Representing a revolutionary new concept for continuous weigh feeding, the Model 270 Series offers processors an economical, precise and reliable method for metering a wide variety of dry solid ingredients at moderate to high rates in an "in-line" vertical configuration.
Developed in direct response to user needs, the Model 270 Series of Weigh Feeders provide accurate and dependable performance in a totally dust-tight, vertical in-line configuration. With their compact design and only one moving part, these novel weigh feeders typically require less installed space than most other type heavy-duty weigh feeders having similar throughput capacities.
In operation, a circular weigh chamber, housing a series of rotating "weigh pockets", is mounted onto an ultra high resolution Acrison weighing system. A separate variable output metering device (or prefeeder), typically a rotary valve or screw type metering mechanism, attached directly to product supply, feeds material into the top inlet of the weigh feeder within which the slowly rotating constant speed "weigh pockets" continuously weigh the product. Material is then discharged through the bottom outlet of the weigh feeder, which is directly (or vertically) in-line with its inlet.
As material is fed into the weigh chamber, a weight signal is produced that is instantaneously calculated into a continuous feed rate by the weigh feeder's controller. Based on this calculation, the controller modulates the speed of the prefeeder so that its output precisely matches the selected feed rate, resulting in an accurate, continuous and uniform flow of material.
Model 270 Series Weigh Feeders utilize Acrison's exclusive counterbalanced weighing system, equipped with Acrison's Ratiometric Digital Weight Resolver for superior weight sensing and trouble-free long-term operation. Thus, because of the counterbalanced design of the weighing system, only the net weight of the material within the feeder's weigh chamber is actually weighed. In turn, optimum weight sensing resolution is realized, producing the highest possible degree of metering accuracy.
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Model 270 Weigh Feeders completely confine the product being metered from inlet to outlet. In addition, side panels completely enclose the entire feeder and its weighing mechanism, prohibiting airborne dust from affecting weigh feeding performance. Portions of the side panels are clear plastic to allow visual observation of the weigh feeder system.
Unlike weighing systems that rely on one or more load cells for sensing weight, Acrison's unique, non-load cell based weighing mechanisms are permanently calibrated and completely adjustment-free. They are also exceptionally robust, virtually maintenance-free mechanisms, well known throughout the processing industries for their dependability and longevity. The entire weighing mechanism is backed with an industry leading unconditional five-year warranty.
Metering accuracy typically ranges between ±0.25 and 1 percent or better (error) at two sigma, based on a given number of consecutive one minute weighments.
For additional information or answers to your questions, please contact us at our office nearest you.
