Gravimetric Dosing Mixing System

A gravimetric batch blending unit doses raw material, additives, and masterbatch by weight rather than volume, then mixes the ingredients to a set recipe before discharging a homogeneous batch to an extruder or injection molding machine. Unlike volumetric systems that measure material base on feeder speed or volume, a gravimetric dosing unit uses load cells to measure the actual weight of each component before it is added to the batch. This makes the process more consistent, particularly when working with materials that have variations in bulk density, particle size, moisture content, or flow characteristics.

Since each component is weighed individually prior to blending, Gravimetric batch blender deliver tighter dosing accuracy, better repeatability and lower waste, which is why they've become the standard choice for processors who need consistent part quality and tighter control over resin, additive, and masterbatch costs.

If you're looking into gravimetric batch blender for the first time, a few questions tend to come up again and again - how the systems actually work, what they cost, how they fit into a line you already have running, and how to pick the right size and configuration for your application. We'll walk through all of that