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Railway technology

Aluminium Casting for Sustainable and Reliable Mobility

In the rail industry, reliability, durability, and resistance under extreme conditions are essential. Aluminium casting offers the ideal solution. The Grohmann Group develops and manufactures high-quality aluminium cast components precisely tailored for use in rail vehicles – engineered for strength, precision, and the most demanding requirements.

Our Process

Casting technology consulting

Tooling: Pattern and gravity die construction

Processes

Mechanical machining

Surface Treatment

Assembly

Casting technology consulting

We assess the feasibility of your components and develop tailored solutions. With our proficiency in sand casting, gravity die casting, and mechanical processing, we bring your vision to life with precision and high quality.

  • Casting Process Simulation
    Precision starts with planning. Our simulations ensure optimal results and minimize development risks.
  • Aluminum Alloys
    Customized to your requirements: From heat-resistant special alloys for traffic tunnels to corrosion-resistant AlMg alloys for seawater applications, and high-strength AlCuTi alloys for safety-critical components—we offer the right solution for every application.
Tooling: Pattern and gravity die construction

From concept to reality: We produce precise models for sand casting and high-quality steel molds for gravity die casting. These customized foundations perfectly implement your requirements.

Processes
  • Prototype Production
    Fast, flexible, and precise: We bring your ideas to life and develop prototypes that meet your specifications.
  • Sand Casting and Gravity Die Casting
    Our versatility and precision provide the ideal solution for every requirement—whether single parts or series, small or large.
  • Castforging
    For the highest demands on precision, strength, and surface quality: Squeeze casting combines the advantages of casting and forging, delivering exceptional results.
Mechanical machining

Using state-of-the-art 4- and 5-axis CNC machining centers, we produce ready-to-install aluminum cast components, perfectly aligned with the foundry process.

Surface Treatment

Customized finishing and protection: In collaboration with our partners, we offer a wide range of surface treatments—from powder coating and wet painting to anodizing.

Assembly

Ready-to-install components—precisely tailored to your requirements and prepared for immediate use.

From idea to installation

Everything from a Single Source

We provide not just components but complete solutions. From the initial concept through development to assembly-ready components, we support you at every stage of your project. Our comprehensive services guarantee quality and efficiency from a single source:

  • Casting Consultation
    We assist you with our expertise right from the development phase. Together, we develop economical and technical casting solutions perfectly tailored to your requirements.
  • High-End Manufacturing
    With cutting-edge technologies and decades of experience, we realize your components with the highest precision – from prototypes to series production.
  • Assembly
    Ready-to-install components – precisely tailored to your requirements and prepared for immediate use.

Why Grohmann is Your Ideal Partner

The Grohmann Group is more than a supplier of aluminum cast components—we are your strategic partner for innovative and customized solutions in drive technology. Our combination of advanced technologies, decades of experience, and comprehensive service guarantees you the highest quality, precision, and efficiency.

Comprehensive Support:

We guide you through every step of the project – from the initial idea through development to production and assembly. Our goal is not just to deliver components but complete solutions perfectly tailored to your requirements.

Extensive Expertise:

With proficiency in sand casting, gravity die casting, and castforging, we offer the right technology for every application. Our longstanding experience in drive technology makes us a reliable partner for complex and demanding projects.

Customized Solutions:

We don’t think in terms of standards but develop individual solutions precisely tailored to your needs. From prototypes to series production—our flexibility enables us to not only meet but exceed your expectations.

Everything from a Single Source:

With our broad range of services – from casting consultation through manufacturing to surface finishing and assembly – we reduce interfaces and ensure smooth project execution.

Technological Excellence:

State-of-the-art technologies such as casting process simulations and 4- and 5-axis CNC machining ensure the highest precision and efficiency. Through the use of customized aluminum alloys, we offer solutions that combine durability, corrosion resistance, and optimal functionality.

Sustainable Solutions:

Our aluminum cast components contribute to weight and energy consumption reduction, promoting environmentally friendly mobility and industry.

Your added value

Everything from a single source

The Grohmann Group stands for a consistent and seamless range of services. From the initial idea through development to series production and assembly – we keep an eye on the entire process. Our central coordination, combined with the specialised expertise of our locations, guarantees you maximum efficiency, quality and reliability.

With our comprehensive portfolio and our passion for aluminium casting solutions, we offer you more than just products – we create convincing partnerships.

Grohmann Group – aluminium casting in perfection, from a single source.

Agility,
on Rails

Every application in the rail sector comes with its own specific requirements – from single components to series production. Whether it’s highly complex geometries, special material properties, or functional integration: we supply aluminium cast parts precisely tailored to the technical challenges and operating conditions of rail vehicle manufacturing. Our flexibility in both production and service makes us a reliable partner.

Get in Touch Now
  • Grohmann ALUWORKS
    Heidelbergstr. 54
    72406 Bisingen
  • +49 (0)7476 / 9413-0
  • info@grohmann-aluworks.de

Technology that Drives Movement

Our Products. Your Success.

To ensure maximum strength and durability in rail applications, the Grohmann Group relies on advanced heat treatments, controlled solidification, and aluminium-titanium alloys. High thermal conductivity and corrosion-resistant alloys guarantee reliability – even under extreme conditions.:

  • Technical Perfection:
    To ensure maximum strength and durability in rail applications, the Grohmann Group relies on advanced heat treatments, controlled solidification, and aluminium-titanium alloys. High thermal conductivity and corrosion-resistant alloys guarantee reliability – even under extreme conditions.
  • Tested Quality – Documented Safety:
    X-ray, CT scans, crack testing, chemical analysis, and mechanical property verification: we deliver documented safety for every single part.
  • Long-Term Supply:
    Our dedicated departments ensure spare parts production for 35 years and beyond.     
  • Reverse Engineering:
    For replacement parts without existing drawings or 3D data. 
Grohmann – Together to Success

Driven by our passion for innovation, extensive expertise, and outstanding flexibility, we develop solutions precisely tailored to your projects. We believe in long-term partnerships built on trust, reliability, and uncompromising quality.

Grohmann Group – Shaping the Future of Rail Technology – Together

Rail transport is a cornerstone of sustainable mobility.
With our aluminium cast components, we make an active contribution to greater energy efficiency, reliability, and safety on the tracks.