portable gold mining line,Proline Gold Mining and Prospecting Equipment/Gold DredgesIt was with all of those criteria in mind that we developed our line of dredges, most of which have seen many recent improvements. All of our . The Proline 2" dredge has seen many improvements, resulting in a smaller and more portable unit, with increased power and features normally found only on larger dredges.portable gold mining line,Proline Gold Mining and Prospecting Equipment, Inc.Proline Mining Equipment, Inc. is a company that was born out of a need for durable prospecting and small scale alluvial mining products. The company has evolved into its present position as a highly respected manufacturer of quality portable mining equipment and related hardware. Today, Proline is an industry leader,.