Filterwerk Mann & Hummel GmbH


The Mann+Hummel Group is headquartered in Ludwigsburg within the metropolitan area of Stuttgart and is one of the three world leaders in development, production and distribution of liquid and air filter systems, intake systems and cabin filters. Additional products include cylinder head covers made of plastic with many integrated functions for the automotive industry, and filter elements for the maintenance and repair of motor vehicles. For general engineering, process engineering and industrial manufacturing sectors the product range includes industrial filters, membrane filters and equipment for water filtration. About 90 percent of annual sales of around 2.68 billion euros accounted for by the activity in the automobile industry. The company and its subsidiaries have more than 60 locations worldwide. The group is owned by the families of the two founders.

The Division Automotive OE develops, produces, and markets M+H filter and air intake systems and other components for the automotive industry. The motor spares trade is supplied with filter elements under the Mann-Filter brand name in the same quality as that supplied to OEMs. For general engineering, process engineering and industrial manufacturing sectors the product range includes industrial filters, a series of products to reduce carbon emission levels in diesel engines, filter systems and complete lines as well as units for conveying, dosing and drying of free flowing plastics.

The automotive industry is working increasingly hard to combine mobility with environmental protection and economy. Automotive component suppliers play an important role, as around 70% of a vehicle is produced in their (external) plants (as opposed the main car assembly plant).

For M+H, environmental protection is a strategic business objective, firmly established in corporate guidelines and ranking equally with economic objectives such as growth, profitability and market presence. A common environmental standard has been applied throughout the Group since the beginning of 2006. Environmental Officers and environmental management systems support and document implementation of the Group-wide standard. In 1998, Sonneberg (in Thuringia, Germany) was the first site to introduce an environmental management system. At the end of 2013, 25 plants worldwide already achieved certification to ISO 14001. Further plants will follow.

In addition to environmentally friendly production, attention has been increasingly focussed on the environmental compatibility of the products themselves. The environmental impact can be substantially reduced by using so-called Recompounded Plastic Materials. M+H has, for example, developed and started serial production of a cylinder head cover made from such material – in this case, consisting of waste and over-production polyamide fibres from the carpet manufacturing industry.

The predominant material in the engine compartment has until now been metal, but this is being replaced more by specialised plastics. The vehicle is therefore lighter in weight. Lighter weight means lower fuel consumption and thus also reduced emissions levels. As well as its advantages with regard to weight, plastic also offers new opportunities for component design and thus a higher degree of functional integration is possible. This generally reduces material consumption. One example is the prototype of a plastic oil pan for passenger cars which was exhibited at 62nd International Motorshow (IAA) Cars 2007. Weight savings of around 30% are achieved, compared with hybrid subassemblies made of aluminium and plastic, and this figure rises to approximately 60% when compared with pure aluminium parts. Environmental statements, reports and certificates can be viewed on the Corporate website

M+H employs approximately 1.000 people in R&D. It has filed more than 3,000 patents or patent applications. In addition to purely technical criteria, social trends as well as ecological and economic parameters are taken into account. M+H regularly assigns external partners such as, for example, the Max-Planck and Fraunhofer Institutes, to carry out studies to evaluate these factors.

In the field of bio-fuels too, the company is constantly seeking new solutions: the M+H experts are, for example, investigating their long-term behaviour in special testing laboratories, in order to adapt and improve filter media and component materials, as bio-fuels are introduced worldwide.