Neckarsulmstrasse 41
CH-2540 Grenchen, Suisse
Tel: +41 32 654 64 74


About us

Leader in the manufacturing of centerless grinding machine

TSCHUDIN AG is an internationally active technology company based in Grenchen (Switzerland) with global representation. TSCHUDIN is specialised in the development and manufacture of centreless grinding machines for the production of high-precision mechanical components.

In the grinding sector, the name TSCHUDIN has enjoyed an outstanding reputation for more than 75 years – all over the world. Especially when it comes to complex challenges, the innovative company provides grinding solutions tailored to customer requirements, characterised by both technical and economic excellence.

The patented simplicity of the TSCHUDIN centerless grinding machine

Inventiveness, simplicity, reliability and consistent customer focus: These are the cornerstones on which TSCHUDIN builds its success. These fundamental values have characterised the company’s culture since it was founded in 1947 in Grenchen, the heart of the Swiss clockmaking industry.

With the patented ecoLine, proLine and CUBE 350 series, TSCHUDIN has developed a unique machine concept for centreless grinding machines. Reliability, mastery of thermal growth and reproducible grinding processes give customers crucial advantages globally in the market.



A leader in innovation since 1947


    In May TSCHUDIN AG and the UNITED GRINDING Group are entering into a strategic partnership involving cross‐ownership. The aim is to provide their customers with even more comprehensive support by offering complementary grinding solutions and using shared sales networks.

  • Further strategic development

    Foundation of the sales company TSCHUDIN (Shanghai) Co., Ltd in the Swiss Centers China on February 1. The TSCHUDIN employees in Shanghai are responsible for service and sales in the Chinese market.

    New headquarters are opened in Grenchen on May 22 – a modern industrial building with five-storey office annex.

    Presentation of the compact, centreless grinding machine CUBE 350 at the EMO in Hanover on September 19.

  • proLine 600

    The TSCHUDIN proLine 600 celebrates its world premiere at the AMB in Stuttgart. A CUBE concept study is also presented.

  • proLine 400 CNC

    Curtain call: The centreless grinding machine TSCHUDIN proLine 400 CNC is presented at the GrindTec in Augsburg.

  • New patent

    The TSCHUDIN proLine system additionally features a 4th CNC axis (Y-axis, Patent US 9,085,059) to move the regulating wheel vertically in order to eliminate the need to adjust the workrest blade height. Automatic compensation functions will keep the grinding geometry consistent throughout the entire grinding process.

  • Angle head centerless grinding system

    The ecoLine 410A CNC is presented – the angle head centerless grinding system for simultaneous grinding of diameters and large front surfaces.

  • USA Patent

    The mobile workpiece axis (W axis) is also granted a patent in the USA.

  • Patented axis concept

    The TSCHUDIN centreless grinding machines feature a new arrangement of the axes using a simplified concept (Patent EP 1330336 ). The slide of the grinding wheel spindle (U-axis), the regulating wheel spindle (X-axis) and the work rest support (W-axis) are designed as independent CNC axis.

  • Increase in productivity

    TSCHUDIN forges ahead with automation and efficiency: An ecoLine CNC project with 4-track grinding and fully automatic production is realised for the first time.

  • Automation

    The mobile workpiece axis (W axis) is granted a patent in Europe.

    TSCHUDIN realises an ecoLine CNC project for the first time with fully automatic loading by a robot.

  • ecoLine CNC

    Delivery of the first ecoLine CNC machine.

  • Advanced technology

    TSCHUDIN develops the new ecoLine series of centreless grinding machines with a mobile workpiece axis (W axis). Linear motor technology is used for the first time instead of ball screws.

  • TC Line & GranitLine

    Two new, innovative series are presented:

    TC Line: The centreless grinding machine with electromechanical control is designed for machining small and medium-sized workpieces.

    GranitLine: A machine bed made from natural granite and a 6-axis CNC control are two of the highlights of this centreless grinding machine, which is designed for medium-sized and large workpieces.

  • Focus on centerless grinding machine

    The product group cylindrical grinding machines „between centers” is sold. TSCHUDIN AG now focuses entirely on centreless grinding.

  • Acquisition

    TSCHUDIN grows by taking over the production of centreless grinding machines from the company Ernst Schäublin (ESO) in Oberdorf (Switzerland).

    Cylindrical Grinding Machine – Universal 410 U / 610 U

  • HTG 310

    Compact grinding machine HTG 310

  • Stepper motor control

    HTG 432 and 442 with stepper motor control

  • HTG 440

    External cylindrical grinding machine HTG 440

  • HTG 600

    Cylindrical grinding machine HTG 600

  • HTG 402

    Cylindrical Askew Grinding Machine HTG 402

  • New building

    TSCHUDIN purchases the new factory building on the Maienstrasse in Grenchen.



    Two years before the company was founded, in 1945, Hans Rudolf Tschudin worked for the company Schäublin SA in Bévilard (Switzerland) as a technical draughtsman in the Design Department.

    During his work, he noticed that large machines were always used, even for the production of small parts. He began to consider the idea of developing a concept for more compact machines. Hans Rudolf Tschudin never lost sight of this idea: He bought a drawing board and got down to designing. In the following years, he developed the first prototypes for an external cylindrical grinding machine and founded TSCHUDIN AG in 1947.