The Screw Press Sludge Dewatering Machine market is principally divided by type, with three principal configurations: single‑screw press, twin‑screw press, and multi‑screw press. The single‑screw design, characterized by a solitary helical rotor, offers lower capital cost and simpler maintenance, making it attractive for small‑scale municipal plants; it currently accounts for roughly 35 % of total installed capacity. The twin‑screw press employs two intermeshing rotors, delivering higher dewatering efficiency and reduced cake moisture, which drives its adoption in medium‑size industrial facilities and contributes about 45 % of market volume. Multi‑screw systems, featuring three or more rotors, provide the highest throughput and can handle heterogeneous sludge streams, but their complexity raises acquisition and operational expenses; they represent the remaining 20 % of the market. Each type’s share reflects a balance between performance requirements, capital availability, and operational risk, collectively shaping the overall market size for screw press technology.