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Feeders

May 12, 2011

Vibratory Boot-Mounted Rotary Feeders
This line of boot-mounted rotary feeders can be retrofitted on existing bucket conveyors or bucket elevators from 9 to 48 in. wide for added flexibility and productivity. This allows customers to expand their existing bulk materials handling process and enhance their production capabilities with minimal investment. The feeders are powered by two vibratory motors mounted directly onto the load unit of existing bucket conveyors or elevators. This assures a controlled, consistent, and effective fill and expands the capabilities for both Swinglink heavy-duty bucket elevators and the Econ-O-Lift bucket conveyors. Gough Econ, Charlotte, NC 800-264-6844 www.goughecon.com

USDA-Accepted Vibratory Feeder
The SolidsFlow USDA vibratory feeder was designed specifically for use in the food and dairy industries where equipment and processes must meet stringent sanitary levels. All welds, radii, seals, surface finishes, gaskets, contact and non-contact materials are compliant to USDA standards. A two-piece V-banded 304 stainless steel feed tray splits apart for easy detachment and cleaning. The domed hopper cover speeds and optimizes drainage during and after wash-down cycles. This feeder handles a wide variety of dry bulk solids including friable materials such as nuts, powders like cellulose, and granular-shaped additives like salt or sugar. It is offered in volumetric and gravimetric configurations with feed rates up to 350 cu ft/hr. Schenck AccuRate, Whitewater, WI 800-558-0184 www.accuratefeeders.com

Powder Feeder
The PFM-S powder feeder offers precise and reliable feeding of cohesive, easily aerated, and difficult-to-control powders. It handles a wide range of material bulk densities at low to medium feed rates. The patented U-Trough hopper and feed section provides a practical and economical means for metering difficult powders. The geometry of the trough and agitator effectively 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. Material does not build up within the trough or within the continuous screw tube, preventing blinding or erratic feed. This combination along with a selection of screw sizes and types allows material to be fed with an accuracy of ±1.0 to 2% of set rate. Feed rates up to 25 cu ft/hr at a material bulk density of 50 lb/cu ft are possible. Thayer Scale, Pembroke, MA 781-826-8101 www.thayerscale.com

Compact Electromagnet Feeders
Eriez has developed an eco-certification designation for its entire line of Hi-Vi compact electromagnetic feeders. These feeders have a positive impact on recycling processes and the recycling industry. They are manufactured with energy-savings features, including the use of energy-free permanent magnets, keeping power consumption low. The feeders are built in a facility that focuses on recycling consumables, driving down energy usage and drastically reducing solid landfill waste. With their totally enclosed patented magnetic drive, these feeders can feed practically any bulk material from micron size to bulky chunks. Solid-state controls operate the feeders with “watch-like” precision while keeping power consumption to a minimum to save energy. Eriez, Erie, PA 888-300-3743 www.eriez.com

Weigh Feeders
Model 407 series “weight-loss” weigh feeders feature a compact design with a small footprint resulting in low overall space requirements. Yet, the Model 407 Series is versatile, and it is available with a variety of metering mechanisms capable of feeding a broad range of even the most difficult-handling dry solids materials. The feeders incorporate a robust design that features a high-resolution, “non-load cell”-based weighing mechanism that never requires field calibration or adjustment. The weighing system, including its associated electronics, is unconditionally guaranteed for five full years. Acrison Inc., Moonachie, NJ 201-440-8300 www.acrison.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 depending upon the arrangement of the feeder’s control electronics. 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%. Standard features include a platform or lever balance scale, sealed tactile keyboard, 7-digit numerical keyboard, automatic manual batching, and a 2- or 5-cu-ft hopper. Sanitary construction is also available. Metalfab Inc., Vernon, NJ 800-764-2999 www.metalfabinc.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. Feeders come 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

Brushed Stainless Steel Powder Feeder
The PF Series powder feeder offers operators high metering accuracy from ultra low rates up to 3000 lb/hr. A round-to-trough feeding area is incorporated into the brushed stainless steel design that provides more consistent mass flow for better metering accuracy. The PF Series can be configured with controls for intermittent agitator operation, which is particularly useful when operating at very low rates. The feeder is designed with a steep wall, removable hopper that features a dust-tight band clamp for easy mounting of hopper extensions and quick disassembly for clean out. The bottom trough is optimized to provide maximum material exposure to the auger. The metering accuracy of the feeder is enhanced by a proprietary filtering method that allows accurate and consistent gravimetric metering in the presence of ambient vibration and electrical noise. Process Control Corp., Atlanta, GA 770-449-8810 www.process-control.com

Vibratory Pan Feeder
The Kraus L-Series vibratory pan feeder feeds almost any granular material from abrasive silica sand to very fine granular powders. Applications include weighing and batching where feed control is essential. It is ideal for feeding coolers, dryers, belt conveyors, bucket elevators, weigh hoppers, continuous process systems, and continuous mixers. The feeder can be operated with a variable speed controller or in a fixed rate application. It can be stopped instantly without any dynamic movement as seen with a typical electric vibrating motor. Because it is air operated and requires no motor starters, it is ideal for explosion proof atmospheres. In addition, the feeder is low in cost and maintenance. The heavy-duty construction is available in mild steel, abrasion resistant steel, or stainless steel. Stainless steel construction is available in polished or mill finish. Dynamic Air Inc., St. Paul, MN 651-484-2900 www.dynamicair.com

