The recipes preparation process for rubber and plastic production to be efficient requires a constant monitoring of weighing precision, repeatability, traceability and above all the safety in handling harmful powders. Elements, that accompanied by high productivity are essential to guarantee an efficient process. LAWER supports rubber and plastic producers with automatic systems for weighing powders, which guarantee high productivity, constant quality and complete process traceability and at the same time eliminate risk factors such as preparation errors and product contact.