Industry Application

RTO systems for printing and flexible packaging lines

Printing and packaging factories often face solvent VOC exhaust from ink, adhesive, coating and drying operations. A good treatment plan depends on collection design as much as the oxidizer itself.

Common exhaust sources

VOC emissions may come from gravure printing, flexographic printing, lamination, coating heads, drying ovens, cleaning stations and workshop ventilation. Each source can have different concentration and temperature.

RTO or Rotor RTO?

Higher-concentration oven exhaust may be suitable for direct RTO review. Large workshop airflow with lower concentration may need a zeolite rotor concentrator before oxidation. Mixed systems are also possible when collection points have very different conditions.

Questions before proposal

• How many lines and ovens are connected?
• Are high-concentration and low-concentration exhaust streams separated?
• What solvents are used in ink, adhesive and cleaning?
• Can heat be reused for drying ovens?
• What is the local outlet standard?

Practical buyer advice

Do not compare equipment price until ducting boundary, fan selection, safety monitoring, heat recovery and installation responsibility are clear.