Feeders

Composite Screw Feeder 
The AccuFeed uses molded composite components and a modular design to reduce cost and delivery time. Available in capacities up to 600 cu ft/hr, the patented feeder employs controlled vibration to achieve volumetric accuracies of +/- 1-2%. The AccuFeed permits selection of the most economical design for an initial application and offers the ability to upgrade the design as materials or characteristics change. It is available in interchangeable ½- to 6-in. screw sizes for feed rates up to 600 cu ft/hr. The machine disassembles quickly for cleaning and meets FDA and USDA sanitary requirements. The feeder may be scale-mounted for batch or continuous weigh feeding applications.  
Vibra Screw Inc., Totowa, NJ, 973-256-7410 www.vibrascrew.com

Electromagnetic Vibratory Feeders 
These small vibratory feeders for hazardous locations offer a Hi-Vi electromagnetic drive circuit that provides a solution to feeding, screening, and conveying applications. These drive units are CSA approved for Class II Division I, Group F&G hazardous environments. These feeders can incorporate design features such as tool-less removal of covers and screen inserts for trays. They have the ability to feed virtually any bulk material from micron size to bulky chunks. Special units can be ordered with multiple drives for greater capacities. A wide variety of standard and special trays are also available to meet practically any requirements.
Eriez, Erie, PA 888-300-3743 www.eriez.com

Vibratory Feeders  
BEST vibratory feeders are designed to smoothly convey products. Flow of material is adjustable, and flow rate can be variable or fixed. Available in electric- or air-operated models, the heavy-duty vibratory feeders are designed with above-, below-, or side-mounted drives and can be arranged for base mounting or overhead suspension. The feeders are available in custom vibrating trough lengths, with special trough designs available. Several basic models are available including air-operated light duty, air-operated heavy duty, twin-motor vibrating pan and grizzly feeders, electromagnetic, twin motor, and special application feeders.
Metso, Brunswick, OH 800-827-9237 www.bestvibes.com

Bulk Bag Discharging System with Vibratory Feeder 
This modular Material Master bulk bag discharging system offers patented technology and features that maximize production efficiency. A Sure-Seal pneumatic discharge spout clamping system ensures dust-tight operation, while a Flo-Master bag massaging system delivers product to a high-deflection vibratory feeder. A loss-in-weight scale system combined with variable speed vibratory feeder controls provide an adjustable feed rate into the customers’ existing process. A Flo-Lock slide gate quickly halts material flow for partial bag discharge.
Material Transfer & Storage Inc., Allegan, MI 800-836-7068 www.materialtransfer.com

Micro Batch Feeders 
Modern processes demand accurate feeding of several products in batch - as well as in continuous processes. In its basic version the feeder is a volumetric screw feeder with a separate homogenizer tool to assure a proper and regular filling ratio of the extracting screw. In combination with weighing equipment and computer-aided control, this feeder range turns into gravimetric dosing units, used in batch processes for minor and/or major components up to fully controlled master/slave feeding units for multiple ingredients in percentage related dosing processes in continuous manufacturing.  
WAM Inc., Fort Worth, TX  817-232-2678 www.waminc.com

Micro-Feeder  
The dust-tight MZMA micro-feeder for free-flowing and non-free-flowing materials is designed for mealy, floury, and granular materials, and ideally suited for handling flours, starch, and vitamin premixes. The large capacity allows throughput rates ranging from 200 to 3500 lb/hr. The frequency-converter-controlled drive enables the material feed rate to be easy and accurately selected. The mixing hopper incorporates rotating elements that loosen the product and ensure a constant rate of material feed to the feed screw. 
Buhler Inc., Plymouth, MN  763-847-9900  www.buhlergroup.com

Continuous Weigh Feeders  
Better-Weigh continuous feeders are ideal for gravimetric feeding of dry bulk materials where it is necessary to determine actual feed rates on a loss-of-weight basis. Available in seven models with feed rates from 1 to 550 cu ft/hr (larger sizes available), these feeders are designed to provide feeding in either batch or continuous mode. In batch mode, the batch controller is used to control the fast (bulk) and slow (dribble) speeds of the feeder. Accuracies of ±0.5% can be easily achieved in 2-lb or less batches, and ±0.25% with 3-lb or greater batches with time spans of 30 to 90 seconds. In continuous mode, the feeder’s electronic controller is used to constantly monitor loss of weight of material per time in order to maintain a continuous loss of weight with an accuracy of ±0.25% to 0.50%.
Metalfab Inc., Vernon, NJ 800-764-2999  www.metalfabinc.com

Volumetric Powder Feeders 
This line of precise powder feeders provides varying capacities equipped to handle a wide range of material bulk densities at low to medium feed rates. Each of the three machines in the line are engineered with the patented U-Trough hopper and feed section that provides a means for metering difficult-to-control powders. The geometry of the trough and agitator de-aerate and contain the powder on initial fill to help prevent flooding. The independently driven agitator maintains optimum material conditioning while screw speed can vary to control flow rate. 
Thayer Scale, Pembroke, MA  781-826-8101 www.thayerscale.com

Continuous Loss-in-Weight Feeding System 
The AccuMeter series continuous loss-in-weight feeding system can meter most pellets, regrind, and powders into the process, even at low levels (>50 g/hr). This system will improve overall product quality and reduce material usage caused by over-feeding, resulting in reduced product costs. The system features a modular, compact design that provides complete flexibility for changes in your process. Pellets, micro-pellets, powders, and regrind are all accurately metered, while twin-screw feeders and special agitators are also available for non free-flowing materials. 
Colortronic North America Inc., New Berlin, WI 262-641-8600  www.colortronicna.com

