TH-type tangential sand-catcher, standing on ceiling floor structure (TH_._B) Read more ... TH-type tangential sand-catcher, sunk into the floor (TH_._A) Read more ... LAK-HP-type, Pump sand collector Read more ... LAK-HK-type, Bladed sand collector Read more ... HCS-type, sand-catcher with tangent screw (HCS_._A) Read more ... HCS-type, sand-catcher with tangent screw (HCS_._B) Read more ... HV-type, sand-dehydrator Read more ...