Hartmann Controls is a U.S.-based manufacturer of industrial and mobile hydraulic pumps, motors and fluid power solutions with decades of engineering heritage. The company specializes in open-loop variable displacement piston pumps, axial piston drives and modular hydraulic components designed for demanding industrial environments. Hartmann hydraulics are widely used across construction equipment, energy units, marine systems, metals processing, material handling and heavy machinery where robust performance, serviceability and reliability under high pressure are required. Its modular designs allow tailored configurations and efficient field maintenance for complex hydraulic drive systems.