New video on YouTube: Complete CNC turning: drilling, roughing, thread cutting
- Take a look: https://youtu.be/8fthYa9h1T4
Using the 3D simulation of our SYMplus™ CNC software, we will show you how task 14 from Christiani’s “Collection of tasks in CNC turning technology according to PAL2020” could look like in reality.
This task includes:
- Facing G1
- Drilling according to PAL with cycle G84
- Roughing and internal roughing with cycle G81
- External and internal finishing with G42/G41
- Thread turning according to PAL with cycle G31
- Machining the reverse side after reclamping
- Interested to see it? Click on this link to watch the video: https://www.youtube.com/@CNCKELLERGmbH
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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digita Prize at the didacta (Throwback 2002)
In year 2002, KELLER received the “Digita Prize” for the products, “ShopMill Multimedia” and “ShopTurn Multimedia” which were developed in cooperation with SIEMENS.
This Educational Technology Award is presented annually at the didacta (education trade fair) exhibition and honors outstanding digital teaching and training services in German-speaking countries.
In the photo (from left to right): Mr. Wöhrmann (SIEMENS), Mrs. Keller, Mr. Gatti (SIEMENS), Mr. Keller.
Discover more about our history on our website: https://cnc-keller.com/history/
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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SYMplus™ Update 66
Good News for all SYMplus™ users!
Update 66 of our SYMplus™ CNC software is now available for you to install. With a variety of improvements and optimised functions, we want to ensure that you can work with the software more smoothly than ever before.
- Find out more about the new features here: symplus-support/new-features-optimizations/
- And for anyone wondering how to update SYMplus™, here’s a detailed guide on our support page: support-en.cnc-keller.de/entries/000154/
Thank you for your trust in us and our software.
– Your KELLER.Software team
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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New video on YouTube: Steep Cone Tool Holder with integrated Pull Stud (CNC Turning)
- Take a look: https://youtu.be/ao6tjuqGYbM
Using the 3D simulation of our SYMplus™ CNC software, we will show you how task 12 from Christiani’s “Collection of tasks in CNC turning technology according to PAL2020” could look like in reality.
This task includes:
- Radial Grooving Cycle G86
- Circumferential Groove
- Interested to see it? Click on this link to watch the video: https://www.youtube.com/@CNCKELLERGmbH
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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KELLER at the NORTEC Tradefair (Throwback 2008)
In the year 2008, KELLER was present at the NORTEC Tradefair for production in Hamburg, North Germany along with HAAS and presented latest innovations and solutions to trade fair visitors.
The photo shows our head of sales, Mr. Reckermann talking to a HAAS employee near one of the CNC machines.
Discover more about our history on our website: https://cnc-keller.com/history/
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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New video: Final Exam Part 2 for Machinists, Summer 2024 (Turning)
Simulation of the IHK Final Exam (Exam conducted by Chamber of Industry & Commerce, Germany) Part 2 for Machinists, Summer 2024, CNC Turning is now available on YouTube:
- Watch the video: https://youtu.be/rMk0jaUg78w
In the Turning examination task this time, all machining operations had to be carried out with driven tools on chordal surfaces (G19 IP5). In particular, gaps in the cycle calls (G7x) had to be filled, where the candidates needed to understand the axes in the G19 plane (YZ). In contrast to milling, however, it was not necessary to program entire contour trains. Instead, they were required to determine individual coordinates for the “center tolerance” and ISO fits. There were further gaps for recesses, an internal recess and jump addresses in program part repetitions.
- Interested to see more videos like this? Click on this link to visit us: https://www.youtube.com/@CNCKELLERGmbH
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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Newsletter June 2024
The exams are finally over and the summer vacation is just around the corner. But before you go fully into vacation mode, let’s take a look back at the exams – especially at the tasks given. What content was covered? What tricky challenges had to be mastered this year?Bye-bye exam stress, Hello summer!
Milling:
There were no major surprises in the milling exam. Of course, it was necessary to master the functions for switching the radius correction on and off and to apply the commands for soft approach and departure that have been changed since 2020.
