From receiving to primary and secondary treatment, Baldwin Supply has the products and expertise to help you with your most difficult challenges. Our product offering covers; Screw, Belt and Drag Chain Conveyors, Aeration Motors, Gear Reducers, and Bearings from the brands you know. Rexnord, Hitachi, Siemens, ABB, and NSK. Ask about our recent installation of ABB VFD's at Des Moines Water Works and the energy savings we achieved.