Trotter Manufacturing
Industrial Machinery ManufacturingIllinois, United States11-50 Employees
Trotter Manufacturing, based in Loves Park, Illinois, is an industrial machinery producer specializing in hydraulic valve spools for off-highway equipment OEMs. The company has a long history in spool manufacturing, emphasizing extremely tight tolerances in diameter and cylindricity that enable precise control of high-pressure oil within hydraulic cylinder valves used in tractors and construction machinery. Its spools function as the core components of these valves, influencing the flow and restriction of hydraulic oil, and they account for a substantial share of the company’s shipments. The business operates in a manufacturing sector that serves high-precision, mission-critical components for heavy equipment, and its operations are supported by a medium-sized workforce focused on maintaining tight quality standards. A recent note from leadership highlights the company’s comparison of its spools to the processors in a computer, underscoring the critical role of these parts in valve performance.