Welcome to CMMC GmbH – the innovator in the traditional casting industry. CMMC stands for Cast Metal Matrix Composites or general for cast composites.

Our answer to omnipresent demands for lightweight construction, energy savings, and resource efficiency is the development and application of novel composites which elegantly combine the properties of disparate materials. In this way, we do away with the limitations imposed by the use of monolithic materials.

CMMC GmbH, a successful Startup company from the University of Technology Chemnitz, develops MMC-structure materials of varying compositions, which is a promising solution to the current needs of industry. To start with, we are limiting ourselves to materials with the highest application potential – particle-reinforced aluminium alloys, abbreviated AMC. In this pursuit, we use an innovative manufacturing process which enables the continuous production of AMC materials on an industrially relevant scale, enabling the saving of energy not only in the material manufacturing process but also in their final application. We are turning AMCs from a niche product into a material with myriad applications.


Commercial Vehicle Industry

Automobile Industry

Mechanical Engineering Industry

Research and Consulting

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We are back: Hannover Messe 2023

Visit us at HANNOVER MESSE 2023.

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The Grow Award

We are very pleased to receive the award "Most Innovative Startup" from THE GROW network.

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Commissioning of our continuous casting plant

In mid-October 2022, we launched our continuous casting plant from Indutherm and carried out initial tests.

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At the HIGHTECH VENTURE DAYS, the HTSB (= Hightech Startbahn) from Dresden has been bringing European start-ups together with international VCs and corporates every year since 2013. The focus is on B2B and patent-based technologies.

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Technology Roundtable of the IHK Chemnitz at CMMC GmbH

Today, after two cancellations due to corona, the Technology roundtable of the IHK Chemnitz in cooperation with the start-up network SAXEED finally took place at our location in the RAW Chemnitz.

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Funds from the SAB's technology transfer funding programme granted

As part of its technology transfer funding, the Free State of Saxony will continue to support start-ups and established companies via the Sächsische Aufbaubank in Dresden in 2022:

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Participation in the annual ACOD industry congress in Leipzig

Under the title "Orientation in Chaos", the annual ACOD industry congress was held together with the Mitteldeutsches Logistikforum at the Porsche plant in Leipzig on 1 September 2022.

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Participation in the Innovation Conference of Saxony

On 23 June 2022, around 650 registered guests celebrated together at the 10th Saxon Innovation Conference at Messe Dresden.

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Review of the Hannover Messe

From May 30 to June 2, 2022, 2500 companies from around 60 countries presented their latest products at this year's Hannover Messe.

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Visit us at the Hannover Messe 2022

From 2022-05-30 to 2022-06-01, we will be exhibiting at the Hannover Messe in StartUp Hall 3 at the joint stand by futureSAX.

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Casting trials successfully carried out with pilot customers

FILL GmbH more than satisfied with casting trials: On 8 and 9 November, we travelled to Austria to visit one of our first customers in order to carry out casting trials with AMC material together.

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Receiving the Prize of the TUClab Competition 2020

Accompanying the first place finish in the TUClab Competition on 02.10.2020 was a prize of financing through the SBG (Sächsische Beteiligungsgesllschaft mbH, a Saxon investment firm).

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Founding of CMMC GmbH

On 12.02.2021, we finally reached a special milestone:

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The Process

Melt Extraction in a Low-Pressure Casting Process

The melting of the metal matrix occurs in a vacuum-capable, electrically heated resistance furnace with a maximum temperature on 950 ℃, which enables the production of aluminium melt. The produced metal melt is subsequently transferred into the processing chamber through the generation of a pressure difference. 

Particle Injection

In order for an MMC melt to develop out of the metal melt, heated particles are added in defined amounts to the metal melt during the vacuum casting process. In contrast to other injection procedures, the available surface of the melt is minimised so that the particle content is maximised.

Mixing Process

To ensure a homogeneous and qualitatively high-value MMC melt, the injected particles must be wetted by a metal matrix and the gas pockets removed. The quality of the MMC melt is facilitated by the predominant vacuum conditions.


Through the application of large, partially automatised casting chambers, different casting moulds (primarily permanent moulds) can be generated in a continuous fashion for the production of bars, ingots, and semi-finished products for further processing.



Materials for the casting industry for remelting and casting.


Semi-finished products for forming technology and mechanical finishing.


Apply our process in your finishing line.


Creation of customised solutions and consulting on material-specific questions.


We, Dr. Eng. Marcel Graf, Robert Pippig, Regina Hessenmüller-Lampke, Jens Winter and Dr. Eng. Thomas Grund, have set out to turn metal matrix composites (MMC) from a niche product into a widely applicable one. We are united in our drive to successfully transfer cutting-edge research results and innovations from the laboratory/science to industry.

Marcel Graf, who studied as a casting mechanical engineer (TU Bergakademie Freiberg), leads our company as the CEO. The technical side is managed by Robert Pippig, our experienced specialist in the field of AMC materials. Regina Hessenmüller-Lampke, our financial wizard, brings decades of experience in the banking industry into the fold. Our production benefits from the immense experience of our foundry mechanic Jens Winter. The fifth of our number, Thomas Grund, keeps us in close contact with the latest in university research.