In addition, contour points had to be read from the drawing and starting point coordinates had to be subtracted from the centre point coordinates, which were always dimensioned absolutely, to calculate I and J. Two fitting dimensions had to be determined, a rotational speed had to be calculated and some gaps in the cycle for thread milling (G88) and tapping (G84) had to be filled – similar to the previous winter exam.
You can view the Milling test task as a 3D simulation here: https://youtu.be/qdoeAGjywiE
Turning:
In the Turning examination task this time, all machining operations had to be carried out with driven tools on chordal surfaces (G19 IP5). In particular, gaps in the cycle calls (G7x) had to be filled, where the candidates needed to understand the axes in the G19 plane (YZ).
In contrast to milling, however, it was not necessary to program entire contour trains. Instead, they were required to determine individual coordinates for the “center tolerance” and ISO fits. There were further gaps for recesses, an internal recess and jump addresses in program part repetitions.
You can view the Turning test task as a 3D simulation here: https://youtu.be/rMk0jaUg78w
When will the next Software-Update be released?
We know that many schools use the summer vacation to update their IT infrastructure, so we’re working hard behind the scenes to get the latest SYMplus update ready for you to download before the summer vacation! As soon as it is available, you will be informed via this newsletter, our social media channels (Facebook, LinkedIn, Instagram) or on our website.
As soon as the update has been released, you can read about all the new features here: cnc-keller.com/symplus-support/new-features-optimizations/
Wish you a relaxing Summer.
– Your KELLER.Software Team
Next Appointments in the KELLER.Academy:
Basics of graphical programming (CAD/CAM) with SYMplus™
- 25.-26. July 2024
- 05.-06. September 2024
Basic DIN/PAL programming with SYMplus™
- 08.-09. August 2024
- 19.-20. September 2024
Driven tools, level swivel and reform PAL2020
- 11.-12. July 2024
- 22.-23. August 2024
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Our experts are at your disposal. We look forward to your inquiry!

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New video: Final Exam Part 2 for Machinists, Summer 2024 (Milling)
Simulation of the IHK Final Exam (Exam conducted by Chamber of Industry & Commerce, Germany) Part 2 for Machinists, Summer 2024, CNC Milling is now available on YouTube:
- Watch the video: https://youtu.be/qdoeAGjywiE
The milling exam task had no major surprises: Switching on and off functions of the radius correction and the commands for soft approach and departure that have been updated since 2020, had to be mastered. Reading contour points, calculating start point coordinates, determining two fitting dimensions, calculating rotation speed and filling in gaps in the cycle for thread milling (G88) and tapping (G84).
- Interested to see it? Click on this link to watch the video: https://www.youtube.com/@CNCKELLERGmbH
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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GKE + CAM – Graphical Programming (Throwback 1989)
Today we look back on our product “GKE + CAM”, the forerunner of our current CNC software SYMplus™! This tool revolutionised “graphical programming”. With clear pictograms, the most complex geometries could be captured and combined with the raw part in the work plan. Production strategies such as roughing and finishing were implemented directly in tool paths, without the need for G and M functions.
Well-known personalities like the one in the photo, Johannes Rau (then Minister-President of NRW, later Federal President), were highly impressed. On the right next to him are Mrs. and Mr. Keller.
Fun fact: Rau was born in Wuppertal and was even mayor of his home town from 1969 to 1970.
Discover more about our history on our website: https://cnc-keller.com/history/
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!

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Basic DIN/PAL programming with SYMplus™ (KELLLER.Academy)
Last week, the KELLER.Academy focused on DIN/PAL programming with SYMplus™.
Congratulations to Mr. Schneider from Wolfgang Loch GmbH & Co. KG, as well as Mr. Harmsen-Pawils from MIELE (Lehrte plant) and Mr. Möllinghoff from BZI Remscheid on their successful completion of the course! Thank you for a great time! We hope to welcome you back to Wuppertal soon.
Interested in developing your professional skills too? Browse through the courses offered by the KELLER.Academy: https://cnc-keller.com/keller-academy/
Do you have any questions?
Our experts are at your disposal. We look forward to your inquiry!
