Scaletron Industries, Ltd.’s Model VMF-90A^™ Volumetric Screw Feeder is designed for automated additive dosing in water and chemical treatment processes. It retains the functionality and user friendly features of the popular VMF-28 feeder, but has been re-engineered for cost-savings and versatility. For feeding dry powdered or pelletized materials, it achieves feed rates of up to 10.19 cubic feet/ hour. The unit uses gravimetric feeding enhanced with a built-in mechanical, cam-actuated hopper agitator. If additional agitation is needed, an external vibrator can be added. With a corrosion-resistant stainless steel frame, the VMF-90A feeder is rugged and durable. The stainless steel hopper has a capacity of 1.5 cubic feet. A stainless steel auger (0.50-, 0.75- or 1.5-inch [1.27-, 1.90- or 3.81-cm] diameter) with bayonet-style connection enhances a steady feed rate. The feeder is water and dust proof and controls are housed in a NEMA 4X, UL-approved enclosure. The 90-VDC motor is right-angle geared and wash-down ready. http://www.scaletronscales.com, (800) 257-5911