Kobelt's initial product line started in the early 1960's with mechanical and pneumatic controls for marine vessels, including actuators, control heads, air cylinders and various other parts and components. The 900 series actuator was an early success, with some units still being used 30 to 40 years later. From its inception, Kobelt has used bronze extensively throughout all parts and components to ensure product longevity. By 1967, Kobelt had just under 100 products, and could supply complete systems for propulsion control in both mechanical and pneumatic environments.

In the 1970's, Kobelt became a pioneer in developing and manufacturing push-pull controls, to replace the cumbersome and complicated wire over pulley control systems in marine vessels. With dozens of control heads, variable handles and multiple functions per head, these controls quickly became a standard in the industry. Kobelt also expanded its pneumatic line by introducing heavy duty shaft brakes to the marine industry and, later, made a bold entry into the oil and gas sector by being the first to introduce air cooled disc brakes for draw-works applications.