由美国丹佛(Denver)设备公司和乔伊(JOY)加工设备公司制造的轻便式圆筒筛—跳汰砂矿设备现已被用到冲积砂矿有用矿物的回收。该设备的主要优点超过常规设备。它的所有部件装在一个用薄铁板制成的罩内,耗水量很小,仅是其它型号跳汰耗水量的一半。适合于边远地区供水距离较远的矿点。 丹佛(Denver)跳汰还有一个理想的 Portable cylindrical sieve-jigging sand mining equipment manufactured by Denver Equipment Company and JOY Processing Equipment Company in the United States is now being used to recover valuable minerals from alluvial sand. The main advantage of this device over conventional devices. All of its components are housed in a shroud made of thin sheet metal and consume only a small amount of water, half the water consumed by other models. Suitable for remote areas in the distance water supply point. Denver jumpers there is an ideal