Continuous Loss-In-Weight Feeding System
Most pellets, regrind, and powders can be metered into the process, even at very low levels (>50 g/hr). The AccuMeter series continuous loss-in-weight feeding 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. Self-calibration eliminates the need to take manual weight samples or calibrations. Material changeovers are quick and easy, saving time, labor, and money. Colortronic North America Inc., Flint, MI 810-720-7300 www.colortronicna.com

Gravimetric Additive Feeder
The AF-1000 Series gravimetric additive feeder provides accurate metering of additives as well as material usage tracking, which can be utilized in all molding and extrusion applications for pelletized materials. The feeder adds colorant or other free-flowing material to your process, based on a self-calibrating gravimetric controller. This eliminates the over-feeding that typically accompanies volumetric feeders and make recalibration unnecessary. Consistent, accurate operation and repeatability, even at low output rates, provide savings in additive consumption, offering a quick payback time. There is automatic, self-adjustment if there is a deviation from the set additive weight, and automatic calibration makes the AF-1000 series simple and easy to use, and flow rate is calculated in percentage or kg/hr for extruders. AEC Inc., Schaumburg, IL 847-273-7700 www.aecinternet.com

Volumetric Additive Feeder
This volumetric screw additive feeder meters color concentrate, regrind, or other additives. The feeder features modular design for one or two materials with an interchangeable stainless steel auger assembly. It benefits from performance-driven design features such as 1/10 hp DC motor, closed loop motor control, and a low-profile, 6-in. throat with inspection windows. The feeder also features a convenient sample hatch for greater calibration, a swing-out drain cover for easy clean out, and rugged, easy-to-clean stainless steel augers with interchangeable UHMW polyethylene inserts. Sterling, New Berlin, WI 262-641-8610 www.sterlco.com

Feeder with Spreader
The PosiPortion feeder can be equipped with a specially designed, elongated distribution nozzle to satisfy a broad array of general spreading and seasoning applications. This option is ideal for extending into a coating drum, distributing product across a moving conveyor belt, or to optimize filling of wide surge hoppers. Traditional purpose-built equipment with similar performance characteristics can sell for many times more. Hapman, Kalamazoo, MI 800-427-6260 www.hapman.com

Loss-in-Weight Feeders
These loss-in-weight feeders provide accuracies to ±1/4% to 1/2%, weighing ounces to tons, and feeding materials from fine powders to fibrous or flaky materials. Control of batch size and feed time is provided through a

microprocessor based controller that eliminates the effects of plant vibration and electrical noise and the need for vibration dampening devices. The controllers incorporate user-friendly, menu-driven software with membrane keypads and easy-to-read displays. A controlled vibration feeder design for weigh feeding means minimal loss of accuracy during the volumetric refill cycle and high accuracy in the gravimetric mode. The versatile line of weigh feeding devices includes pan or tube feeders, screw feeders, and belt feeders. Vibra Screw Inc., Totowa, NJ, 973-256-7410 www.vibrascrew.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 of 7-170 cu m/hr are possible with a turndown ratio of 5:1. Accuracy rate is ±1% full scale. APEC USA, Lake Odessa, MI 616-374-1000 www.apecusa.com



Weigh Belt Feeder
The Smart Weigh Belt (SWB) feeder is used for continuous controlled gravimetric feeding of free-flowing or friable bulk materials. The feeder can be used for gravimetric batch feeding or for continuous metering of bulk material flow. The SWB features a primary weighbridge and offers an optional secondary weighbridge that provides continuous online auto tare, reducing maintenance, frequency of calibration, and improving long-term stability. Material weight on the primary weigh deck and belt tare weight on the secondary weigh deck are determined by patented SFT III weighing technology with vibration and temperature immunity, zero deflection, and 1 part in 1 million resolution. The SWB is available in 300, 600, 650, 800, and 1000 mm belt widths. The SWB-300 and SWB-600 are supplied as open or closed frame. K-Tron, Pitman, NJ 856-589-0500 www.ktron.com

Rotary Airlock Valves
This new line of cast iron rotary airlock valves features the RotorRail that enables tool-less access to the rotor and all internal surfaces of the housing without time-consuming disassembly of the rotor, or the removal from service of upstream or downstream equipment commonly associated with standard valve configurations. When compared to bolt-together housing designs, the valves reduce rotor service cycle times by 78%, and, as a result, increase total process uptime by 18% during a typical 8-hour operating shift. The RotorRail feature of these cast iron valves also ensures accurate rotor re-alignment during re-assembly, thus, eliminating axial shaft movement, bearing wear and seal leakage, and premature, uneven rotor vane wear. ACS Valves, Caledonia, ON, Canada 800-655-3447 www.acsvalves.com

Rotary Feeders
Precise engineering, durable construction, and high-quality materials ensure that each rotary feeder is precision-designed to help your plant achieve maximum uptime. These feeders come in various sizes. Each feeder has an extra-thick barrel designed to be rebuilt many times before needing replacement. Optional feeder mounting frames are available, with an injector tee, check valve, and bottom knife access door custom designed to fit your line size and center lines. Special materials such as stainless steel or abrasion-resistant Tribraze steel are also available. Feeders can be designed to exact size specifications. A trade-in allowance is offered for used feeders. Precision Machine & Manufacturing Inc., Eugene, OR, 800-722-9841 www.premach.com