The No. 5, No. 7 and No. 8 Kani Karan Asia”Sub-A” Flotation Machines are designed for continuous service in laboratory, pilot plants and small scale commercial plants. They are similar in design to the commercial size Kani Karan Asia “Sub-A” Flotation Machines and results achieved in these units can be duplicated in the larger machines. Units can effectively handle coarse, slime free pulps as well as finely ground pulps. Units consist of fabricated steel tanks and superstructure, suspended mechanisms and removable weirs and partitions. AH wearing parts are of hard iron or Decolloy. Superstructure also serves as distribution supply for addition of low pressure air if desired. Units can be operated on self-induced air if desired. Anti-friction type bearings are carried in lightweight aluminum spindle-bearing housing. Entire assembly consisting of sheave, spindle-bearing housing, standpipe and flotation mechanism can be removed from the cell as a single unit.Machines may be operated with individual cell pulp level control for selective flotation and cleaning operations. The intermediate weirs and feed pipes may be removed for open, free-flow operation which isjdesirable for rougher and scavenaging recovery processes. All machines are available in 2, 4, 6, or 8 cell units with individual or dual cell drives. Acid and corrosive proof construction available. Individual cell units of cast iron construction are also available in the No. 5 and No. 7 size. Two or more cells may be coupled together for series operation.