Sterling's SGBD Series gravimetric batch-weigh blenders provide precise blends of up to eight free-flowing components. The blenders offer accurate, homogenous blends operating on a gain-in-weight principle, where each component is metered into a batch hopper using a diamond-slide-gate metering device. To provide a homogenous blend, an integral opti-mix, bi-directional mix chamber is incorporated into the base of the blender. The controller includes full blender control diagnostics and storage for up to 50 recipes.