Rotary Substrate Coating System

Cybernetik’s Rotary Substrate Coating System completely automates the washcoat application process for catalytic converter substrates. Starting with a pick and place robot, the operations shift to an eight-station rotary indexer table that handles the coating, air stripping, pre and post weighing, and acceptance and rejection of the substrates. A dryer removes washcoat moisture for finishing.

Operator loads the uncoated catalytic converter substrates at the infeed conveyor of the rotary substrate coating system after scanning their barcodes for traceability. A pick and place robot loads the substrates on the rotary indexer. Each of the eight stations of the rotary table has two substations. After weighing, the washcoat is passed through the uncoated substrates from the top with suction applied at the bottom. Vacuum air stripping from both ends by inverting the substrates removes excess washcoat. The catalytic converter substrates are then weighed followed by rejection of overweight and underweight ones. Dryer uses convective heating with counter air currents for moisture removal from accepted substrates. Finished products are available at the dryer exit.