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About us

Klein GmbH - your reliable partner for customized solutions in the fields of hydraulics, mechanical engineering and robotics. Find out more about our expertise and corporate philosophy.

About us

Welcome to Klein GmbH

Since 1963, we have been an established company in the manufacture of rotary unions and customized mechanical engineering components. With over 60 years of experience, we not only offer four different types of rotating unions, but also manufacture rotating unions exactly to our customers’ specific requirements. Our rotary unions enable the safe and reliable guidance of a wide range of media, such as air, hydraulic oil, emulsions, steam, water, thermal oil and many more – regardless of whether a low or high operating pressure is required, we cover it all.

Thanks to our modern CNC technology in 3-axis and 5-axis machining, we manufacture precise turned and milled parts – from simple components to sophisticated explosion-proof components. With extensive knowledge of various manufacturing processes, such as casting, extrusion and plastic injection molding, we produce components efficiently and profitably.

Our 15 machining centers and a production area of 1,800 m² enable us to implement even the most complex production orders with the highest precision. In addition to manufacturing, we also offer CAD design, assembly and prototype construction. Whether you need turned and milled parts or a complex custom-made product – we offer you tailor-made solutions. Contact us and benefit from our many years of expertise.

Infografik mit sechs Leistungsbereichen und Logo der Klein GmbH
Facts & Figures

Klein GmbH at a Glance

Four numbers that show what we stand for.

  • 1963

    Foundation

  • 1800 m²

    Production area

  • 20

    Employees

  • 15

    Machining centers

The story behind the Klein GmbH company

From our founding in 1963 to the present: the key milestones in our company's history.

Company History
  • 1963

    Founded by Ernst Klein

    Started developing and manufacturing rotary unions and pneumatic cylinders.

    Ernst Klein, Gründer der Klein GmbH
  • 1972

    Start of construction of the new company building

    Construction of the new corporate headquarters begins on a lot that, at the time, still housed a barn.

    Alte Holzscheune an einer Straße mit geparktem Auto
  • 1973

    Move to the new company building

    Move to the new company building at the current location.

    Historische Außenansicht des Firmengebäudes mit geparkten Autos
  • 1977

    First CNC production lathe

    Investment in the first CNC production lathe.

    Historische CNC-Drehmaschine mit Mori-Fanuc-Steuerung in einer Werkstatt
  • 1978

    Expansion of the CNC machine park

    Entry into complex contract manufacturing.

    Historische CNC-Drehmaschine von Mori Seiki in der Fertigung
  • 1982

    Leadership change

    The managing partners are passing the baton to the second generation: Friedhelm Klein and Karin Kunkel.

  • 1990

    Construction of the production hall

    The production facility, with over 1,800 m² of production space, is being built.

  • 2000

    Investments in Machinery

    Initial investments in the partial automation of processes and work steps.

    Arbeiter an einer Nakamura-Tome SC-300 CNC-Maschine
  • 2005

    Certification

    TÜV certification in accordance with DIN/ISO 9000.

  • 2008

    Explosion-proof parts

    Start of production of explosion-proof components.

  • 2019

    Change in Leadership

    Change of managing partners into the third generation.

  • 2022

    Investments

    Purchase of Spinner milling machines.

  • 2023

    Digitization

    Modernization of internal IT and brand presence.

Your contact person for your inquiry

Team introduction
  • Eduard Geworski

    Eduard Geworski

    Finanzen / Technik
  • Friedhelm Klein

    Friedhelm Klein

    Betriebsleitung / Technik
  • Alex Schneider

    Alex Schneider

    Produktion / Planung

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