News Item
[25]
03/07/06 Australia
Gold Highbanker. |
| Filed Testing A Gold Highbanker Introduction - I may not be that smart, nor very good at spelling. But I do know prospecting_ That's a fact. What I write is a guide only there are some around, and you will come across them from time to time who knows it all, they will make a point of letting you know this fact. It's a sad day indeed when one knows it all as stated what I am about to write is a guide only and is based on the Oallen Ford area. Each Field has its own set of rules & hidden secret's it is up to you as a prospector to find the unwritten rules and unlock the secret's. pleas enjoy the test report. James Banjo A - was made for a chap in his 60's he remodel the design somewhat but overall it is much the same. The bottom hopper is hexagonal and is 28 inches long by 6 & a 1/2 wide. The top hopper is in a hexagonal shape _ a bugger to make_ and is 21 inches long by 10 inches wide. I run this little unit at 100 meters out of a E-Bay motor fitted with a 1& 1/2 inch inlet/outlet pump output power _kW_ 0.7, max suction head 7 meters, pump rotation speed 3000 c/m. The motor was running just above idle and would have given me a full days work on one tank of fuel around 2 liters _ 3 which is very economical. The jetting is from a 20 mm pipe in a U shape around the top hopper. There are two rows of jets each row is placed 1/4 apart each jet hole is placed one inch apart and is 1.5 mm in size. A pan was run under the unit for 3 hours and not a speck was found in the pan. Removal of rocks from the top hopper of both units is done with a shovel while keeping your back straight. The area of wash processed was 5 meters by one meter by 300 cm the little unit done this easy. Banjo B - is a little bigger the bottom hopper is hexagonal and is 32 inches long by 7 & a 1/2 inches wide. The top hopper is of a square design and is 24 inches long by 12 inches wide. I use the same pump and hose as stated for A unit. Once more I run a pan under the Banjo for two hours not a speck which is very good. In fact only 10 _ of the fine micro gold made it to the riffle catchmeant area, the rest was in the gold tray. I am rather pleased with both units but feel unit B is the better of the two. The jetting on unit B is in the same manner of unit A. I think the new skid plate arrangement and the gold catchmeant tray is by far more superior and gives the banjo the edge over any other unit on the market today. Gold Trays - this is a tray designed to fit in the end of the unit which will catch most of the gold before it enters the riffle area. You can at any stage remove this tray and replace it without stopping the unit. It is great for checking to see if you are still on the gold or not. Panning - just a quick tip on panning, this tip only applies to plastic and some tin dishes but not steel. When panning you use the riffle are of your pan to cut the wash down quick when you start getting to the business end swing your pan. So the wash will travel over the flat area of the pan but be very gentle with this remember gentle you are at the stage where the gold is. Conclusion - remember just about anything will catch gold if used at the right angle and pace what you will need to consider is this. &_61623; How fast can I work my unit_ You only get back what you put in. &_61623; How transportable is the unit. &_61623; How economical is the unit to run. &_61623; How much concentrate will there be to clean up from the unit. &_61623; How easy will it be to clean the unit. &_61623; How much space will it take up in my vehicle. &_61623; Can I Carrie the unit over distance. &_61623; Do I need to use my hands to pull rocks from the unit. &_61623; Will a unit last the distance, remember they are been pounded with rock and must be made strong. The highbanker you chose must be able to be worked quickly, without putting your hands in or having to remove rocks by your hand. They must be easy to set and move in any work area at any given time. It is an advantage to be able to work a unit with a straight back. And never and I mean never put your hand in the riffle area of a working Highbanker. When working in the frosty months of the year always check the tension on your motor pulley before kicking the motor over your pump can freeze the result a snapped shaft on your pump. Check your layflat it can freeze tougher or at least form ice on the inside of your hose which will chock the hose and form a block which will result in a bust hose or snapped pump shaft. Oh well that is about the end of my rambling, believe what I say or disbelieve it that is your choice. But I know one thing I get heaps of gold. On a more serious note if you have a question please post and I will do my best to answer it for you, we are very lucky there is a lot yep lots of experienced members who will be more than happy to assist you with your questions. All the best with your golding I hope this post can be of help. James For more information drop in to the Alluvial God Prospectors Australia and say G'day. http://groups.msn.com/AlluvialGoldProspectors/_whatsnew.msnw |
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