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Weighing & Batching Systems Spotlight - October 09

October 8, 2009

Chemical-Resistant Balances
The NewClassic balance range replaces the Classic range. Suitable for every weighing need, NewClassic MS features a robust metal housing that is resistant to chemicals. The redesigned user-interface allows for intuitive operation, with new SmartKeys that offer direct access to preferred applications. A modern high-contrast display guarantees error-free reading of results and enhances the user friendliness of the balance.
Mettler Toledo North America, Columbus, OH 614-438-4936 www.mt.com

Load Points
Featuring C2 electronic calibration without heavy test weights, Advantage Lite medium-capacity, compression-type, stainless-steel load sensors are self-checking, free-floating to minimize unwanted forces, and are not limited in their positioning to the vessel for tight installations. Free-floating or self-centering allows the vessel to expand or contract while the critical point of contact of force on the sensor remains the same, thus providing an accurate and consistent weight signal.
Hardy Instruments, San Diego, CA 800 821-5831 www.hardyinstruments.com

Batch Feeder
The GeoMate feeder is ideally suited to batching applications due to the high-frequency output at both the fast and dribble modes of operation. It eliminates the “plopping” associated with screws, thereby providing the highest degree of batching accuracy possible. The unit operates with no moving parts and comes complete with a three-year warranty. It also provides the ability to feed a wide range of products with the same unit.
3Sigma, Charlotte, NC 704-846-1617 www.3sigma.biz

Weigh Feeder Module
The Model 270 weigh feeder offers processors an economical, precise method for accurately metering dry solids ingredients at moderate to high rates in a compact, in-line vertical configuration. With its compact design, small footprint, and minimal height requirements, the Model 270 requires far less installed space than conventional flow meters, weigh belts, or weight-loss type weigh feeders with similar throughput capacities. The unit is designed with only one moving part that continuously weighs and discharges dry solids materials in a completely dust-tight assembly.
Acrison Inc., Moonachie, NJ 201-440-8300 www.acrison.com

Batch and Continuous Feeders
Better-Weigh continuous feeders are used 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 units 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, and 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

Weigh Controller
The T-3000 series controllers incorporate Taylor Products’ container handling and packaging experience with Hardy Instruments’ process control and condition monitoring experience and include the following standard features: a selectable 10/100 BaseT Ethernet port with embedded Web server; the IR port enables wireless connectivity to PDA devices; a standard master DeviceNet interface; built-in diagnostics and automatic preacts combine to ‘auto tune’ the process for maximum efficiency and product throughput; Hardy Waversaver eliminates the effects of vibration on and around the scale; and Hardy SMM (Secure Memory Module) enables a manual transfer of configuration data to another instrument.
Taylor Products, Kansas City, KS 888-882-9567 www.taylorproducts.com

Gravimetric Batch Feeder
This screw feeder combines the versatility of flexible hopper technology with a 2-in-1 feed screw option that improves gravimetric batch accuracy. Historically, users had to choose between speed and accuracy: a screw large enough to provide the desired batch speed also caused feeders to routinely overshoot the set point with varying results. However, because the PosiPortion feeder actually uses two independently driven screws, situated one inside of the other, it is capable of delivering precision batches fast.
Hapman, Kalamazoo, MI 800-427-6260 www.ideasthatmove.com

Weigh Belt Feeders
For use in applications where precision weighing and metering of dry materials is required, DEA stainless-steel weigh belt feeders provide weight-controlled feeding, weight indication, and totalization for fragile (friable) materials like cereals, snack foods, kibble, fruits, pasta, and fibers. These feeders are offered in 12- and 24-in. belt widths with easy belt detensioning and removal, BIC (belt weight influence compensation), accuracies of ±0.25 to 1% of set rate sigma, and feed rate capabilities up to 1680 cu ft/hr. For sanitary environments, open-frame models of the weigh belt with washdown capabilities are also available.
Schenck AccuRate, Whitewater, WI 800-606-9248 www.accuratefeeders.com

Net Weigher
The BEST Model NW-50 food-grade net-carton-filling system feeds 20–30 lb of snack food chips to 16 × 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

Precision Weighing Systems
These certified precision weigh systems for bulk bag filling and weigh conveyor applications have received National Type Evaluation Program (NTEP) certificates of conformance for commercial weighing and measuring. NBE NTEP-certified hang weigh, base weigh, and weigh conveyor systems can weigh to an accuracy of ±0.01%. Bulk material processing and packaging operations, regardless of industry or end-market, are being pressured by factors such as tighter customer specifications, increasing material costs, greater process complexities, and stringent inventory and supply chain limitations. These systems help address such factors by providing reliable, repeatable precision-weighed bulk bag filling, properly supplied process lines, and accurately weighed finished packages.
National Bulk Equipment Inc., Holland, MI 616-399-2220 www.nbe-inc.com

Portable Tank Weighing Systems
Moving a tank from station-to-station and from scale-to-scale to add ingredients, mix, and then recheck the weight is now easier and more efficient with STAR compression load cells. These tank-mounted load cells are designed to compensate for out-of-level operation without loss of accuracy, even during agitation cycles. Even off center loads do not impact the weighing stability or display update speed. Tanks up to 2500 lb or more can be moved without damage using on-board load cells.
Sartorius Mechatronics Corp., Bohemia, NY 800-635-2906 www.sartorius.com

Precision Weigh Cells
The slim design SW-FS weigh cells use the principle of Electro-Magnetic Force Restoration (EMFR) with active self-damping to ensure fast sampling. With a weighing range up to 2000 g, an active dead range of 2000 g, and resolutions of up to 0.00005 g, they are ideal for fast, accurate process weighing applications. No A/D conversion is required and direct communication via RS-422 or internal forceless electrical connection ensures high-speed precision. Options for filling algorithm and measuring changeover are available.
Wipotec North America, Marietta, GA 770-971-5414 www.wipotec.com

Bulk-Bag-to-Bin Weigh Batching System
This dust-free bulk bag weigh batching system discharges material from bulk bags, de-lumps the product, and feeds it gravimetrically into rigid bins. It features a manual Spout-Lock clamp ring at the top of a pneumatically-actuated Tele-Tube telescoping tube, providing a high-integrity, sealed connection between the clean side of the bag spout and the clean side of the hopper, and automatic elongation of the bag as it empties to promote flow and evacuation. Above the connection point is a Power-Cincher pneumatically actuated flow control valve that cinches the bag spout concentrically, allowing dust-free retying of partially empty bags. Flow-Flexer bag activators raise and lower opposite bottom edges of the bag, promoting material flow into the bag discharge spout. A low-profile de-lumping device breaks-up agglomerates and discharges into a gravimetric feeder connected via PLC to a floor scale, allowing accurate batch weights to be loaded into rigid totes placed on the scale.
Flexicon Corp., Bethlehem, PA 888-353-9426 www.flexicon.com