Fronius TTG1600 TIG Torches FAQs
Answers on choosing, setting up and looking after a gas-cooled manual TIG torch in the lower amperage class.
What does the amp rating on a gas-cooled TIG torch really tell me?
The rating is the current the torch can carry at a stated duty cycle, which is the share of a 10-minute period it can weld at that output without overheating. A rating on its own is not the whole story: a torch used above its rating heats up faster, and the usable duty cycle drops.
Check the data plate or manual for the rating and the duty cycle it applies to, and whether separate figures are given for DC and AC. Choose a torch comfortably above the current you normally weld at, not one that only just matches it.
Is a gas-cooled torch enough, or do I need a water-cooled one?
For intermittent or light-to-medium current work, a gas-cooled torch is usually enough. It relies on the surrounding air and the shielding gas for cooling, so it needs no radiator or coolant and is simpler to set up, maintain and move around the workshop.
The trade-off is that the cable is generally heavier and stiffer because it carries more copper, and the handle can become tiring on long welds. If you weld at higher currents for long periods, a water-cooled torch becomes the better choice. Compare your typical current and arc-on time with the torch rating and duty cycle.
What is a flexible torch body for, and are there downsides?
A flexible-neck torch can be bent to the angle you need, which helps with limited joint access and awkward positions where a rigid body will not reach comfortably. It is often chosen for tube, corners and fabrication in tight spaces.
The neck is usually adjusted by hand, so it is worth setting it once for the job rather than flexing it repeatedly, as repeated bending can eventually wear it. Check the manual for the maker's guidance on bend limits. For open, flat work a rigid body is often more stable and easier to control.
Should I choose a torch with current control in the handle or use a foot control?
Both are widely used. A foot control keeps both hands free and many welders find it natural for easing current up and down. A control in the torch handle suits work where a foot pedal is awkward, for example standing, positioning around a large part or working on site, and is often preferred for that reason.
Check that your machine supports a torch-mounted control and that the torch connections match the machine, as not all combinations are compatible. The machine manual will show which remote control options it accepts.