Coarse Material Washers Flexibility to meet your toughest demands is designed into each coarse material washer.  Bolt-on paddle and flight assemblies over almost the entire length of the shaft allow you to fully customize your KPI-JCI coarse material washer.  Also, higher efficiency gear reducers allow you to produce more material with less overhead.  Sizes range from 24" to 48" diameter with single and double shaft options available.