Since 1947, Rotron has provided the military and aerospace industries with highly reliable fans and blowers. With its extensive product development experience, Rotron has demonstrated an ability to design, develop, qualify and support cost-effective, reliable products on a wide range of aircraft and defense platforms worldwide. Its products are designed to meet specific environmental specifications, including shock and vibration, humidity, salt spray, temperature extremes, EMI, and water resistance. In many instances, it has not only met, but exceeded those specifications.

 1946 Founded by J. Constant van Rijn
 1949  Incorporated as Rotron Manufacturing Company
 1955 Began high-temperature life tests on cooling fans
 1958 Patented inverted inside-out motor design for air movers
 1958 Developed industry-standard muffin fan for electronics cooling
 1961 Created/released MIL-B-23071 standard for AC fans for US military
 1976 Acquired by EG&G, and became known as EG&G Rotron
 1981  Introduced large vaneaxial fans to the aircraft industry
 1983 Introduced electronically commutated brushless DC (ECDC) fan
 1983 Acquired Frank Hill Associates (FHA), now AMETEK Rotron El Cajon
 1990 Re-organized Custom Division into Mil/Aero and Hi-Rel segments
 1990 Introduced continuous improvement and JIT initiatives
 1998 Purchased by AMETEK, becoming AMETEK Rotron
 1998 Moved Hi-Rel segment to Kent, OH
 1999 Received ISO 9001 registration
 2002 Launched Magnum 170 ECDC fan introduced to Telcom market with UL/TUV approvals
 2002 Acquired Air Technologies in United Kingdom
 2004 ISO 9001:2000 and AS9100:2004 approved.
 2017 Rotron celebrates 70th year of operations.