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STAMFORD | AvK (Cummins Generator Technologies) has been manufacturing alternators under the renowned STAMFORD® and AvK® brands since 1904, setting the industry standard in the 7.5 - 11,200 kVA range.

With six manufacturing plants, based in Europe, Asia and India, manufacture of alternators is to one global standard, so each delivers to the same exacting quality that has come to distinguish our alternators in the industry.

STAMFORD | AvK is the market name for Cummins Generator Technologies, part of Cummins Inc.., a global power leader and Fortune 500 corporation that designs, manufactures and distributes engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems.


1904 - The Cutting Brothers establish an electrical engineering business in Stamford, UK.
1919 - Foundation of AvK as trading enterprise for electrical machines in Frankfurt.
1938 - AvK announces world’s first self-regulated alternator.
1950 - Ventures started in USA and Canada.
1966 - Introduction of C range, first volume produced brushless alternator.
1973 - Produced world’s first alternator to utilise a PMG for AVR excitation.
1980 - Lord Lieutenant of the county of Lincolnshire and the Mayor of Stamford presented ‘The Queen’s Award for Export Achievement’.
1985 - HC range of alternators introduced.
1986 - Cummins acquires ONAN and picks up NEWAGE in the transition.
1988 - Introduction of UC range of alternators.
1990 - Development of AvK DIG range.
1991 - Manufacturing starts in India.
1992 - Development of AvK DSG range.
1997 - Manufacturing starts in China.
2001 - ISO 3834_2 Certification Welding Process Certification.
2001 - Merger of AVK-SEG and NEWAGE.
2002 - ISO 9001 Certification.
2006 - Cummins rebrands all subsidiaries, forming Cummins Generator Technologies in the process.
2007 - Record production year - 190,000 units made worldwide.
2008 - Cummins Generator Technologies India opens new facility in Ranjangaon, India. The facility incorporates an impressive list of sustainable features that minimize its impact on the environment and is Cummins first truly "green" facility.
2009 - Launch of P0, P1 range. The new small range of alternators by STAMFORD®, offering self-excited base machines and optional Excitation Boost System (patent applied for).
2010 - Opening of a 2nd China Manufacturing Plant.
2011 - Launch of anti-counterfeit programme.
2011 - Global Headquarters relocates to Peterborough.
2012 - Cummins Innovation Centre opens at the University of Nottingham.
2013 - Grid Code Compatible STAMFORD® and AvK® product range launched.
2013 - €12 million investment in capacity expansion at manufacturing plant in Craiova, Romania.
2015 - New STAMFORD® P80 manufacturing facility opened in United Kingdom.
2016 - Launch of STAMFORD® S range 1st machines built with CoreCooling™ technology.
2016 - Launch of STAMFORD® S0/S1 range.
2017 - Launch of STAMFORD® S6 range.
2018 - Alternator Technology Centre opened in Stamford, United Kingdom.
2019 - Launch of STAMFORD® S7 and S9 range.
2020 - NEWAGE® regenerated to serve today's market needs.
2021 - Launch of STAMFORD® S7 Water-Cooled