New loss-in-weight portable bin unloaders have been designed for the accurate discharging and metering of material stored and transported in either side or bottom discharge portable bins. The system can be configured for either continuous loss in weight feeding or batch. Weighing is done through a patented low-deflection, non-wearing force-measurement-suspension-system flexure scale, which measures vertical loading and can take high load directed overloads (1,000 percent). The scale design uses counterweights to negate the tare weight of the support structure, feeder, and bin. As a result, 100 percent of the scale capacity is used to weigh material, allowing the best possible weight signal resolution.
Thayer Scale-Hyer Industries Inc., Pembroke, MA; 781-826-8101