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loss-in-weight feeding

Weigh Feeders

Weigh Feeders (loss-in-weight feeding) Gravimetric Feeders Overview

Model 400 Series “Weight–Loss Differential” Weigh Feeders | Gravimetric Feeders Overview

Acrison’s various Model 400 Series of Weigh Feeders, Gravimetric Feeders operate on a ‘Weight-Loss-Differential’ (or loss-in-weight feeding) basis; they are designed with an integral Acrison dry solids feeder, or a positive displacement liquid pump, as the metering mechanism of these precision all-digital weigh feeders, precisely controlled by an Acrison designed and manufactured advanced state-of-the-art controller.

‘Weight-Loss’ weigh feeders, gravimetric feeders operate strictly on the basis of the loss of a specific amount of weight (product) in a specific amount of time.  There are no other factors that enter the equation.  Such weigh feeders do not utilize a ‘zero reference’ as the basis for feed rate calibration; they operate strictly on the basis of ‘weight-loss’ over time.

Today, it is a well accepted fact that loss-in-weigh feeding offers a very precise and highly dependable method for continuous metering by weight, assuming that the weigh feeder encompasses a proven, totally viable weighing system, a reliable and versatile dry solids or liquid metering mechanism, and a control system that incorporates all of the latest technologies and algorithms for optimization of performance.

In particular, the weighing system of a ‘Weight-Loss’ weigh feeder, especially when operating 24/7, must remain precise, even when installed in the typically adverse industrial environment.  It cannot in any way be delicate, temperamental, and/or require frequent calibration or adjustment to maintain its ability to perform accurately; it must be extremely reliable, durable and dependable.  Acrison retains a clear leadership position in this critical area of ‘weight-loss’ weigh feeder design, offering permanently calibrated, adjustment-free weighing systems globally recognized throughout the Processing Industries for their highly accurate and stable performance, for their innate ability to remain precise, and for their exceptional durability and longevity.

Acrison is the only manufacturer to offer an unconditional five (5) year guarantee on the entire weighing mechanism of its various model weigh feeders, gravimetric feeders including the associated electronics.


Weight Loss Differential Weigh Feeders (Model 403 Series)Weight Loss Differential Weigh Feeders (Model 403 Series) Weight-Loss Differential Weigh Feeders (Models 402/404 Series & Models 405 & 406)Weight-Loss Differential Weigh Feeders (Models 402/404 Series & Models 405 & 406)
Weight-Loss Differential Weigh Feeders (Model 407 Series)Weight-Loss Differential Weigh Feeders (Model 407 Series) Batch/Dump Weighing Systems (Model 403(D))Batch/Dump Weighing Systems
(Model 403(D))



Model 200 Series Dry Solids Weigh Feeders / Gravimetric Feeders Overview

Acrison’s various Model 200 Series of Dry Solids Weigh Feeders, Gravimetric Feeders are available in several different operational configurations, although they all function on the same basic principle of operation; a “Zero Reference” is utilized as the basis for feed rate calibration. The Model 200 Series of Weigh feeders are designed with an all-digital weighing and control system.

The weighing system of any weigh feeder is crucial to its performance; it cannot in any way be delicate, temperamental, require frequent calibration and/or adjustment to remain accurate.  Acrison retains a leadership position in this critical area of equipment design, offering permanently calibrated and adjustment-free weighing systems globally recognized throughout the Processing Industries for their highly accurate performance capability, durability and exceptional longevity.

Acrison is the only manufacturer to offer an unconditional five (5) year guarantee on its entire weighing mechanism including the associated electronics.


Weigh Belt Weigh Feeders (Model 203 Series)Weigh Belt Weigh Feeders (Model 203 Series) Weigh Auger Weigh Feeders (Model 203B Series)Weigh Auger Weigh Feeders (Model 203B Series)
Weigh Belt Weighers/Feeders (Model 260 Series)Weigh Belt Weighers/Feeders (Model 260 Series) In-Line Weigh Feeder Modules (Model 270 Series)In-Line Weigh Feeder Modules (Model 270 Series)

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Acrison Weighing Systems -Theory of Operation/Functional Insight

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