To control emissions from their printing presses, two companies have added regenerative thermal oxidizers built by CMM Group LLC, De Pere, Wis.

Graphic Services in Rockland, Mass., has installed a 15,000 scfm regenerative thermal oxidizer (RTO) on its five-unit Baker Perkins heat-set web press. The 30-year-old company provides print solutions to commercial, educational and financial markets. After adding web capacity to its original sheet-fed operation, Graphic Services now can produce a range of sizes as well as

double-parallel formats on different papers.

Designed to exceed all local, state and federal clean air requirements, the oxidizer connects to the heat-set web press, where it destroys up to 99 percent of the volatile organic compounds (VOCs) generated.

To achieve greater VOC destruction efficiency and reduce energy costs, W.D. Hoard & Sons, Fort Atkinson, Wis., has installed a 10,000 scfm regenerative thermal oxidizer, also from CMM Group.

Founded in 1870, Hoard & Sons is a heat-set web-printing company producing commercial and publication printing ranging from magazines, catalogs and brochures to newspaper inserts, calendars and annual reports.

Hoard's RTO destroys VOC emissions generated from three heat-set web-offset presses with multi-color capabilities. Previously, an older thermal recuperative unit and an older catalytic oxidizer controlled press emissions. The new RTO destroys up to 99 percent of the VOCs at the production facility while reducing Hoard & Sons' annual natural gas consumption.

For more information, go to or call (888) 336-9800.