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Mahle GmbH

Mahle GmbH
Type GmbH
Industry Automotive
Founded 1920
Headquarters Stuttgart, Germany
Products Automotive parts
Employees 65,000 (2014)

Mahle GmbH is an automotive parts manufacturer based in Stuttgart, Germany. It is one of the 30 largest automotive suppliers worldwide.[1] As a manufacturer of components and systems for the combustion engine and its periphery, the company is one of the three largest systems suppliers worldwide for piston systems, cylinder components, valve train systems, air management systems, and liquid management systems.

Mahle in Stuttgart-Bad Cannstatt

As of 2014, its 65,000 employees work in 120+ production plants[2] and six research and development centers in Stuttgart, Northampton, Detroit, Tokyo, Shanghai and São Paulo.[3] Worldwide, 3000 development engineers and technicians work as partners for Mahle's customers on products and systems focused on the development of the combustion engine.


  • History 1
    • Formation 1.1
    • Aluminium engines 1.2
  • Product lines and profit center 2
  • See also 3
  • References 4
  • External links 5
    • Video clips 5.1



In 1920 the engineer and pilot Hellmuth Hirth established together with others a small workshop in Cannstatt, where he developed and constructed a two-stroke engine.

26-year-old Hermann Mahle started working for Hellmuth Hirth on December 1, 1920, as the company’s seventh employee. The workshop was then called "Versuchsbau Hellmuth Hirth". December 1, 1920 is acknowledged as the birthday of today’s Mahle Group. It soon became clear that the workshop would not survive by only conducting engine tests. So the need arose to build a profitable line of production in order to finance ongoing engine tests. At that time, in the automobile production, pistons were generally made of cast iron. Versuchsbau Hellmuth Hirth decided to attempt to build light-alloy pistons for combustion engines.

On November 1, 1922 Hermann Mahle's brother, Ernst Mahle, joined the factory as Head of Engineering. In 1924 the company was renamed Elektrometall GmbH.

In 1927, the company developed the first controlled-expansion piston in Germany and in 1931, the world’s first aluminum ring carrier piston for Diesel engines. Following this, piston technology was steadily improved.

In 1938 the conversion into Mahle KG took place and the new company logo was introduced. The company expanded. New products were developed and produced (e.g., aluminium cylinders with Cromal (chrome plating) surface coatings in 1951).

In 1964, the company founders Hermann and Ernst Mahle decided to waive private ownership in their companies and make the companies part of a foundation for public benefit. They renounced the largest part of their personal property and transferred the company shares to the Mahle Foundation.

Aluminium engines

In 1976 Mahle placed the first European aluminum engine blocks made in low-pressure die casting ready for series production. In 1988 the composite camshaft is enhanced to production standard, and in 2001 Mahle presented a cooling concept for pistons in high-speed passenger car Diesel engines. The first all-plastic oil filter in the world followed in 2003. Mahle developed and constructed its first complete engine in the same year, which was applied in the Formula Student.

Today, Mahle is a predominant system supplier for components of piston systems, cylinder components, valve train systems, air management systems, and liquid management systems, for all well-known automobile manufacturers. In 2010, the Mahle Group generated sales in excess of €5.2 billion. In 2011, the Mahle Group generated sales in excess of €6.0 billion.

Product lines and profit center

The product lines of Mahle in detail:

  • Piston systems: Aluminum pistons for gasoline and diesel engines, articulated and steel pistons for commercial vehicle engines, piston assemblies and complete power-cell- modules.
  • Cylinder components: Piston rings, piston pins, connecting rods, cylinder liners, bearings and bushings for combustion engines and other automotive applications, piston inserts.
  • Valve train systems: Machined and assembled cylinder heads and engine blocks as well as assembled complete engines, precision sintered parts and turbocharger parts. Complete valve train systems and their components.
  • Air management systems: Complete air intake systems, air filter elements, crankcase ventilation systems, cylinder head and engine covers, carbon air filters, actuators, blowby heating, EGR- modules and mechatronic components.
  • Liquid management systems: Oil filter modules, oil and fuel spin-on filters, fuel filter modules, fuel pressure regulators, inline fuel filters, carbon canister modules, heat exchangers for engines and transmissions, hydraulic oil filters, air driers.

The profit centers of Mahle in detail:

  • Aftermarket: Products for engine service and rebuilding from the complete Mahle product range.
  • Small engine components: Cylinder assemblies, cylinder heads, pistons, and filters for small engines of handheld power equipment, motorcycles, and power sports vehicles.
  • Large engine components: Pistons and engine components for gas, diesel, heavy-oil, and multi-fuel engines for marine applications and energy production.
  • Motorsports: Development and production of high-quality engine components for motorsports.
  • Industrial filtration: Fluid filtration, fluid separation, oil mist separation, process filtration, and dedusting in general, industries, ship maintenance, for large engines, in industrial vehicles, and process technology.[4]
  • Mahle Test Systems: Vehicle and component testing, pressure/vacuum based leak testing, vehicle end-of-line testing, web based reporting, data loggers, assembly plant testing equipment.[5]

See also


  1. ^ Automotive News 150 Suppliers 2007. May 12, 2008
  2. ^ "MAHLE Group. Data & facts". Retrieved 2013-08-22. 
  3. ^ "MAHLE Group. Research & Development". Retrieved 2013-08-22. 
  4. ^ "The official partner of the Mahle GmbH in Russia". Retrieved 2013-07-31. 
  5. ^ Mahle Test Systems' site

External links

  • Mahle Group
  • Mahle North America
  • Mahle Test Systems
  • Mahle Powertrain

Video clips

  • Mahle YouTube channel
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