SPX Corporation is a supplier of highly engineered infrastructure equipment and technologies. The company operates within four markets: heating, ventilation, and air conditioning, detection and measurement, power transmission and generation, and engineered solutions. Examples of SPX’s products include cooling towers and boilers, underground pipe and cable locators, power transformers, and heat exchangers. Brands include Waukesha, Dielectric, Fahrenheat, Radiodetection, and Pearpoint. SPX operates in 17 countries with a sales presence in 100 countries. In 2019, the company earned approximately $1.5 billion in annual revenue. Based in Charlotte, North Carolina, SPX employs over 6,000 employees. Eugene Joseph Lowe is the CEO.
SPX was founded on December 20, 1911 in Muskegon, Michigan, as the Piston Ring Company by Charles E. Johnson and Paul R. Beardsley. The company was entirely devoted to the production of piston rings of leading engine builders. In 1925, Piston Ring bought the No-Leak-O Piston Ring Company, allowing the company to increase production of engine components. After acquiring Accuralite Company in 1931, the company changed its name to "Sealed Power Corporation" and also started manufacturing piston rings, pistons and cylinder sleeves for various military applications.
Sealed Power Co.’s first plant opened outside Muskegon in 1946. In 1957, a Replacement Distribution Center was added in LaGrange, Indiana. The new distribution center serviced 33 smaller distribution outlets in major cities throughout the United States and Canada.