FOUNDED IN A BARN
Gerrit ter Hoek founded his company Ter Hoek spark erosion. A barn at his home is converted into a manufacturing facility with wire EDM machines.
![History_Schuur_productieruimte_b](https://www.terhoek.com/hubfs/History_Schuur_productieruimte_b.jpg)
TOGETHER WE STAND STRONG
With already three permanent employees, the company moves to a new-build location in an industrial park.
![History_Handelsstraat_werkplaats_panoramafoto_a](https://www.terhoek.com/hubfs/History_Handelsstraat_werkplaats_panoramafoto_a.jpg)
TÜV ISO CERTIFIED
We work on our accuracy and obtain TÜV (Technical Inspection Agency) ISO 9001 certification.
![History_Handelsstraat_kantoor](https://www.terhoek.com/hubfs/History_Handelsstraat_kantoor.jpg)
RELOCATING
With 19 employees, we move to a new location at Propaanstraat 1 in Rijssen. We also have other techniques such as die-sinking and hole-drilling EDM.
![history_Propaanstraat1](https://www.terhoek.com/hubfs/history_Propaanstraat1.jpg)
NEW TECHNOLOGY: LASER MICROJET
The innovative Laser MicroJet technology offers us even more possibilities to machine new materials with great precision.
![history-lmj](https://www.terhoek.com/hubfs/history-lmj.jpg)
AS 9100
We have grown to 30 employees. Accuracy is also immensely improved, with the AS9100 standard (aviation) as the perfect culmination.
![History_AS9100_TerHoek](https://www.terhoek.com/hubfs/History_AS9100_TerHoek.jpg)
25-YEAR ANNIVERSARY
We are celebrating our 25th anniversary. And have a new, clear strategy: "Innovation of tomorrow as inspiration for today".
![25-YEAR ANNIVERSARY](https://www.terhoek.com/hubfs/TerHoek_August2021/images/2015_440x289_acf_cropped.jpg)
NEW TECHNOLOGY: PECM
With Precision Electro Chemical Machining (PECM), we are once again bringing in new technology. The electrical voltage causes the material to dissolve in a controlled manner in an electrolyte, which conducts the electrical current.
![history_pecm](https://www.terhoek.com/hubfs/history_pecm.jpg)
TOOL SHOP FOR PECM
We establish an in-house tool shop that focuses specifically on making tooling for PECM.
![history_tooling](https://www.terhoek.com/hubfs/history_tooling.jpg)
SOLAR PANELS
More than 700 solar panels fill our roof and provide much of our needed power.
![history-sun-roof](https://www.terhoek.com/hubfs/history-sun-roof.jpg)
BOARD OF DIRECTORS
Willem Jan ter Hoek joins the board as CEO, and Gerrit ter Hoek becomes technical director.
![History-Directie2022](https://www.terhoek.com/hubfs/History-Directie2022.jpg)
EXPANSION OF MACHINERY
We expand our machine park to 16 wire EDM machines and 3 PECM machines.
![history_pecm2en3](https://www.terhoek.com/hubfs/history_pecm2en3.jpg)
ROBOTIZATION PROJECT
A robotization cell is our next step toward 24/7 production. A Fanuc R-2000IC robot is connected to 6 wire EDM machines (see also video at the bottom of this page).
![history-robot](https://www.terhoek.com/hubfs/history-robot.jpg)
TEAMWORK
We have grown to 40 employees. Did you know that we employ 9 engineers to solve problems for the high-end manufacturing industry? Precision problems like low surface roughness (0.08 Ra), thermal stress, or high cleanliness standards.
![History_2023_Groepsfoto_medewerkers_TerHoek](https://www.terhoek.com/hubfs/History_2023_Groepsfoto_medewerkers_TerHoek.jpg)
EXPANSION
In 2024 we have grown to a team of 50 employees. And our continuous expansion of machinery tells us the current location is no longer sufficient.