Bin injectors are used to promote the flow of bulk powders from a storage vessel without the noise and damaging vibration caused by pneumatic or electric vibrators. Unlike aerator pads or diffusers, bin injectors are less likely to clog due to moisture and can be more effective as they direct air flow to "sweep" the bin wall. Bin injectors are mounted from outside of the bin, making them ideal for replacing worn and plugged air pads. In addition, bin injectors require very little maintenance.