A gravimetric feeder weighs the material to be fed into the food manufacturing process at a constant weight per unit of time, producing precise feeding with accuracies of 0.25 to 1%. Capturing the weight enables monitoring and control of the process with a closed feedback loop to assure the high accuracy, even with materials of varying bulk density. Gravimetric feeding is more expensive than volumetric feeding; however, the savings in ingredient usage can quickly offset this cost. The two most common types of gravimetric feeders are loss-in-weight feeders, where the entire feeder and material being discharged are weighed to detect the loss in weight of the material, and weigh belt feeders, where a moving belt is mounted over a weighing module and the weight of the material on the belt x belt speed determines the feed rate. Gravimetric feeders can be used in both batch and continuous processes in the manufacture of processed foods.
Compare and Learn about Industrial Gravimetric Feeders (Food Processing)
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- Agitation: Twin Screw Feeder
- Feed Rate: 0.04 to 4.0 dm^3/hr (0.0014 to 0.14 ft^3/hr)
- Description: Application: Gravimetric feeding of free flowing to difficult powders (e.g. lumpy or bridge building materials) and micropellets. The weigh bridge is a sanitary version and is therefore suitable for quick and easy cleaning.
Design:
Twin screw feeder mounted on a 12 kg scale. The MT12 Microfeeder is available in standard finish as well as two pharmaceutical finishes. A variety of feeder screws allows for handling a wide range of bulk materials. The feeding equipment is easy to dismantle. The agitator gently moves bulk material to the throat and then into the feed screws. A protective enclosure (plexiglass) is included to isolate the feeder from outside influences and ensure maximum accuracy.
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- Agitation: Weigh Belt Feeder
- Feed Rate: up to 660 cu. ft. (18,961 L) per hour
- Description: Schenck AccuRate weighbelt feeders are suitable for a variety of applications including the feeding of abrasive materials that may damage other types of feeders, materials with large particles, free-flowing materials, applications where headroom is limited, metering materials for totalization, and applications requiring a wide range of feed rates.
Schenck AccuRate belt scales are easily installed and are ideal for providing continuous in-line performance information.
DEA Weighbelt Feeders are suitable for a variety of applications ranging from pasta to plastic pellets which could be damaged in a traditional screw feeder, abrasive materials that may damage other types of feeders, materials with large particles that may not fit through a screw feeder, free-flowing materials, and applications where headroom is limited. A wide range of feed rates from low to high capacity are available.
- 12" and 24" belt widths.
- Easy belt removal.
- Feed rates up to 1,680 cubic ft/hr.
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- Agitation: Weigh Belt Feeder
- Feed Rate: up to 1,680 cu. ft. (47,578 L) per hr.
- Description: Schenck AccuRate weighbelt feeders are suitable for a variety of applications including the feeding of abrasive materials that may damage other types of feeders, materials with large particles, free-flowing materials, applications where headroom is limited, metering materials for totalization, and applications requiring a wide range of feed rates.
Schenck AccuRate belt scales are easily installed and are ideal for providing continuous in-line performance information.
DEA Weighbelt Feeders are suitable for a variety of applications ranging from pasta to plastic pellets which could be damaged in a traditional screw feeder, abrasive materials that may damage other types of feeders, materials with large particles that may not fit through a screw feeder, free-flowing materials, and applications where headroom is limited. A wide range of feed rates from low to high capacity are available.
- 12" and 24" belt widths.
- Easy belt removal.
- Feed rates up to 1,680 cubic ft/hr.
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- Agitation: Weigh Belt Feeder
- Feed Rate: up to 500 tons per hour (std)
- Description: Schenck AccuRate weighfeeders, like our DMO models, are specifically designed to provide dependable service with minimal maintenance and care. Heavy-duty, long life components are selected to assure a stable and distortion-free compact assembly capable of withstanding tough industrial conditions.
- 24" to 54" standard belt widths. Special designs up to 72" available.
- Easy belt removal.
- Feed rates up to 500 tons per hour standard. Higher capacities available.
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- Agitation: Screw Feeder
- Feed Rate: 0.30 to 330 cu. ft. (8.5 to 9300 L/hr.)
- Description: Schenck AccuRate’s 3-A Sanitary MECHATRON® Feeder was designed specifically for use in the food, dairy, and pharmaceutical industries where equipment and processes must meet 3-A sanitary levels or equivalent. Using the award winning MECHATRON® Feeder as the basis for the offering; welds, radii, seals, surface finishes, gaskets and all contact and non-contact materials were reviewed and specified as directed by the 3-A sanitary standards inspectors.
Available product features include AC drive packages, an FDA approved “Coni-Flex™” flexible conical feed hopper, helix configurations for feed rates from 0.30 to 330 cubic feet (8.5 to 9,300 liters) per hour and an unmatched ability to disassemble, clean, reconfigure, and service from the non-process side of the feeder.
- Designed specifically for use in the food, dairy, and pharmaceutical industries.
- Complete disassembly from the non-process side of the feeder.
- Crack and crevice-free contact surfaces.
- White epoxy-painted, wash-down rated AC motors.
- Domed cover optimizes drainage during cleaning.
- Theoretical feed rates from 0.30 to 330 cubic feet (8.5 to 9,300 liters) per hour.
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- Agitation: Screw Feeder
- Feed Rate: 0.5 to 150 kg/hr
- Description: Designed specifically for low feed rate applications, the PureFeed®
AI-300 feeder includes the following customer driven features; quick
and easy disassembly, a dual arm external agitation system for
maximizing material handling versatility, and a disposable, recyclable
EPDM feed hopper. That means simpler, shorter cleaning cycles and
virtually no chance of cross contamination when moving from one
material to another.
- Volumetric and gravimetric configurations
- Flexible EPDM feed hopper that is disposable and recyclable
- Excellent for metering micro ingredients, color pigments, and plastic additives
- Feed rates from 0.5 to 150 kg/hour
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- Agitation: Vibratory Feeder
- Feed Rate: up to 341 cu. Ft. (9,657 L) per hr
- Description: SCHENCK AccuRate’s SolidsFlow® USDA Accepted Model 2000 Feeder was designed specifically for use in the food, dairy, and pharmaceutical industries where equipment and processes must meet stringent sanitary levels. Using the SolidsFlow® Model 2000 feeder as the basis for the offering; welds, radii, seals, surface finishes, gaskets and all contact and non-contact materials were reviewed and specified as directed by USDA inspectors.
The SolidsFlow® USDA Accepted Model 2000 Feeder is a mass flow feeder based on louvered vibratory feeding technology. The feeder utilizes a vibrating drive and tray frame, which contains a removable feed tray. The feed tray is fitted with a number of flat blades of varying lengths set at an angle and a predetermined distance apart. This effectively divides the discharge area into a series of material feed slots.
Each blade acts as a vibratory feeder with a gap and overlap across the entire width of the discharge opening. All blade dimensions and angles are fixed to suit the particular characteristics of the material(s) being fed. Therefore when the vibrations cease, material flow stops under the action of the angle of repose of the product.
Users of the SolidsFlow® USDA Accepted Model 2000 Feeder will find that it is a low maintenance, easy to clean feeder that handles a wide variety of materials whose flow characteristics may differ. With no moving parts, the Model 2000 requires little maintenance. The feeder is also offered in volumetric and gravimetric models with feed rates up to 341 cubic feet (9,657 liters) per hour.
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