When sourcing a Triple Roll Mill, the most critical technical factor is the roller material. For high-purity applications like cosmetics or electronics, ceramic rollers (Alumina or Zirconia) are essential to prevent metal contamination. For industrial inks or paints, hardened alloy steel or chilled cast iron provides the necessary durability. Additionally, evaluate the roller diameter and length, as these directly determine the throughput capacity and cooling efficiency. Ensure the machine features a precise manual or hydraulic gap adjustment system capable of reaching micron-level fineness (1-5μm).