The 7.2-foot-wide Gemini Series Belt Press from OR-TEC is the largest made by the company and is ideal for the medium- to large-size wastewater treatment plant. The double-belt system is constructed of stainless steel and combines a gravity drainage zone, a squeezing zone, and high-pressure shear zone to provide a large dry solids throughput of up to 1,500 pounds per hour. The unit has a large flocculation tank with a variable-speed mixer, which allows the biosolids and polymer solution to be thoroughly mixed. A single control panel is used, and the system also features electric actuation, so no hydraulics or pneumatics are needed. 216/475-5225; www.or-tec.com