Us in Detail

We face the challenges of tomorrow today. We offer our customers worldwide state-of-the-art automation solutions with the latest generation of robot technologies.

With a hundred-year tradition and continuously growing and very successfully active in the development and manufacturing of customer-specific precision parts, assemblies, and special machines for over 30 years.

Special-Purpose Machine Construction

From development through to commissioning and service, we develop state-of-the-art automation solutions with the latest generation of robot technologies for customers worldwide in special-purpose machine construction.

Our Competencies in Contract Manufacturing

We produce high-quality and demanding precision turned and milled parts on state-of-the-art computer-controlled machines, suitable for a wide range

of industrial applications. We also offer the assembly of complete units on behalf of our customers.

CNC Machining

CNC machining is a highly precise manufacturing process that utilises computer-aided control.

Large-scale Production

Special-purpose machine construction is the key to developing tailored solutions for specific production requirements.

Small-batch Production

This technology is ideal for the production of complex parts in small quantities.

Assembly

Assembly is a decisive step in manufacturing, in which various components are assembled into a functioning product.

A Selection of our Projects

Automation, Robotics and Special Engineering in Detail

These custom-built machines help to increase efficiency and competitiveness.

Assembly requires precise planning and execution to ensure all parts fit together perfectly.

CNC machining is not only relevant for the automotive industry, but also finds application in many other areas such as aerospace, medical technology, and mechanical engineering.

Contract manufacturing enables companies to quickly scale their production capacities without the necessity.

About Keller Feinwerktechnik

From development through to commissioning and service, we develop state-of-the-art automation solutions with the latest generation of robot technologies for customers worldwide in special-purpose machine construction.

Thanks to our many years of experience and the high individual qualifications of our approximately 50 employees, combined with strong commitment, we today offer our customers worldwide state-of-the-art automation solutions with the latest generation of robot technologies.

We face the challenges of tomorrow's market today.
Get in touch with us!

Latest Posts

Contract manufacturing is a strategic decision that enables companies to focus on their core competencies while outsourcing production to experienced partners.

How to request CNC contract manufacturing correctly: The checklist for a quick, reliable quote
Missing material specifications, unclear tolerances or conflicting CAD and drawing data can cause unnecessary delays to a CNC enquiry. Clarification takes time – and a quotation may end up being based entirely on assumptions. If you prepare your documentation thoroughly, you will receive a reliable quotation more quickly and minimise the need for subsequent changes.This checklist shows what information a CNC contract manufacturer typically requires for turned and milled parts, and how to structure your enquiry so that technical feasibility, quality, price and delivery date can be realistically assessed.
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19.03.2026

Our new website is online!
We wanted to move away from "you'll eventually find it somehow" towards a site that works faster, is clearer, and feels more like what our customers actually need in day-to-day work. Whether you are looking for a partner in special-purpose machine construction or contract manufacturing, have a specific task in mind, or simply want to see what we do: you now get to the point much more directly.
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Retrofitting machines: Modernizing instead of buying new benefits production and maintenance.
Machines run reliably, but requirements are changing: higher production volumes, new quality standards, a lack of spare parts, or rising energy costs. At the same time, new machines are becoming increasingly expensive and delivery times are longer. This is precisely where machine retrofitting comes in: Existing systems are specifically upgraded technically and functionally to the latest standards, without the need for a complete new purchase.The search intent of many decision-makers is twofold: they want to understand what retrofitting means (informative), and simultaneously assess whether a machine retrofit is economically worthwhile and which partner is suitable (commercial). This article provides you with both: clear fundamentals, typical measures, Industry 4.0 potential, and practical application examples.
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Request a free consultation now – we'll provide you with practical advice.

Are you planning a new plant or would you like to automate an existing process? Whether it's special-purpose machinery, plant engineering, or targeted automation solutions: We develop a solution that fits your requirements, interfaces, and target values – transparently, structurally, and with a clear focus on cost-effectiveness.

Use the contact form for a non-binding inquiry. Briefly describe your task, and we will get back to you promptly to discuss how we can sustainably improve your production with a customized machine.

Kai Marquardt

Special Machine Construction