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Weighing Spotlight - October 2010
October 19, 2010
7 Min Read
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Portable Floor Scale
The DeckHand portable floor scale has a battery-operated weigh indicator and folding ramp for weighing drums containing chemicals, paints, and powders. It is ideally suited for general drum weighing and counting applications around the plant or job site including receiving, production, and shipping departments. Featuring a non-skid top plate, two wheels, and a folding ramp, this portable floor scale has a full function weigh indicator that lets users enter a known value or tare for their loads and has a 5-digit, 1-in-high LCD display. Available in 500-, 1000-, and 2000-lb-capacities, the scale’s platform measures 31 x 41 x 4.5 in. and is made from steel or stainless steel. Alliance Scale Inc., Canton, MA 800-343-6802 www.alliancescale.com
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Gross Weigh Bagging ScaleIdeal for hand-bagging seeds, feed, fertilizer, dry sand, or any other free-flowing product, the Model 100GW is an all new design featuring a dual load cell system. This design provides better weighing accuracy and faster processing speeds than comparable models. Bagging rates up to 16 bags/min can be attained on a compact gross weigh scale. The all-steel design is powder-coated for long life in demanding industrial applications. The bag clamp features an exclusive bag position window so operators don’t have to guess if the bag is in position before releasing product. Hamer Inc., Plymouth, MN 800-927-4674 www.hamerinc.com
Belt Scale
The BEMP single idler belt scale is used for weighing and totalizing continuous flow rates of bulk solid materials up to 15,000 tn/hr. Whether your conveyor uses 18- or 60-in.-wide CEMA idlers, the scale easily mounts to your conveyor frame using only four bolts. Utilizing two NTEP-approved single point load cells with rated capacities up to 660 lb and the INTECONT Satus Integrator, accuracies of ±1% of totalized weight are possible. Fieldbus connections to your process supervisor are also available. Schenck AccuRate, Whitewater, WI 800-558-0184 www.accuratefeeders.com
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Truck ScaleSRC Guardian hydraulic truck scale is a long-lasting, in-ground, NTEP legal-for-trade scale for heavy-duty weighing. This full-platform scale utilizes hydraulic load cells that are invulnerable to all major common truck scale problems, such as lightning damage, electrical surges, water damage, and rodent damage. The concrete deck of the scale is installed flush with the ground surface for easy access by heavy vehicles. The heart of a hydraulic load cell is a drop of oil. A total of ½ pint of oil is all that is needed in one complete hydraulic truck scale, so no electrical circuits are necessary in a Guardian. That is why this truck scale carries a true lifetime warranty and comes ready for hostile environments. Cardinal Scale Mfg. Co., Webb City, MO 800-441-4237 www.CardinalScale.com
Washdown Balance
The Signum Line now combines precision weighing with full wash-down protection. Signum 3- and 6-kg-capacity scales offer 0.01-g readability, 14-segment bright backlit displays, memory for up to 300 products, and over 600 lb of overload protection - allowing them to provide accurate results not just in the laboratory, but directly in your production areas. Sartorius, Bohemia, NY 631-254-4249 www.sartorius-mechatronics.com
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Net WeigherThe BEST Model NW-50 food-grade net-carton-filling system feeds 20-30 lb of snack-food chips to 16 x 20-in. cartons at four cartons per minute with an accuracy of ±0.1 lb. Cartons are indexed into position, filled, vibrated, and moved out on a powered-roller conveyor. The machine features rugged, long-lasting components that require minimum maintenance. Metso Minerals Industries Inc., Brunswick, OH 800-827-9237 www.bestvibes.com
Bulk Bag Manual Dump Weigh Batch System
This combination bulk bag and manual dump batching system weighs bulk materials that are discharged from bulk bags and/or manually dumped from sacks, boxes, and other containers, and empties the batch into mobile storage bins. The sanitary system consists of a bulk bag unloading frame, two hoppers, and two flexible screw conveyors that feed a central gain-in-weight hopper under automated control. A programmable controller with manual start button activates either of the flexible screw conveyors to load the first ingredient into the central weigh hopper at maximum feed rate. Load cells supporting the hopper transmit weight gain information to the controller, which steps-down the feed rate to dribble prior to reaching the target weight. In the same manner, the controller starts and stops the second conveyor to load the second ingredient into the weigh hopper, and then activates the hopper’s slide gate valve to discharge the batch into mobile storage bins. Flexicon Corp., Bethlehem, PA 888-353-9426 www.flexicon.com
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Weigh Screw FeederThis weigh screw feeder accomplishes continuous flow measurement 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. Sized for flow rates from 7-170 cu m/hr, it has a turn down ratio of 5:1. It delivers accuracy of ±1% full scale on virtually all free-flowing solids with a wide range of densities. Optional close tolerance construction of the feeder and low RPM are used to minimize breakage of fragile materials. Each unit comes with support frame, flanged inlet transition with flexible connector, load cell with mounting hardware, and TEFC motor with gear/belt reducer. The feeder is constructed of mild steel with stainless steel optional. APEC, Lake Odessa, MI 616-374-1000 www.apecusa.com
Modular Weighing System
The Accu-Portion modular weighing system maintains accuracy to one-tenth of one percent regardless of supply bin capacity (standard from 0.5 to 100 cu ft) or the quantity of automated ingredients. Modules are capable of feeding and weighing 1 to 12 ingredients, and they can be combined to provide 32 or more materials/ingredients within a system while processing multiple scales simultaneously and maximizing production speed. Modules are available in multiple supply bin configurations and scale hopper designs, eliminating product cross-contamination. These modular designs allow for system expansion or modification. PC/PLCs provide real-time batching data such as weights, batching status, alarm conditions, and batch history. Prater-Sterling, Bolingbrook, IL 630-759-9595 www.prater-sterling.com
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Mass Flow MeterThe CentriFlow solid particle mass flow meter can accurately measure a variety of bulk solids continuously in a process and will typically offer an accuracy of within ±0.25% of full scale. For both flow measurement and control, the unit combines the patented flow measurement technology of the CentriFlow with an integrated control valve and will accurately measure and control the flow of any granular, free-flowing solids. Both instruments utilize large, color, touch-screen HMIs that feature easy, push-button calibration and real-time displays of both flow rate and total that are ideal for a variety of applications, including batching, blending, ratio control, bag filling, multiple product recipe blending, and more. Eastern Instruments, Wilmington, NC 910-392-2490 www.easterninstruments.com
NTEP-Certified Weigh System for Bulk Bag Filling
This fully automated bulk bag-filling system provides NTEP-certified bulk bag weighing, accurate to +/-.01% up to a total bulk bag fill weight of 4500 lb. Design-stage integration of NTEP-certified weigh devices and proper calibration and fabrication during original system construction ensure precise, NTEP-certified weigh accuracy and repeatability. The possibility of variable weight outcomes and material waste from bolt-on load cells or third-party NTEP scale components is eliminated. The system meets rigorous certification testing standards, including producing over 7000 consecutive weigh cycles, each within a +/-.01% weight accuracy tolerance. National Bulk Equipment Inc., Holland, MI 616-399-2220 www.nbe-inc.com
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Digital Load CellsSmart Force Transducer digital load cells incorporate exclusive filtering algorithms that continuously identify and extract spurious weight readings from the weight measurement, even in severe process environments. Precise feeding, batching, and metering of bulk solids begins with precision weighing. Achieving high gravimetric feeding performance in the process line requires discriminating between material weight data and the contaminating effects of forces induced from ambient vibration and shock. K-Tron Process Group, Pitman, NJ 856-589-0500 www.ktron.com
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