Bin Activators Do you need to effectively control the discharge of material from bulk containers? Bin activators and vibratory feeders can control material flow rates and minimize bridging. When you need to control material flow rates and minimize bridging consider the Spiroflow Bin Activator. The vibrating feeder blades are fully adjustable for accurate and repeatable control of solids flow. Energy is imparted directly into the solids by vibrating blades to maintain flow. The close tolerance blades provide positive shut-off of solids flow. Spiroflow bin activators are offered in 12′/ 305mm & 24′/ 610mm sizes as well as custom sizes. Features Controls flow of material Promotes flow of difficult material Vibrating blades minimize bridging Effective shut-off Manual, pneumatic or electric controls Offered in carbon steel or stainless steel