Service

In our Service Portal, you’ll find technological insights, guides, and a direct look into our processes. For specific questions, contact us via our form or by phone.

Calibration determines and documents how accurately your stud welding machine’s display matches the actual value, without making any adjustments to the device itself. It is essential for quality assurance, ensures reproducible welding results, and fulfills legal documentation requirements. KÖCO recommends annual calibration according to DIN EN ISO 17662, carried out by our qualified specialists.

Typical signs include inconsistent welding results despite the same parameters, increased spatter, frequent ignition problems or mechanical play in the gun or contact parts. First check the wear parts (e.g. contact tube) and carry out a test weld with a bend test. If the deviations persist, maintenance or calibration is recommended.

Yes, in the event of equipment failure, you will receive a loaner within 24 hours (Germany) or 48 hours (EU-wide) for the duration of the repair. You cover the transport costs. This service is available for 24 months from the date of purchase.

Before shipping your welding machine for repair, first check whether it’s truly a device fault. Often, poor welding results are caused by operator errors or incorrect parameters. Use our welding parameter diagram to verify your settings and working method. If errors persist after this check, it’s likely a genuine equipment defect and repair is necessary.

Welding machines have a rear-shifted center of gravity due to the heavy transformer and must therefore be securely and stably fixed to a pallet. Use sturdy straps (not too tight to avoid housing deformation), edge protection, and shrink wrap to protect against dirt and moisture. Ensure the machine’s wheels cannot slip into pallet gaps. This can cause tilting and transport damage. Closed pallets or wooden crates are also suitable, provided the machine is adequately secured.