Hydro Design Service Inc is a family owned and operated hydraulic sales, repair and manufacturing company serving Middle Tennessee and surrounding areas. HDS designs, fabricates and repairs customized hydraulic components and systems such as portable or stationary hydraulic power units, test equipment, cylinders, pumps, motors, lifting machinery & oil filtration carts. We also sell hydraulic components and accessories such as hose assemblies, tube assemblies, filters, gauges, flanges, fittings, flat face couplers and more.