Large-bore Pistons

The large-bore pistons division of KS Kolbenschmidt GmbH is one of the world’s major producers and offers optimal solutions for pistons in the diameter range from 150 to 640 mm made of steel and aluminum, for all applications. At the two production sites of Neckarsulm (Germany) and Marinette (US State of Wisconsin), large-diameter pistons are developed and produced for virtually all renowned manufacturers of large four-stroke engines worldwide.

The portfolio extends from monobloc aluminum pistons, spheroidal graphite monobloc and composite pistons with bottom parts made of aluminum, spheroidal graphite iron and steel through to new developments in the area of articulated and steel pistons.

Large bore pistons, due to the high cost of actual testing in an engine, demand and place special priority to the design concept. Modern analytical methods and systems are employed, e.g. CAD (2D and 3D), 3D finite element analysis and high-speed photography in shaker test investigations.

Machining of pistons at Kolbenschmidt is done using state-of-the-art NC and CNC equipment. This ensures a maximum of machining accuracy, production reliability, reproducibility and economic efficiency.

The high quality standards maintained by Kolbenschmidt’s large bore pistons is ensured by in-production quality systems and final inspections employing sophisticated inspection equipment as the 3-coordinate measurement units, isotope-, X-ray-equipment, ultrasonic testing equipment for non-destructive testing.

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Kolbenschmidt®

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