150 years full of stories, innovations, and passion.
A pioneer of the industrial age founds RENK.
Our founder started RENK in a garage in Augsburg. Thanks to his passion and innovations the garage was not sufficient anymore and the first factory was needed.
Key turning point
The “Zahnräderfabrik Augsburg” joint-stock company for the production of gear wheels is founded.
RENK constructs a gear cutting machine with a processing diameter of seven meters.
500 precision automotive gear units each month.
The first reversing gear units for marine applications are built.
RENK builds the fastest gear box in the world.
RENK causes a paradigm shift in the transfer of power and energy for tanks to the principle of hydrostatic superimposition steering.
RENK produces the first turbine gear box with the highest pitch circle velocity (185 m/s).
RENK builds the first vehicle transmission dynamometers for tanks with automatic transmission.
RENK invents the hydrostatic-hydromechanical steering drive for tracked vehicles.
RENK designs the first integrated braking system with friction brakes.
Development of the RENK checker - an electronic device for monitoring gear boxes.
Even more dynamic
Acquisition of the slide bearing and coupling product areas of Eisenwerke Wülfel in Hanover.
RENK becomes the world's first company in the field of drive technology to harden and grind gear wheels measuring over 3,000 mm in diameter.
RENK manufactures one of the largest marine gear boxes for ice going ships with a diesel motor drive. Power: 40,000 kW.
Based on the company’s expertise in the development of electronic control devices for automatic transmissions, the RDDS (RENK dynamic data system) was created for controlling a drive shaft dynamometer, and is still used in the area of development in Formula 1 motorsports today. The RDDS has been continually enhanced since this time.
The product areas of industrial and marine gear boxes are spun off into RENK-TACKE GmbH.
The RENK AG
The company's name is changed to RENK Aktiengesellschaft – including the product areas of automatic vehicle transmission, drive elements, and test systems.
In a class of its own
RENK produces a turbo gear box with the highest power rating ever transmitted by gears in mesh: 75,000 kW.
RENK builds a planetary gear box for a marine propulsion system with counter-rotating propellers – with an unbelievable performance potential of 20,600kW.
First type of the world's most powerful gear box with a gas turbine output of 90 MW.
RENK-TACKE GmbH is fully incorporated into RENK AG.
The output of a turbo gear box increases to 100 MW gas turbine output for the first time.
Delivery of a bevel planetary gear unit weighing 110 metric tons, designed for an output of 5,400 kW. The gear unit is used in the world’s largest and most powerful roller mill at a cement works in Argentina.
RENK presents the newly developed etaX® gear box for a higher degree of efficiency.
The first CODAG system in the world for the main propulsion system of a frigate with a total output of 38 MW.
Above and beyond
The first RENK AEROGEAR gear box is installed in the AREVA 5-MW system at the Alpha Ventus Offshore Wind Farm in the North Sea.
First type of the high-capacity marine propulsion gears for COGAG arrangement with the lowest specific weight in the world and a total output of 6,300 kW.
Strategically important alliance in 2007.
The founding of RENK-MAAG GmbH in Winterthur, Switzerland, and thus the takeover of MAAG’s successful turbo series as well as the global service for the turbo and marine gear units.
Pinnacle of development.
Production of a multiple power splitting gear box with a multiflow for an output torque of 15 million Nm – which is approximately three times greater than any previous torques.
Highlight of 2011
The approval of the first system in the world built for the hybrid propulsion of a frigate, CODELAG, with an output of 30,000 kW.
Gateway to Asia
RENK opens a central base, RENK Shanghai Service and Commercial Ltd. Co., in 2012.
The world's largest planetary gear box for a wind power nacelle test rig is built in 2013 – with a torque of 15,000 kNm.
Three records in one year.
- COPE, the most powerful cement mill gear boxes thus far with an eight-motor drive and an output of 10 MW.
- The world’s largest spur gear box (290 metric tons) for the propulsion of the cutting head of a head suction dredger with a torque of 2.5 million nM…
- First AED electric drive module for extremely low-noise marine propulsion systems.
A superlative scale
The world's largest test stand for gear boxes up to this point is built in 2016.
Extending the mobility solution package.
RENK buys the Horstman Group, a leader in suspension system for military vehicles. With this move, RENK is strengthening the position of being a holistic mobility solution provider.
Stronger in the Americas
RENK acquires from L3Harris the Technologies Combat Propulsion Systems, an established mobility solution provider.
150 years - a success story continues.
In 1873, Johann Julius Renk founded our company in a garage in Augsburg. An incredible and successful journey of 150 years. Made possible by passionate, innovative and incredible employees, customers and partners. Something we will celebrate for sure and a reason to innovate our logo and branding.