Welcome to GWP
Manufacturers of high quality, affordable,
mercury free gold wash plants for all
placer and alluvial mining.
Gold Watch Project
Welcome to GWP, where we make high-quality, affordable gold wash plants. Our product lineup is designed to effectively handle anywhere from 30 to 300 tons of material per hour. Each wash plant has 3 proportionately sized sluice boxes designed to optimize gold recovery in all conditions.
All In One!
Each machine is a complete portable plant; there is no need for additional screens or sluice boxes! At the top is an extreme duty grizzly bar section that will take up to 24 inch rocks (91 cm). Classification begins when material is placed on the grizzly bars and high pressure water separates the sub-1” (25.4 mm) material from the large rocks. Next, the screen deck further classifies the material and sub-.25” (6.35 mm) material drops into the sluice boxes, remaining sub-1” material passes through the nugget trap into the final riffle set for capture, and larger rocks are discarded.
The sluicing system has three boxes that are independently adjustable, and with anywhere from 20 feet of sluice box on our 50 ton units to 40 feet of wider boxes on the 200 ton units, gold recovery is excellent. It often exceeds 95%, even with fine gold down to 200 mesh! What’s the key to such excellent recovery? Science. Our design is based on the performance data found in a landmark technical report on sluice boxes and riffle systems. Watch the video of our M50 wash plant.
See Video Examples
Cleaning out the machine is simple, quick, and efficient, with quick spin clamps that release the riffle sets to reveal the Miner’s Moss below. Depending on the environment, this usually only needs to be done once a week (or even less frequently), and the entire process can be done in less than 30 minutes!
All of our plants are 100% hydraulic with no electricity needed. The shaker weight is driven directly by the Eaton hydraulic motor with no belt or chain drives, which means even fewer mechanical parts to break down. Incorporating the hydraulic direct-drive system lowers fuel consumption and fewer mechanical breaking points. Efficient power means more money in your pocket. All machines use Premium Rexnord bearings with grease points to ensure years of trouble-free operation.