The 12-inch Gold Dredge
Each dredge is designed and custom-built to adapt to your individual property needs.
12-inch Dredge Specifications
CAPACITY: | 250 YARDS/HR. |
WEIGHT: | 25 TONS |
HEIGHT: | 24 FEET |
LENGTH: | 45 FEET |
WATER: | 6,000 GPM (Can be recirculated) |
WIDTH: | 26 FEET |
COST: | Starting at $6 million USD |
POWER PLANT: | 550 KW Onan Cummins Diesel Generator powering an electric motor-driven Pioneer water pump capable of 6,000 GPM. |
Dredge Operations
- Two men per shift can operate
- Powered by Cummins diesel gen-set 550KW
- 200 psi water pump
- 550 KW 3-phase, 220/110-volt generator
- air compressor
- Centrally-located electrical & air-generated controls
- Designed to operate on a river or pond.
- Needs at least three feet of water to start operating
How it works
![](http://dredge.wpenginepowered.com/wp-content/uploads/2015/04/Dredge-009.png)
The 12” dredge handles an average of 300 cubic yards of material per hour, or 7,200 yards per day. The unit digs by sucking water and gravel through a 12-inch pipe. A unique “Jet Principle” moves the material without use of a sand pump. The water and gangue material are dumped into a flume and washed over a grizzly.
The sand and mineral particles are fed into the concentrator. The gangue goes to tailings. Upon completion of the cycle, the mineral particles are concentrated at a minimum ratio of 2,000 to 1.
![](http://dredge.wpenginepowered.com/wp-content/uploads/2015/05/IMG_1625.png)
At this rate, the concentrate contains over $5,000 per ton in gold.
![](http://dredge.wpenginepowered.com/wp-content/uploads/2015/05/Picture-1360.png)
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