Building a vibrating dry washer for gold prospecting can be a rewarding DIY project. A dry washer separates gold from dirt without water, using air and vibration to stratify materials. Below is a step-by-step guide to making a simple vibrating dry washer.
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Materials Needed:
1. Frame & Hopper:
– Plywood or sheet metal (for the hopper)
– Aluminum or steel tubing (for the frame)
– Screws, bolts, hinges
2. Vibration Mechanism:
– 12V or 110V Vibrating motor (e.g., from an old massage chair or fitness machine)
– Alternatively, use an eccentric weight on a small DC motor
3. Screen & Recovery System:
– Mesh screen (1/4″ or 1/8″ for classifying)
– Riffle tray (with carpet, miner’s moss, or V-mat for gold capture)
– Burlap or canvas (to help trap fine gold)
4. Air Blower (Optional but Recommended):
– Small leaf blower or electric fan
– PVC pipes/hoses to direct airflow
5. Miscellaneous:
– Springs or rubber bushings (for vibration isolation)
– Power source (battery or AC adapter)
– Handles for portability
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ow to make a vibrating dry washer” /> Step-by-Step Construction:
# 1. Build the Frame & Hopper
– Construct a sturdy frame from aluminum or steel tubing.
– Attach a hopper at the top made of plywood or sheet metal with a wide opening (~12–18″ wide).
– Ensure the hopper has an adjustable gate to control material flow.
# 2. Install the Classification Screen
– Below the hopper, mount a mesh screen (~1/4″) to remove large rocks.
– Angle the screen slightly (~10–15°) to help material move downward.
# 3. Add the Riffle Tray & Recovery Mat
– Below the screen, install a riffle tray lined with:
– Burlap/carpet at the top (to catch fine gold).
– Miner’s moss/V-mat at the bottom.
– Angle the tray (~5–10°) for better stratification.
# 4. Attach the Vibrating Motor
– Mount a vibrating motor on the side of the frame.
– If using an eccentric weight on a DC motor, ensure it spins fast enough (~2000