1. The gold centrifugal concentrator is a relatively new type of gravity concentration equipment.The machines utilizes the principles of centrifugal to enhance the gravitational force experienced by feed particles to effect seperation based on particle density. 2.The key components of the unit are a cone shaped concentrate bowl, rotated at high speed by an electric motor and a pressurize water jacket encompassing the bowl. 3.Centrifugal concentrator can be used not only for placer gold mining, but also for hard rock mining to recover the natural gold, replacing amalgamation and recover gold from the old tailings. 4.Application shows that the recovery can be as high as 99precentage and the concentrating ratio is up to 1000times.In recovering the natural gold in lode ore with 65percentage of the ore having a milling size -0.074mm, the recovery for the natural gold is up to 98percentage.For the natural gold of 0.004mm in particla size, the gold recovery is 97percentage.The equipment is patented in china.