K S SATYA SAI1, K S V S SARATH CHANDRA2, Dept. of Mechanical Engineering, SVPENGINEERING COLLEGE, ... In the process of sinter making the hot sinter machine is fed to the single roller crusher and fed to the rotary cooler. The sinter from the rotary cooler is conveyed to hearth screen to separate +10mm size from fines. The fines also known as return sinter, is recirculated and .