This micro compounder has a base capacity of 15 ml and can process batch volumes of 3, 7 or 15 ml via proprietary Vari-Batch™ technology. The core of the compounders is a vertically positioned, liquid-tight barrel with two easily detachable, conical mixing screws. Both screws and housing are specially engineered to minimize wear and to resist chemicals in a wide temperature range. The robust design ensures the generation of reproducible and stable data for years. The vertical position of the liquid-tight barrel allows the processing of low viscous fluids down to ca. 10 Pa.s.