K-Tron Process Group offers ActiFlow. It prevents bridging and rat-holing of cohesive materials in stainless steel hoppers, according to the company. ActiFlow is a non-product contact device, for applications in which ingredients do not easily flow or are cohesive, according to the company. The use of mechanical agitators with secondary motors and gearboxes is not needed with this product, and it also eliminates the need for flexible side wall agitation devices and aeration pads. According to K-Tron, ActiFlow also simplifies the cleaning process during material changeover and reduces headroom requirements.