Tetra Pak, Lausanne, Switzerland, and Rockwell Automation, Milwaukee, announced a strategic business collaboration for cheese and powder solutions.

ProMach, a Cincinnati-based provider of packaging machinery solutions, said it acquired Serpa Packaging Solutions, a Visalia, Calif.-based provider of cartoning and end-of line packaging systems for the pharmaceutical, medical device, nutraceutical, food, cosmetics and personal care markets.

Kennesaw, Ga.-based Unibloc Pump, a manufacturer of positive displacement pumps, strainers, valves, bubble traps and other solutions for sanitary flow control applications, said it was acquired by May River Capital, a Chicago-based private equity firm focused on helping high-caliber industrial businesses grow and prosper.

Stäubli Group, a Pfäffikon, Switzerland-headquartered provider of industrial and mechatronic solutions, said it is starting the New Year with a new CEO.

Koch Separation Solutions (KSS), a provider of separation technology headquartered in Wilmington, Mass., said it acquired of Willmar, Minn.-based Relco, a provider of process technologies for the dairy and food industry.

Charlie Ingram, executive vice president and chief marketing officer, will retire from Erie, Pa-based Eriez at the end of 2020, according to president and CEO Lukas Guenthardt.

ProMach, a Cincinnati-based provider of packaging machinery solutions, said it acquired Statco-DSI Process Systems, a provider of integrated sanitary processing systems and engineering services for the food, dairy and beverage industries.

ProMach, Cincinnati, a provider of packaging machinery solutions, said it acquired Panther Industries, a provider of automated labeling equipment for Fortune 1000, as well as small- and medium-sized, businesses across North America.

Krones, Neutraubling, Germany, said it successfully completed the process of validating its Contipure AseptBloc DN system and gained approval from the FDA.

ProMach, a Cincinnati-headquartered provider of packaging machinery solutions, said it acquired Deer Park, N.Y.-based Modern Packaging, a manufacturer of filling and sealing solutions for the food and dairy industries.