Gravimetric/Volumetric Feeder
Designed specifically for low feed rate applications, the PureFeed AI-300 feeder includes the following features: quick and easy disassembly; a dual-arm external agitation system for maximizing material handling versatility; a disposable, recyclable EPDM feed hopper. That means simpler, shorter cleaning cycles and virtually no chance of cross contamination when moving from one dry bulk solids material to another. The AI-300 also features a stepper motor that allows users to change the penetration agitation speed on the hopper of the feeder without making any mechanical adjustments. The unit is available in volumetric and gravimetric configurations.  
Schenck AccuRate, Whitewater, WI 800-558-0184  www.accuratefeeders.com

Weigh Screw Feeder 
Continuous flow measurement is accomplished with a cantilevered screw feeder with pivot centered under the in-feed of the feeder with the feeder suspended from a load cell hung from the discharge end. Flow rates range from 7-170 cu m/hr with a turndown ratio of 5:1. Accuracy rate is +/-1% full scale. 
APEC, Lake Odessa, MI  616-374-1000 www.apecusa.com

Blow-Through Feeder/Airlock  
The BT Series blow-through feeder/airlock is designed to ensure optimal bulk density and throughput of hard-to-convey materials such as fine powders and flakes that, in high-pressure pneumatic conveying applications, can easily over-aerate and reduce material feed efficiency. The design decreases excess aeration of the material during conveying with an integrated vent port on the return side of the valve housing that automatically vents air leakage. The BT Series 8-vane rotary valve design reduces air leakage and maximizes the flow path of air through the rotor pocket, improving material pocket release. 
ACS Valves, Caledonia, ON, Canada 800-655-3447  www.acsvalves.com

Pneumatic Vibratory Tube Feeders 
CT-A air-powered vibratory tube feeders control the flow of powdered solids through a completely enclosed tray design that is free from moving parts to keep powered metals or other powdered solids safe from contamination, loss from dusting and degradation. The Model CT-A-236-125 vibratory tube feeder offers rugged 304 stainless steel construction inside its 36-in.-long by 2-in.-diam tube and all powdered product contact areas. A below-mounted quiet, air cushioned vibrator drive has a coated bore and nitrofusion piston and enables continuous operation at maximum force outputs for conveyance of 200 to 800 lb of metal powders per hour. Constructed for powder processing environments, the CT-A tube feeder is both explosion proof and low maintenance with its permanently lubricated, air powered drive and protective exterior coatings. Cleveland Vibrator Co., Cleveland, OH 800-221-3298  www.clevelandvibrator.com

Wireless Hand Held User Interface  
Users can easily operate and calibrate their weighing and feeding equipment with this wireless hand held user interface for the latest generation Genetix controls. The hand held display utilizes the standard Genetix user interface to enable operation or maintenance personnel to freely move about their plant while operating, calibrating, or troubleshooting any Genetix Core Module (GCM) within Bluetooth range of the hand held. The Bluetooth wireless interface ensures reliable communications with an industrial environment. The Genetix hand held display automatically creates a list of feeders and scales within range. The user can quickly connect to any feeder or scale by picking them from the discovery list. The same functionality is available with the hand held display as with permanently-wired LCD and color touch screen user interfaces. The Genetix hand held is equipped with a rechargeable battery pack and charger. 
Merrick, Lynn Haven, FL  800-345-8440 www.merrick-inc.com

Dual-Feed Screw Feeder 
The PosiPortion feeder offers a 2-in-1 feed screw option that improves batch accuracy without compromising speed. A two-speed delivery scheme consisting of a fast turning “bulk-mode” and a slower “dribble-mode” are used to meet batch set points. Additional Hapman equipment can be paired with this system for further cost savings.  
Hapman, Kalamazoo, MI 800-427-6260 www.hapman.com

CentriFeeder 
The CentriFeeder with Integrated Control Valve (ICV) is both a controlled feed device and a mass flow measurement device in a single multi-functioning unit that will accurately measure and control the flow of any dry, free-flowing solid. Using a highly customizable touch screen HMI equipped with an integrated servo, (low rpm, AC, brushless) a PID control loop is established to control the ICV feeding the patented CentriFlow meter. For precise measurement and control, an Integral Linear Position Sensor is used to regulate the blade’s position to within 1 part in 1000 (based on stroke). For delicate products, the unit is equipped with a Virtual Flow Stop function that stops flow with virtually no damage to your product. 
Eastern Instruments, Wilmington, NC 910-392-2490  www.easterninstruments.com

Vibratory Feeder 
The GYRO bin activating feeder produces 360 degrees of pure gyratory motion to discharge granular materials from bins, storage silos, and hoppers at any desired feed rate. At the heart of the feeder is the drive that produces 360 degrees of radial force, creating a uniform circular motion on all parts of the feeder. It is this annular radial vibratory motion that imparts the ultimate force, assuring a constant and reliable material flow. This also minimizes any material stratification in the storage silo or bin and develops a predictable and positive flow of material upon demand. The GYRO bin activating feeder can operate either continuously or as a start and stop operation that might be required for more sophisticated process applications.  
Dynamic Air Inc., St. Paul, MN 651-484-2900 www.dynamicair.com