Service Portal

Our services at a glance

We turn stud welding into an all-round service experience. In our service portal, we not only offer you a fast direct connection to our service department, but also technological insights, instructions and direct insight into our processes. So you always know exactly what to expect. If you cannot find the right information, please contact us with your request using our form or directly. We stand by your side and help you where we can.

Online forms

Whatever you need in just a few short steps

Please exclusively use our online forms for repair orders and calibration requests.

Request repair

Start a repair order


Request a calibration

General inquiries

Fast contact made easy

Learn from the pros

Training in welding equipment: Application advice on stud welding equipment

KÖCO makes stud welding a service experience!

We know the problems of stud welding and the challenges our customers face every day on the construction site. And we know how important good service and solutions are in these moments. That's why we are now stronger than ever and fully committed to …

Interview with Dr. Harald Schulz

After 13 years as Managing Director of Köster & Co. GmbH, the time has come for Dr. Schulz to retire. Before he’ll make his farewells on December 31st 2022, he was happy to answer our questions for the following interview. Dr. Schulz, you took …

KÖCO at the EuroBLECH 2022

Four successful trade fair days in Hanover When, after four years and a forced break, the industry returned to EuroBLECH in Hanover at the end of October, KÖCO was of course there. After all, we had big plans - keyword "BRUNO". It was foreseeable …

Hello, my name is BRUNO👋

I'm the first automatic stud welding robot from KÖCO The demands that KÖCO placed on me as their first automated solution for stud welding, were extremely high: easy to handle, variable-programmable and -controllable, flexible to use with various …

KÖCO celebrates 70th anniversary

In 1952, Bruno Köster founded the company Köster & Co. in order to produce welding studs for the power plant and shipbuilding industry. Fast forward to today, KÖCO is the general market leader in stud welding technology and more successful than …

Blowing effect: (Un) Desired disturbance in direct current welding

Welding with luminous flux is usually done with direct current. It favors the build-up of a uniform arc and in most cases leads to the desired results. However, welding with direct current (mostly) has an unpleasant side effect. Definition of …

Technical support

Give us a call

For urgent matters, you can reach us at +49 2333 8306-0 on Monday to Friday between 8 a.m. and 5 p.m.

Visitors & suppliers:

+49 2333 8306-0

Collectors & carriers:

+49 2333 619880-16

Sales & service:

+49 2333 8306-25