Gegründet 1901 von Carl Keller. Seit 2019 sind wir Teil der Kumera Power Transmission Group.
Quadruple strong for better gearboxes.
Individual solutions at reasonable prices
Certified to DIN EN ISO 9001:2015
We “invented” our first bike more than 100 years ago
Cross-divisional and fast-working project teams
Foundation of the KELLER locksmith’s shop in Troisdorf
KELLER starts with gear production.
The product range is supplemented by gearboxes for the steel industry and opencast mining
Founder Carl Keller dies. The company is taken over by his sons Dr. Carl Keller and Wilhelm Keller.
Karl F. Keller takes over the management of the company. KELLER products are now delivered worldwide.
KELLER is moving its headquarters from the Troisdorf city centre to today’s production site.
The product portfolio is constantly being expanded and now also includes gearboxes for the food, in addition, the development of cement, the chemical and the aluminium industry. propulsion solutions for the marine industry.
Dr. Dirk Keller takes over the management. The development and production of gearboxes for wet dredging is underway.
Investments of approximately EUR 30 million in a comprehensive modernisation of the machinery will be made. The largest tooth flank grinding machine in Germany is currently put into operation.
Beginning of generational and structural change.
Delivery of the heaviest cutting head gearbox of 300 tons to date in wet dredging and the heaviest comb-rolling gearbox of 190 to weight ever supplied by Keller.
C.u.W. Keller GmbH & Co. KG was acquired by Kumera Corporation in September 2019 and the business activities will continue under the name Kumera Getriebe GmbH.