Maximum surface pressures, clean charge exchanges, low emissions

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Stuttgart, Germany, September 2007—Composite camshafts of MAHLE enable maximum surface pressure through forged steel lobes. Composite camshafts provide advantages for an optimized charge exchange in internal combustion engines and enable consequently lower emissions and improve fuel consumption.

The automotive supplier MAHLE, headquartered in Stuttgart, Germany, produces high-precision composite steel camshafts that can withstand maximum surface pressures up to 2,000 MPa. This corresponds to a pressure of two tons per square millimeter!

This strength is achieved by high-purity 100Cr6 steel as well as the process in which MAHLE joins the forged cams. MAHLE relies on an elastic joining method that is characterized by its high precision and the absence of changes in the assembled components during long-term applications.

In the future, valve train designs that enable optimized charge exchange will be increasingly in demand in order to achieve the development goals, such as higher power output per liter and lower pollution emissions. Thus, valves are actuated more quickly and higher contact pressures are generated, MAHLE offers composite steel camshafts with innovative design features.

MAHLE’s camshaft product portfolio includes cast and forged raw camshafts, fully machined cast camshafts, and composite camshafts, as well as fully machined steel camshafts for high-performance diesel engines.



The MAHLE Group is one of the 30 largest automotive suppliers worldwide. As the leading manufacturer of components and systems for the internal combustion engine and its peripherals, MAHLE is among the top 3 systems suppliers for piston systems, cylinder components, valve train systems, air management systems, and liquid management systems. With more than 40,000 employees in 110 production plants and seven research and development centers, MAHLE generated sales in excess of EUR 4.3 billion (USD 5.8 billion) in 2006.