Substrate Coating System

Cybernetik’s Substrate Coating System is an end-to-end automation solution for washcoat application, drying, and calcination of DOC / DPF / SCR catalytic converter substrates. Traceability lends product visibility across operations. The system has safety features built into it. Typically, diesel oxidation catalyst (DOC), diesel particulate filter (DPF), and selective catalytic reduction (SCR) devices are located sequentially in diesel exhaust lines. They respectively handle carbon monoxide (CO) and hydrocarbons (HCs), solid soot particles, and nitrogen oxides (NOx ).

Operator loads the uncoated catalytic converter substrate on the infeed conveyor of the substrate coating system where a safety tunnel prevents unauthorized human entry. Next, barcode printer and scanner ensure traceability. A pick and place robot transfers the substrates for coating. Vacuum pumps draw the washcoat through the core followed by air stripping of excess paint. The same robot transfers the coated substrates for drying. Then, another pick and place robot shifts the dried substrates for calcination. A third pick and place robot locates the substrates at the calciner exit and transports them for barcode scanning and back pressure checks. Thereafter, this robot places the accepted catalytic converter substrates on the outfeed conveyor.