CK17 TIG Torch Packages FAQs
Answers to common questions about complete air-cooled TIG torch packages: choosing the cooling, head type, cable length and connection, and using them safely.
Should I choose an air-cooled or a water-cooled TIG torch?
Air-cooled (gas-cooled) torches are simpler: there are no coolant hoses or cooler to look after, and they are easy to move around. They are popular for work up to about 200 amps, and for lighter, intermittent use. Water-cooled torches are generally used at higher currents, often from around 250 amps upwards, and for long, continuous welding.
The deciding factors are the current you actually weld at and for how long. Compare that with the torch's rated amperage and duty cycle, and remember the rating is only as good as the weakest link, so check your welding machine's output too. If you are close to the limit, the next size up is usually the safer choice.
What does the duty cycle on a TIG torch rating mean?
Duty cycle is the percentage of a 10-minute period that the torch can be used at a stated current without overheating. A torch rated at 150 amps at 100% is intended to be used at that current continuously, while a lower percentage means the torch needs rest periods to cool. For example, 60% means about six minutes of welding in every ten.
Do not run a torch above its rating. The handle and cable heat up much faster, which is uncomfortable, can damage the insulation and shortens the life of the torch. Read the rating as a pair: the current and the duty cycle at that current. Ratings can also differ between DC and AC, so check both on the torch or in its manual. If you regularly weld close to the limit, choose a higher-rated or water-cooled torch.
What is the valve on some TIG torches for?
A torch with a gas valve lets you start and stop the shielding gas at the torch instead of at the machine. It is most useful with welding sets that have no built-in gas solenoid, such as simple scratch-start machines, where the gas would otherwise flow continuously or have to be turned on and off at the regulator.
If your machine already controls gas flow itself, a valve is not needed, and a torch without one is perfectly suitable. Using a valve can also help avoid wasting gas between welds. If you are unsure whether your machine switches the gas, check its manual or ask our team to help you choose.
Does the length of the torch cable matter?
Yes, it is a trade-off. A longer lead gives you more reach from the machine without moving it, which is handy on large fabrications. A shorter lead is lighter, less awkward to manage and easier to keep tidy, so it is often more comfortable for bench work.
A very long lead can also drag, snag and kink more easily, and whatever the length you should keep the cable reasonably straight and free of tight loops while welding. Choose the shortest length that comfortably covers your work area, and check the cable is the type your torch and machine connection are designed for.