Principles
Our self-image
KEHREN is a family owned company. Our basic potential is our acquired know-how, the solidarity of our employees and our true relationship to our suppliers and our customers. We will develop this potential in a way that success will effect on everybody involved. KEHREN employees are required to comply with the company principles.
Our values
To succeed requires the long-term satisfaction of our employees and business partners.
Inter-personnel dealings are characterized by
- Openness and mutual respect
- Confidence and reliability.
We are open-minded with regard to new developments. We accept the responsibility we all have for our company and we contribute to the benefit of society in this way.
Our competence
Our competence is the manufacturing and sale of grindig machine and grinding centres. We develop leading technology and offer a comprehensive service. We can provide solutions for our customers needs using our aquired know-how and our expertises. We react according to the changing demands of the market.
Our market
We are acting in market segments where we have been well-known as a competent and reliable business partner for decades. We feel at home on global markets. The satisfaction of our customers is our first priority. We secure our competitiveness by reliable, innovative technology, quick reactions and a maximum of flexibility.
Our quality philosophy
We will constantly advance our quality management system, our processes, our products and service to secure our business in the long term. Our first priority is to adhere to the legal and normative requirements of our products. We make highest demands to the safety of products for the security of our customers.
History
| 1934 | Founded by Paul Kehren, dealer for alloyed steel and subcontracor for “Deutsche Bahn” – railway Company |
| 1949 | Development and manufacturing of rotary table grinding machines |
| 1963 | After the death of the founder, the company is taken over by his son Helmut Kehren |
| 1980 | KEHREN equips the first grinder with CNC-control (Siemens Primo SG). |
| 1989 | The vertical grinding machine “Ri” with rotary table is developed and delivered one year later. |
| 1993 | Helmut Kehren dies, the company is taken over by Dr. Neumann and by Richard Krämer, who becomes sole executive director. Reorganizing and downsizing the vertical range of manufacture allows the workforce to be reduced from 98 to 54 employees. |
| 1996 | Development of the backlash-free direct drive of a rotary table, for grinding curves and serrations for example. The first machine is delivered to INDEX in 1997. |
| 2001 | Presentation of the first Ri grinder with Y-Axis in the side support |
| 2002 | Ulrich Krämer is appointed technical director, Bruno Mies becomes commercial director |
| 2003 | Development and presentation of the grinding machine in portal design |
| 2004 | Presentation of a Y-axis in the grinding head, for serration grinding |
| 2005 | Enlargement fo the Ri series by the Ri 4 and Ri 5 model |
| 2006 | Presentation of the Ri 8-4 grindturn model in slant bed design and enhanced ergonomics |
| 2008 | Development of a new hydrostatic table bearing with fewer components, with improved stiffness, improved true running and better damping properties. Implementation of hard turning and hard milling into the machining process |
| 2009 | 75th anniversary of the company founding |
| 2011 | Development of a new drive concept for the x-axis, hydrostatics in combination with a direct drive. |
| 2012 | Development and manufacturing of KEHREN grinding spindles for all KEHREN products |
| 2013 | Inauguration of a new assembly shop |
| 2014 | Development of a new, compact grinding centre in portal design for machining 5 faces of a work piece in one clamping |
| 2019 | Kehren becomes a Member of the Precision Surfacing Solutions Group |
| 2022 | Kehren closes the Hennef site and moves into a new state-of-the-art production facility in Troisdorf |
