The new KWS slide gate and screw feeder were constructed using heavy-duty 304 stainless steel to withstand high temperatures of the hot lime stored in the hopper and occasional foreign objects that inevitably travel through the system. The screw feeder trough was equipped with a clean out port to allow maintenance operators to pull out foreign objects with ease. The drive unit produces extreme high torque to power through upset conditions. A KWS torque arm trough end allows the gear reducer to “float” while producing torque. The screw was mass-flow design to promote even withdrawal of material from the hopper and to meter hot lime at a controlled rate. KWS provided a slider base trough end on the tail end of the screw feeder to account for thermal expansion due to high heat.