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As one of Europe’s leading manufacturers of both functional and decorative metal die-cast components, we understand that companies face increasingly strict demands for product quality and cost-efficiency. That’s where the HDO team brings its full expertise and decades of experience into play.
For nearly 70 years, we have combined technical excellence with exceptional innovation. At our headquarters in Germany – and two additional international sites – we offer an unmatched level of vertical integration. From concept and development to die casting and post-processing, you benefit from comprehensive in-house expertise.
From prototype to series production: At HDO, we do more than cast and coat. We think through every step with your individual requirements in mind – delivering high-end die-cast components from a single source that set new standards in every way.
We shape your product ideas into almost any form imaginable. Discover our wide range of services and technologies – designed to support your business.
We use state-of-the-art cold and hot chamber machines with clamping forces up to several hundred tons. Whether small or large components, our technologies enable cost-efficient, repeatable, and highly precise die-cast parts made of zinc and aluminium with extremely tight tolerances.
All parts can be prepared in-house for further finishing, including polishing and grinding, ensuring optimal quality for subsequent surface treatments.
Zinc die casting is ideal for precise, geometrically complex, and decorative components. With outstanding dimensional accuracy, strength, and coating compatibility, zinc is perfect for visible parts and high-volume functional components. But even at lower production volumes, zinc die casting remains economical and sustainable.
Zinc is a naturally occurring raw material that can be recycled indefinitely without quality loss. It is also easy to separate during waste processing – an ecological benefit we maximise through the consistent use of recycled zinc alloys in our foundries.
Zinc’s relatively low melting point reduces energy consumption during casting. Combined with short cycle times for alloys like Zamak, this makes the process highly efficient.
Another advantage is zinc’s excellent fluidity when molten, combined with high strength after solidification – ideal for intricate, thin-walled, and elegant parts.
Zinc alloys are also easy to finish, whether through electroplating or other coatings. In short: zinc die casting is cost-efficient, visually appealing, and highly versatile – perfect for reproducible series production.
Aluminium die-cast components offer a lightweight solution with high tensile strength and excellent thermal conductivity. This process is especially suited for structural parts, technical housings, or components that require heat resistance and minimal weight.
Thanks to its corrosion resistance, aluminium die casting is widely used in the automotive, construction, and electronics industries. Its thermal properties make it ideal for heat-sensitive components such as LED housings or heat sinks.
Aluminium’s electrical conductivity also makes it suitable for electrical applications. Environmentally, aluminium is nearly 100% recyclable and generates less waste compared to traditional CNC machining – making it a sustainable choice.
Aluminium parts can be anodised, painted, or even electroplated – providing a wide range of high-performance coating options.
Our in-house electroplating facility is one of the largest in Europe. Through electroplated coating, your components gain not only a high-end decorative surface, but also long-lasting protection against corrosion, abrasion, and dirt.
The processes are fully automated and environmentally conscious, with strict controls to meet sustainability and quality standards. The result: durable, visually stunning components for both decorative and technical use.
We offer this expertise as part of complete projects – or as contract plating services.
Using CNC machining centres and robotic systems, we ensure precision fit and a flawless appearance. Punching, milling, drilling, turning, and thread tapping – whatever your part needs, we deliver it with technical perfection.
Beyond electroplating, HDO offers a wide range of modern surface treatments:
We assemble complete modules and integrate materials such as glass or wood. Every step is carefully controlled and optimised as needed. With HDO, quality doesn’t stop at the casting process – it includes how well your part integrates into the final product.
Innovation starts here. Our team specialises in design optimisation for die-cast parts. Many components once deemed “impossible” by conventional foundries have been successfully realised by HDO – from highly complex geometries to demanding surface specifications.
With our development support, we ensure optimised processes and smooth series production.
Let’s talk about your project – and how we can contribute to its success!
Our manufacturing technologies serve a wide variety of applications. We produce high-precision aluminium and zinc die-cast parts tailored to customer requirements across multiple industries.
Numerous renowned companies trust HDO as a long-term partner. Join them and benefit from complete, in-house expertise!
We are the preferred service provider for international OEMs and suppliers – from concept and production to post-processing, coating, and module assembly. We also support individual projects in our core competencies: die casting and electroplating.
We produce sophisticated parts for premium vehicles such as interior door handles, decorative elements, switch housings, consoles, and modular locking systems – all with flawless precision and perfectly coated surfaces.
An ideal use case for zinc die casting: elegant handles and levers, housings and frames for shower systems, or stylish flush plate elements. Our finishing delivers brilliant, corrosion-resistant surfaces – perfect for this design-driven and demanding environment.
We supply custom parts such as oven knobs, hinges for refrigerator shelf systems, coffee machine covers, and washing machine door rings – all designed with technical precision and premium tactile quality.
We manufacture precision housings, covers, and connectors for access systems, industrial cameras, and control units – merging function and design into a single solution.
Our die-cast housings and EMI shielding components are used in sensitive electronics – ideal for networking, sensors, and communication technology.
From instrument covers to robust housings, our metal parts are engineered for demanding conditions – with high dimensional accuracy and durable surfaces for large components exposed to mechanical and environmental stress.
We manufacture handles, housings, and profiles for medical equipment, including patient monitoring systems and veterinary tools. Zinc die casting offers dimensional stability, fine detailing, and hygienic, easy-to-clean surfaces – ideal for medical applications. Our cross-industry experience ensures top process reliability in this field as well.
t HDO, we combine unmatched zinc die casting expertise with a full spectrum of services for manufacturing and finishing high-end components. Technically advanced, visually stunning, and uncompromising in quality – we develop custom solutions that fit your exact needs.
From idea to series production, we are with you every step of the way – driven by a relentless commitment to quality.
Looking for a true partner, not just a contract manufacturer? Talk to us – we look forward to your challenge!
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