Aggregate. From sticky, high moisture materials to processing operations with water problems, AEI provides the processing solutions to solve your problems. BIVITEC specializes in applications where conventional screens plug, blind, or fail. Eliminate the need for wash screens by screening difficult materials without blinding. VibraScreener is a recognized industry leader in the development and service of industrial screening equipment and technology. We engineered our industrial sieves and screens to be higher quality, more reliable and more cost-effective than any other sifter machine or related tool on the market today. We are committed to continually developing industrial sieves and vibrating screens The BIVITEC Screen achieves these high forces by dynamically tensioning and relaxing the flexible screen mats using a dual vibration principal. Enhanced by resonance, one drive can produce two vibration movements. The screen box is accelerated approximately 2gs while the screen mats can receive up to 50gs.