Rotor Grinding Mill segmentation by type distinguishes four principal configurations: planetary, vertical, horizontal, and high‑pressure designs. The planetary type, characterized by multiple grinding bodies rotating around a central axis, accounts for roughly 40 % of global shipments because its compact footprint and high energy efficiency suit mid‑size mineral processing plants. The vertical configurations, where the rotor is mounted vertically, represent about 25 % of the market; they excel in handling coarse feed and are preferred in large‑scale cement clinker grinding. Horizontal mills, comprising a horizontally oriented rotor, capture roughly 20 % of sales, driven by their simplicity and lower capital cost, making them attractive for small‑scale chemical grinding. High‑pressure rotor mills, which combine centrifugal force with elevated grinding pressures, occupy the remaining 15 % and are primarily adopted in specialty applications such as fine‑powder metallurgy. Collectively, these type categories define the overall market size by aligning equipment capabilities with plant capacity, feed characteristics, and cost considerations.