Sorters can be divided into chute-type and belt-type color sorters. Flow cytometry cell sorters have a collection system unlike flow cytometry analyzers. Sorting can be done manually through carts or conveyor belts, or automatically through sorters. Optical sorters use 2D and 3D technologies to speed sorting. Later several OEM companies built 96-column keypunches, sorters, and collators. Cell sorters are flow cytometers capable of sorting cells according to their characteristics. Color sorters are mostly used in sorting grain (agricultural products). This included semi-skilled and even unskilled workers, such as bottle sorters, helpers, and packers. Mail sorters can process up to 55,000 #10 envelopes per hour. There is more detection technologies available on industrial scale sensor-based ore sorters. Mini-bulk tests are conducted with 1-100t of samples on industrial scale sensor-based ore sorters. Pebble circuits are a very advandageous location for the application of sensor-based ore sorters. This includes the channel-type, bucket-wheel type and cone type sorters. The state-of-the-art mechanism of today's sensor-based ore sorters is a pneumatic ejection. Screens and sorters were used for dry coal.