Closure Systems International (CSI) will exhibit at PACK EXPO International 2026, October 18–21 in Chicago, Illinois, at booth S-2930, showcasing its full capper equipment lineup alongside Defender-Lok, the next-generation child-resistant closure for OTC and nutraceutical packaging.

Market-Engineered Cappers

CSI's capper portfolio spans nine purpose-built platforms, offering a dedicated capping solution for virtually every major packaging segment — alcoholic beverages, carbonated soft drinks, bottled water, personal care, chemicals, pharma/OTC, nutraceuticals, food, fresh ESL, aseptic, and hot-fill. CSI engineers each machine for consistent application and direct filler integration — a reflection of its reputation as one of the industry's most reliable, low-maintenance capping equipment providers.

Defender-Lok CRC

CSI will also feature its Defender-Lok CRC closure at PACK EXPO — the lightest-in-class child-resistant closure, designed specifically for high-speed OTC and nutraceutical lines. Defender-Lok is up to 33% lighter than conventional CRCs, certified child-resistant and senior-friendly, liner-agnostic, and drop-in ready for existing production lines. Defender-Lok specifications already meet California SB-54's 2027 reduction targets ahead of the compliance deadline. The closure is commercially available in 33mm and 38mm.

Redefine What's Possible

"PACK EXPO is where our customers come to solve real production challenges, and this year we're bringing them two answers," said Clint Rush, Global Marketing Director at CSI. "Whether it's a capper engineered for their exact market or a lighter, easy to apply CRC closure that gets ahead of upcoming regulation, we built both with our customers' lines in mind."

Attendees can visit CSI at booth S-2930 to learn more about the full capper series and Defender-Lok, and to speak with CSI's team about closures, capping equipment, and technical service solutions. Complimentary registration for PACK EXPO International is available using code 55T89 at packexpointernational.com.

About Closure Systems International

Closure Systems International Inc. (CSI) is a global leader in designing and manufacturing innovative closures and capping equipment. With a focus on performance, safety, sustainability, and customer partnership, CSI delivers integrated systems solutions that help brand owners protect product integrity, enhance consumer experience, and drive operational efficiency.

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