Marlen International, Inc. [“Marlen”] announces the North American launch of its next generation vacuum stuffing and pumping system – the OptiServ 400 – at this year’s PACK EXPO International being held November 6-9, at McCormick Place in Chicago, Illinois.

The OptiServ 400 is the first in Marlen’s series of twin-piston vacuum stuffing and pumping systems featuring pressure-sensitive servo drives. With up to 40,000 pounds per hour throughput at the industry’s highest vacuum levels, the OptiServ 400 is capable of surge free continuous flow production with up to 99.5% portion accuracy. In addition to precise portioning, the innovative next generation vacuum stuffer also comes with over 40% fewer shear points for superior product integrity, backing up the company’s best product appearance guarantee.

In an effort to reduce energy use, Marlen’s OptiServ models utilize regenerative servo technology for maximum efficiency. As motors decelerate and accelerate, the regenerative servo drive balances the load of all motors while lowering the overall heat production within the electrical system. The closed-loop servo system is controlled with modern Allen-Bradley components using PackML – the industry’s standard programming language – for overall equipment effectiveness, operational efficiency and ease of troubleshooting.

Marlen’s president, Bob Campbell, stated, “We are thrilled to continue offering food and meat processors a vacuum stuffer that produces the highest quality products at peak performance levels – something they have come to expect from our legacy ‘Opti’ twin-piston pump series which has consisted only of hydraulic units in the past. By combining regenerative servo drive technology with less wear-and-tear parts and a best-in-class ergonomic and sanitary design for quick, no tool changeovers, we are able to deliver a vacuum stuffer with a lower total cost of ownership and greener footprint.”

“PACK EXPO International serves as an excellent platform for interaction with a number of processors, allowing Marlen the opportunity to whet the appetites of industry players across a number of different food processing segments”, stated Jan Erik Kuhlmann, senior vice president of global sales and marketing. Kuhlmann continued, “Customers are anxious for the introduction of the OptiServ series to the US market and we anticipate a lot of very positive feedback at the show.”

About Marlen International 

Marlen International is a premium manufacturer of highly engineered food processing equipment and systems specializing in high quality proteins and a variety of other food products. Sold under the brand names of Marlen and Carruthers, their products have long set the standard for performance in pumping, stuffing, portioning, size reduction, thermal processing and food handling. Marlen’s engineering, design and technical experts are recognized as industry consultants and process partners, serving the world’s leading food brands through the delivery of operational excellence for over 60 years. Marlen International is a Duravant Company.

About Duravant 

Headquartered in Downers Grove, IL, Duravant is a global engineered equipment company with an over 100-year operating history. Through their portfolio of operating companies, Duravant delivers trusted end-to-end process solutions for customers and partners through engineering and integration expertise, project management and operational excellence. With worldwide sales distribution and service networks they provide immediate and lifetime aftermarket support to all the markets they serve in the food processing, packaging and material handling sectors. Duravant’s market-leading brands are synonymous with innovation, durability and reliability. Visit