ENGINEERING DESIGN SERVICES

Made in Germany since 2000

Precision begins with a good idea

Experience how engineering becomes the driving force behind your innovation.

Since 2000, 3defacto has been developing customized solutions for complex mechanical engineering projects. Whenever standard solutions are not enough, our work begins: we think further – from concept to production-ready implementation.

Our experienced design engineers combine technical know-how, creativity, and many years of project experience. They integrate seamlessly into existing teams and deliver practical, cost-effective solutions – from single components to specialized machinery.

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Engineering that fits. Technology that works.

We rely on certified SolidWorks professionals, structured methods, and proven processes. Our services range from concept development and project management to visualizations, simulations, and production-ready drawings – including CE documentation and compliance with international standards.

Engineering expertise with structure

Services, processes, and project assurance at a glance

What makes 3defacto Engineering stand out

  • Custom solutions instead of one-size-fits-all
  • Planning, development, and documentation from a single source
  • Flexibility in project scope and execution
  • Cross-industry experience
  • Integrated prototyping capabilities
  • Focus on economic and sustainable engineering
  • “Made in Germany” – with quality and accountability
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Our services at a glance

  • Full-service project support or selective involvement
  • Engineering and project management in-house or on-site
  • SolidWorks design including CE process workflow
  • 3D CAD modeling, FEM analysis, and assembly simulation
  • Prototyping and small-batch construction
  • Technical documentation including BOMs and manufacturing data
  • Compliance with all relevant directives and global standards

How we work with you

  • Concept design based on your specific requirements
  • Fixed-price proposals based on your specifications
  • Time-based billing or hourly packages
  • On-site support (staff leasing or contract-based)
  • Support with individual work packages (e.g. FEM, simulation, CE documentation)
  • Full project implementation including management
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Planning reliability included

  • Creation of requirement specifications and design comparisons
  • Cost estimation and flexible contract models
    (e.g. fixed-price, framework agreements, staff leasing)
  • Risk analyses and safety concepts available on request

Proven across industries

References from engineering, development, and production

Companies from a wide range of industries rely on the expertise and dependability of 3defacto – from initial concept to full-scale implementation. Our references show how tailored solutions perform in real-world production: efficient, sustainable, and aligned with customer needs.

Whether in the chemical, construction, or wheel assembly industries – or in mechanical or textile engineering – we develop solutions that integrate seamlessly into existing systems and deliver measurable value. For us, it’s not just about the technology, but about working closely with our clients – as partners.

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Chemical Industry

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Home Appliance Industry

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Custom Machine Engineering

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Building Materials Industry

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Custom Machine Engineering

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Wheel Industry

“With 3defacto, we found a partner who speaks our language – technically and personally.”

Project Manager, international mechanical engineering company

Let’s talk – we’d love to show you what’s possible for your project.

Software

Good. Better. Optimal.

At 3defacto, we see software as an essential part of modern engineering and production processes. Our solutions combine hands-on mechanical engineering expertise with digital intelligence — for measurable efficiency, tangible progress, and full customization.
From CAD, PDM, and process integration to automation, we develop software tailored to our clients’ workflows, systems, and structures. The result is not just working technology, but a powerful tool — from design to shop floor.
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3defacto NEXUS IoT Platform – Your System, Live and Connected

3defacto NEXUS is the intelligent IoT platform for connected production — controllable via smartphone. Whether management, maintenance, or purchasing – all departments access real-time machine data.

Key Features:

  • Live monitoring of production status, capacity, and OEE
  • Alerts via app and email in case of malfunctions or maintenance needs
  • Digital reports, log files, and camera access
  • Direct access to customer service and spare parts
  • Secure remote access via VPN (ISO-certified)

Prevent Downtime Before It Happens

NEXUS detects potential issues before they cause failures. Stay ahead of problems and avoid unplanned stops.

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After-Sales Service

Reliable – even after the project is complete

Even after your project has been delivered, we’re still here for you. Our After-Sales Service supports you with any technical or functional questions about your design or product. Whether you need adjustments, documentation support, or further development – our experts are ready to assist you reliably and efficiently.

Thanks to the long-standing experience of our teams, you benefit from direct points of contact and quick, qualified responses.

Julius Horstmann

Julius Horstmann

Head of Service & Aftersales

Get in touch

Want to get to know our engineering experts?

We offer new clients a detailed initial consultation – with a satisfaction guarantee.

Got a project in mind?

Let’s get started together and get in touch with our
contact persons.

Contact Person

Your direct line to us

Our contacts are happy to take time for your questions – personally, collaboratively, and on equal footing.
Robert Sauer

Robert Sauer

Head of Mechanical Engineering

Olaf Gieg

Olaf Gieg

Project Manager/ Authorised Officer

Peter Ahlmer

Peter Ahlmer

Chief Executive Officer

The ENGINEERING DESIGN SERVICES division is part of 3defacto.

Learn more about our group and its wide-ranging capabilities.

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