Closure Systems International (CSI), a global leader in closure design and innovation, has introduced its latest release, the Asepti-Lok 47 38mm closure. It is designed to safeguard product quality, ensure consumer safety, and help streamline production processes. The closure is specifically designed for aseptically filled beverages.
It is made for PET non-returnable bottles with the 1874 finish and features a one-piece, linerless design combined with advanced sealing technology. This design makes it ideal for a variety of drinks, including juices, nectars, sports beverages, and liquid dairy products.
The Asepti-Lok 47 comes with a three-point seal covering the outside, top, and inside, keeping the product secure. This provides strong protection and helps preserve the product reliably, keeping it safe from contamination. Despite its robust design, it is lightweight, with a two-lead construction weighing just 2.9g. A secure tamper-evident band adds another layer of confidence for consumers. The Asepti-Lok 47 meets all the requirements for aseptic filling and closure on PET bottles. It works with both wet and dry sterilization methods. The closure also includes a “smart venting” feature. This lets pressure release early, helps prevent blow-offs, and makes opening safe and straightforward for consumers.
It is built to keep bottling lines running efficiently. No lubricants are needed, which cuts down on maintenance and keeps production moving. The seal technology and the choice of resin help prevent distortion of the bottle finish and ensure long-term hermetic sealing. It fits existing aseptic bottling lines and provides consistent results. Removal torques are steady, reliable, and easy for consumers to manage.
CSI has given equal attention to the user experience. The closure provides clear tamper evidence and a non-slip grip that feels secure in hand. Opening torques are consistent, and resealing is safe. Together, these features help keep the product fresh and maintain quality throughout its use.
“The Asepti-Lok 47 38mm closure demonstrates CSI’s commitment to delivering innovative closure solutions that meet the highest standards of aseptic beverage packaging,” said Clint Rush, Global Director at CSI. “This closure ensures superior product integrity while driving operational efficiency for our customers.”

























