 
 
tabwyo
14:59:35 Wed
Mar 4 2009

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Re: New Highbanker

Most of the places I work are still under snow and ice right now. As soon as things melt a bit more I'll be hitting it pretty hard.

  
blacksands_man
19:24:26 Wed
Mar 4 2009

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Re: New Highbanker

goldrushpro ...

Just to get the conversation going ...
Whats the operating slope / angle of the lower sluice on the G-1 ?

blacksands man

  

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