Fastening technology and more

News and useful information from a stud welding industry expert.


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 over sole management of KÖCO in 2010. How did that …

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 that many companies and visitors would use the trade …

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 studs, compatible with all KÖCO stud welding …

A new Lightweight


With our robust Inverter 1305i every welding job becomes super easy. The long-lasting welding machine is suitable for weldable stud ranges between 3-16 mm and allows a maximum current load of 1300 A. The welding machine can be used in a wide range of applications. The time setting range of this lightweight machine is a maximum of 1000 ms and, in addition to safe operation, also offers flexible the accurate adjustment of the welding energy.