The device is used for coating the outer surface of the round bar material (slender shaft) with a multi-layer hard chromium plating by passing the bar through.There are automatic feeding device, plating pre-treatment device, automatic unloading device, chromatic acid mist recycling device in this system.
The system is energy saving and environmental protection to make products with the discharge of waste water chromium free. The washing water still flows into the master groove before and after the work-piece(processing target) is in the groove. Supplement the plating solution for its evaporation and decomposition decreasing. The plating tank and circulating tank ventilation are all channeled to chromium mist recycling and purification separation device. The detained chrome mist and washing water are guided to main tank to supply for the loss of plating evaporation, which saves energy and at the same time, protects the environment. Chromium mist recycling and purification tower ensure the quality of the purification effect, and at the same time  achieve zero discharge of electroplating waste-water.
The anode plate distance between the work-pieces is relatively small. The work-piece passes through the imitation anode and moved in with even speed, which guarantees the evenness of plating coating both in circumference of the bar, or in the direction of the axis of the bar.