Truncator: Precise truncation of tungsten electrode tips

New Truncator module

Our new Truncator is a separate module, designed and engineered for truncating of ground tungsten electrodes for TIG welding. The new Truncator module can be mounted on our well-known Ultima-TIG and Ultima-TIG-Cut grinders. Besides we offer a special version for Ultima-TIG-S.

Easy to use

1. Grind an electrode tip on your Ultima-TIG.

2. Loosen the electrode from the electrode holder and secure it in the adjustment for the Truncator

3. Insert the electrode holder in the Truncator.

4. With the grinder switched on, press the electrode holder in to truncate the electrode tip.

5. Switch off the grinder and remove the electrode from the electrode holder.

The size of the truncated tip can easily be adjusted to any desired diameter.

Special double module with two positions is available, if there is a need for two different electrode tips.

The Truncator also works with AutoGrind Digital mounted on the Ultima-TIG.

For better welding results

There are mainly 2 reasons to truncate the tip of the freshly ground electrode.

1) In high-current applications, the truncated geometry eliminates the risk of melting off the tip into the weld causing contamination.

2) In AC applications, the truncated geometry reduces the risk of obtaining an excessive ball at the tip. Knowing that an excessive ball causes an unstable arc and might fall and contaminate the weld.

Main features of new truncator module

• Precise truncating of tungsten electrodes


• Various positions on the grinding disc


• Eliminates the risk of melting off the tip into the weld causing contamination


• Ideal for AC welding where it reduces the risk of obtaining an excessive ball at the tip