The 15-inch Gold Dredge

Each dredge is designed and custom-built to adapt to your individual property needs.

15-inch Dredge Specifications

CAPACITY: 400 YARDS/HR.
WEIGHT: 55 TONS
HEIGHT: 24 FEET
LENGTH: 65 FEET
WATER: 8,000 GPM (Can be recirculated)
WIDTH: 26 FEET
COST: $5 million USD
POWER PLANT: Diesel engine delivering in excess of a 1000 continuous horsepower drives a 10,000 GPM water pump and a 450 KW generator (3-phase, 220/110).

Dredge Operations

  • Four men per shift can operate
  • Powered by Cummins diesel gen-set 450KW:
  • 733 Continuous HP
  • 200 psi water pump
  • 250 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

The 15” dredge handles an average of 400 cubic yards of material per hour, or 9,600 yards per day. The unit digs by sucking water and gravel through a 15-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.

At this rate, the concentrate contains over $5,000 per ton in gold.