Steuler Surface Technology supplies Tunnel Pickling Lines with medium to high throughputs for wire, wire rod and pipes using a discontinuous dipping process. The process runs within a closed tunnel in order to prevent the escape of corrosive fumes, thus protecting both staff and equipment. The tunnel significantly reduces the exhaust gas volume too.

The automated lines are operated using treatment programs that can be flexibly configured to suit the most diverse of requirements. The concept allows for simple expansion should an increase in throughput or the use of other materials be required.

The cascade tank systems used for pickling and rinsing optimize use of the respective treatment medium and shorten the treatment time of the different materials and formats, resulting in high-quality surface finishes with low consumption of chemicals and fresh water.

The material is automatically transported through the various treatment tanks using manipulators or, in a monorail pickling line, using transport units that are program-controlled.

The main advantages are

• Few personnel required and plant operator protected from the treatment media

• Optimized chemical consumption

• High availability and high surface quality

• Low fresh water consumption, minimal fumes

• Automated line with almost unlimited number of treatment programs

• Easy expansion with increased throughput or use of other materials