Specifications for Older Campbell Hausfeld Air Compressors

Specifications for Older Campbell Hausfeld Air Compressors. Campbell Hausfeld established itself in the mid-1800s by manufacturing horse-drawn wagons and farm equipment. Already a successful company, Campbell Hausfeld entered the air compression and tools market in 1940 with the Pressure King Air Compressor, soon renamed the Pressure Queen. The corporation marketed the new product to both professional and residential markets as an affordable, versatile tool that would last a lifetime.

The Campbell Hausfeld company introduced its famous air compressors in 1940.


Early Campbell Hausfeld Pressure Queen compressors had a four-cylinder engine. The units required a ½ to 1/3 horsepower motor or gas engine for power. The company touted its products as having the only four-cylinder engine on the market. In the 1950s, the ads changed to stating the Pressure Queen as the only portable compressor containing a four-cylinder engine.


The Pressure Queen boasted a maximum pressure of 50-60 psi (pounds per square inch). The compressor excelled in commercial, farm and home workshops nationwide. The hybrid ability to paint, inflate tires and finish products made it an essential tool for contractors and homeowners.


The non-pulsating performance of Campbell Hausfeld compressors set it above the competition. The consistent flow of air pressure provided professional grade finishes for painting.


The piston type compressors came equipped with bronze bearings. Campbell Hausfeld manufactured the disc-type valves, forged crankshaft and base from steel.


The Pressure Queen's price tag stood at $99.95, advertised as an incredible bargain for the amount of flexibility and durability offered. A purchaser can add an electric- or gas-powered motor for an extra $10.

Other Models

Campbell Hausfeld produced four models by the 1950s. The Pressure Princess, sister to the pressure queen, provided similar effectiveness through a one-cylinder engine.


  • Campbell Hausfeld Official Site: Company History
  • "Popular Mechanics": 1947 Pressure Queen Ad
  • "Popular Science": 1950 Pressure Princess Ad
  • "Popular Science": 1951 Campbell Hausfeld Ad