Gravimetric Feeders for Powder Flow Control

Gravimetric Feeders for Powder Flow Control
Thayer Scale, with seventy years of experience, offers the broadest range of loss in weight feeder systems of any manufacturer. Each of its high-performing feeders provides precision-class accuracy and repeatability in demanding and strenuous process environments.

All Thayer Scale feeders offer integrated material agitation zones, specialized auger designs and a wide range of proprietary feed algorithms to ensure reliable feeding of difficult materials. When paired with one of Thayer Scale’s rugged, counterbalanced platform or cable scales, the combination is a robust gravimetric feeding solution that integrates seamlessly into existing plant processes.

Thayer Scale’s loss-in-weight feeders incorporate a volumetric feeding subsystem designed to provide consistent, reliable metering of the target material at desired flow rates.  (Flow rates may be as low as two grams/minute and as high as 100,000 pounds/hour.) To this volumetric feeder, we pair a fully mass-counterbalanced platform or cable scale designed to provide maximum signal and ensure accurate, reliable weight measurement in the most difficult operating conditions. We offer a powerful set of proprietary add-on accessories designed to solve problematic flow issues, such as bridging, flushing, adhesion, and cohesion. In addition, our instrumentation has powerful software routines specifically aimed at optimizing a feeder’s performance, such as output compensation, disturbance control, linearization, density compensation during refill, temperature compensation, and automated calibrations.

Gravimetric Feeders for Powder Flow Control

Thayer Scale’s loss-in weight feeders provide:

  • Extended operating range
  • Durable scales that withstand abuse
  • A single load cell that can be accessed and/or replaced without removing the feeder/weigh hopper
  • Flexible mounting options: floor-mounted, rotating, stationary, wheeled, forklift-based, suspended
  • Fast access for cleaning
  • Screw augers that can be changed without tools
  • Damage-free handling of delicate and/or fragile materials
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Thayer Scale is a leading global manufacturer of equipment for the continuous weighing industry. Founded in 1949, we provide engineered solutions for the food, energy and ...

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