Stolle celebrates delivery of 200th Tetrad System

Ball representatives, Perry Ropp, Chris Eaton, and Mike Nadon, take possession of the 200th Tetrad system from Erica Paul, director of Stolle Sidney. Image: Stolle

On Friday 11 June 2022 Stolle Machinery marked the delivery of its 200th Tetrad System, the premier easy-open end conversion press in the industry.

The Stolle Tetrad four-out conversion system was designed and developed at Stolle Sidney in Ohio, located a short drive north of Dayton. Since the debut of the first machine in October of 1998, the delivery of the system to Ball representatives on 11 June was the 200th Tetrad system built. An early believer in the productivity and reliability of the product, Ball currently has more of the Tetrads in its plants than any other can maker. Ball Corporation sent Chris Eaton, production manager and Mike Nadon, process support, from Ball Bowling Green to receive the new machine. Joining them was Perry Ropp, principal product closure engineer, who has been involved with the buy-off of 41 of the apx. 80 Tetrad machines built at Stolle Sidney that are owned by Ball Corporation.

Employees, family and the public enjoyed informative tours of Stolle Sidney and the Dayton Machining Center. Image: Stolle

The Mayor of Sidney, Mardie Milligan, read a proclamation declaring the day to be 200th Stolle Tetrad day in the city of Sidney. Vice Mayor Steve Wagner and several other Sidney council members were on hand as well. Stolle employees and their families attended as well as members of the general public.

According to Stolle, the Tetrad is the most popular EOE system in the world due to its productivity and reliability. The Stolle Sidney facility currently employs almost 100 people while another 100 work at the Dayton Machining Center where they produce over 65% of the high precision parts that are used in Stolle conversion system die sets. Over $12.5 million has been invested in in high precision equipment and the latest in machining technology at the Dayton facility. A matching open house and tours were held at both the Dayton Machining Center and the Stolle Sidney operation and shuttles provided free transport between the two locations.

More information on Stolle and its easy-open end conversion systems can be found at:

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