Robert Radunz plans to retire March 31, closing out four decades with Hopkins, Minn.-based Thermotech and 22 years at the operational helm of the custom injection molder.
Parent firm Menasha Corp. of Neenah, Wis., appointed John Bonham to succeed Radunz as vice president and general manager of the Thermotech division, effective Jan. 1. Radunz will continue in a consulting position until his retirement.
``I turned 60 last year, and I think 40 years is enough,'' Radunz said in a telephone interview.
He joined Thermotech, then a publicly traded company, as administrative assistant to the president in 1958 and has held a variety of positions.
ITT Corp. acquired Thermotech in 1970 and appointed Radunz division president in 1976.
ITT divested Thermotech with a group of companies that became FL Industries in 1985, and, subsequently, FL Industries sold Thermotech to Menasha in 1988.
Through the years, Thermotech expanded, opening a plant in St. Petersburg, Fla., in 1961; acquiring a facility in Monson, Mass., in 1978; and starting a new operation in El Paso, Texas, in 1995. The Florida and Texas plants process thermosets as well as thermoplastics.
Thermotech placed 71st in Plastics News' most recent ranking of North America's largest injection molders, with 1996 sales of $68.2 million.
Bonham takes charge of a business that employs 700 and operates about 200 molding machines with clamping forces of 50-550 tons.
Thermotech makes high-technology parts for customers in the automotive, medical, electrical and electronics industries.
Bonham has been vice president and general manager of Menasha's molded products division in Watertown, Wis., and, earlier, was division vice president and general manager of the firm's Otsego paper mill in Otsego, Mich. He joined Menasha Corp. in 1982.