The Duravant family of operating companies serve the food processing, packaging and material handling segments.

Vacuum Stuffing, Pumping & PortioningComparison Table


Marlen OPTI series vacuum stuffing and pumping machines feature twin piston pumping systems with a variety of hopper options designed to match product requirements. This series is available in multiple capacities ranging from 10,000 to 34,000 lbs. per hour production rates. Additionally, we offer a complete line of portioning equipment to satisfy almost any scenario. Exact weight, volumetric, dynamic and transducer portioners are available options designed to fit your application.
  • Opti 100 Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Maximum capacity 10,000 lbs per hour, 250 psi pumping pressure. Ideal for smaller application...
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  • Opti 120 HP Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Available in three models with maximum capacity of 20,000 lbs per hour, 500 psi...
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  • Opti 200 Outboard Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Maximum capacity 20,000 lbs per hour, 250 psi pumping pressure. Ideal for applications requiring...
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  • Opti 200 Inboard Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Maximum capacity 20,000 lbs per hour, 250 psi pumping pressure. Ideal for applications requiring...
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  • Opti 280 Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Maximum capacity 28,000 lbs per hour, 500 psi pumping pressure. Ideal for all applications....
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  • Opti 340 Vacuum Stuffer & Pump

    Features a twin-piston vacuum stuffing and pumping system with a variety of hopper options designed to match product requirements. Maximum capacity 34,000 lbs per hour, 250 psi pumping pressure. Ideal for higher volume...
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  • Opti-Xtrude Extruder

    Features a twin-piston pumping system with a variety of hopper options designed to match product requirements. Designed specifically for continuous extrusion of shear sensitive materials. Ideal for the snack food industry.
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  • Opti Enclosed Pipeline X-ray Meat Inspection System

    Is purge runoff from your meat x-ray system draining your yields? Our enclosed pipeline x-ray inspection system increased yields by 1.5 to 3%. An OPTI pump from Marlen pulls the strongest vacuum on...
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  • COV Volumetric Portioner

    The COV Volumetric Portioner is designed to volumetrically measure and portion whole muscle products with weight accuracy of ±0.5%. Available in 5, 10, 20, 40, and 60-lb. sizes. Ideal for any product which...
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  • RS Volumetric Portioner

    The RS Volumetric Portioner is custom designed to volumetrically measure and deliver specific portions into rollstock packaging machines. It measures, then rotates to deliver into the package. Ideal for any product that needs...
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  • Transfer Valve Dynamic Portioner

    The Transfer Valve assembly is designed to use the dynamic portioning within the Opti Transducer Portioning System (TPS), capable of delivery whole muscle portion with minimal damage and accuracy of ±2% average deviation.
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