Throwback 1985 – KELLER in newspaper

On this #ThrowbackThursday, let’s travel back to 1985. KELLER.Software developed the EPL1 Simulator on the Apple 𝘐𝘐e – fun fact: at that time, only 64 kB RAM was available! The EPL1 keyboard was meticulously handcrafted and was a special attachment for the Apple 𝘐𝘐e, providing an almost identical control experience to the original. Pretty cool, isn’t it?


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Jürgen Wollny

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    Farewell trainee Jan Fiebich

    Today is a bittersweet day! We have to bid farewell to our trainee Jan Fiebich, who has enriched KELLER.Software for three years with his enthusiasm, kindness, and dedication.

    It’s hard to believe that his apprenticeship has come to an end – time has truly flown by. But here he stands, holding his certificate as a business management assistant, ready to embark on the next chapter of his career.

    Congratulations and best of luck in your future endeavors, Jan! Don’t be a stranger, keep in touch!

    – Your KELLER.Software Team


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    Jürgen Wollny

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      KELLER logo then and now

      On this #ThrowbackThursday, we’re diving into the legendary KELLER logo. We’ve stayed true to ourselves over the years, and the “KELLER Blue” still adorns our logo.

      Which version of the KELLER logo did you first come across? Most of you are probably familiar with the 2001 version, right?


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      Jürgen Wollny

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        Day of German Unity 2025

        In the CNC world, we speak many languages: Fanuc, Siemens, Heidenhain … But no matter which control system—today, on October 3rd, the Day of German Unity, we celebrate what unites us: our shared…

        A long Weekend Awaits

        It’s time to kick off the weekend a little earlier this time in Germany, starting on Wednesday! It’s the perfect time to unwind, soak up the sun, and replenish your energy.

        The KELLER.Software team is taking a break and will return to full swing on Monday (June 12th) next week.

        Enjoy the holidays and have a fantastic weekend!


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        Jürgen Wollny

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          Throwback 1981 – KELLER in newspaper

          On this #ThrowbackThursday, we’re whisking you away to the year 1981 for a glimpse into the early days of “KELLER”. Back then, our visionary founder Siegfried Keller was making an impact as a dedicated teacher at an industrial school, yet the seeds of “KELLER” were already sown.

          Check out this captivating headline from the August 1981 issue of “Die ZEIT” newspaper, which proves the early existence of “KELLER”: “New ways in Wuppertal. A teacher brings modern techniques to vocational school lessons”.  (The article is in German, by the way!)

          Today, we celebrate our roots and honor the journey that has led us to where we are now. It’s remarkable how “KELLER” has evolved over the years. Here’s to progress, passion, and the enduring spirit of innovation!


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          Jürgen Wollny

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            International Day Against Homophobia 2023

            Today, in honor of the International Day Against Homophobia 2023, our CNC software SYMplus™ is shining brightly in the vibrant colors of the rainbow – Together for Acceptance and against discrimination.

            As we head into the long weekend, the KELLER.Software team wishes you a happy and colorful holiday! We’ll be back on Monday, May 22nd, ready to tackle your software needs with renewed energy and enthusiasm.

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            Jürgen Wollny

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              Throwback 1985 – Model for CNC training

              It’s #ThrowbackThursday, and this time we’re taking a trip back to the year 1985. We stumbled upon this vintage info sheet that outlines a “Model for CNC training” in just 3 simple steps. It’s fascinating to see how far technology has come since then – those screens and computers have definitely come a long way! But we’re curious, what else do you think has changed in the world of CNC training?


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              Jürgen Wollny

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                “Paperless” office and Earth Day 2023

                Happy belated Earth Day, everyone! On Saturday, April 22nd, we celebrated our 3 years of having a “paperless” office. We’ve come a long way in reducing our environmental impact, and we’re proud to say that most of our work is now done digitally.

                Having a paperless office has proven to be incredibly practical – especially during the pandemic when we switched to remote work. It’s allowed us to continue serving our clients seamlessly and even optimize our processes. We’re committed to doing our part for the planet, and we hope to inspire others to do the same.


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                Jürgen Wollny

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                  Do you have any questions?

                  Our experts are at your disposal. We look forward to your inquiry!

                  Jürgen Wollny

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                    Throwback 1984 – First workbooks, CNC turning, CNC milling

                    Did you know that our workbooks have been a staple in CNC education since 1984?

                    With their practical exercises and real-world applications, our workbooks have helped students learn CNC technology for decades. And even today, they remain a popular choice for educators who want to provide engaging and effective learning materials.


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                    Jürgen Wollny

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