Currently, Gold Watch Project offers five different pre-set sizes of gold mining machines the M30, M50, M100, M200, and M300. These machines are numbered by their weight capacity in tonnage, meaning that you should consider the scale of your operation before purchasing a machine. After all, theres no need to get a 200-ton capacity gold ... M50 Gold Mining Wash Plant. $46k. USD for Gasoline/Petrol. Add $5k for Diesel Option. Buy an M50 Plant. Water Pump Included. 300 ft High Pressure Hose. 8 Pieces of Lay Flat Hose. Best with 8-15 Ton Digger. 15458 products found for. gold wash plant. Add to Favorites. 1 / 6. Gold Plant Trommel Washing Plant Africa Popular Small Trommel 200 Tph Alluvial Gold Mine Washing Plant For Sale. Up to 5 years warranty. $3,000.00-$12,000.00/ Piece. 1.0 Pieces (Min. Order) Shandong Sinolinking Import And Export Co., Ltd.