Reclaimer or Stacker Reclaimer (SR) is a tool used to pour coal (which is dismantled by ship unloaders) through the conveyor belt to the Coal Yard (called STACKING), as well as take coal from the coal yard to the coal bunker (called RECLAMING).
The reclaimer stackers are similar to Bucket Wheel Excavators (BWE) but are distinguished by semi-automatic or fully automatic controls. The control system used is usually a programmable logic controller, with a human-machine interface for display, which is connected to a central control system.