AIR Logic

Who we are

The Air Logic Division of Knapp Manufacturing, Inc. (formerly Fred Knapp Engraving Co.) designs and manufactures a comprehensive line of pneumatic and vacuum control equipment. Air Logic has earned a reputation for product innovation and development by designing special products to meet customer requirements. Knapp Manufacturing, Inc. was founded by Fred Knapp (See related story below) in January 1945 in the basement of his home. This home-based shop specialized in all types of steel marking stamps, engraved signs and dials.

Fred Knapp's many years of experience and craftsmanship earned Knapp Manufacturing, Inc. a strong reputation of excellence in quality. Today, family-owned and operated, Knapp Manufacturing, Inc.'s reputation continues to grow. Since the main structure was completed in 1955, seven additions have been made to meet the expanding needs and diversified growth.

The company has since moved on from machine engraving and is now recognized as a precision plastic injection molding & tool and die, maker. Knapp Manufacturing, Inc. has been innovative in many different areas of plastic injection molding with a complete custom tool room and plastic injection molding facilities. We have produced thousands of different kinds of precision plastic parts which range from components for aircraft instruments to spray tips for aerosol cans. In 1975, Knapp Manufacturing, Inc. purchased the Fluidic Division of Johnson Controls, which is now known as Air Logic. This innovative company is on the leading edge of quality and excellence in customer service with the immediate delivery of products and providing customers with the most flexible and productive systems on the market.

Our values


We preserve dignity in one another by committing to providing everyone with a sense of purpose and value.


We respect, involve and encourage our people to reach their full potentials here. Treating all our employees with the self-respect and integrity earned.


We believe that trust is a characteristic that constructs and upholds respect and loyalty for all our workers.