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Kemppi presents the latest in their TIG torch range; the Flexlite TX series. These TIG torches are designed for the best reliable welding performances with a focus on the process of everyday welding. All Flexlite TX products feature tremendous technical performance lifespans and there is plenty of different sizes and types to choose from to fit your welding needs. Flexlite TX welding torches provide excellent user comfort and lowers the chance of welder fatigue. A firm grip is made from silicone rubber and the torches’ innovative design reduces time in wrist loading, allowing more time to concentrate on welding tasks.
All Flexlite TX welding torches comply with standard IEC 60974-7.
Answers to common questions about choosing, connecting and looking after 7-pin TIG torches in air-cooled and water-cooled versions.
It mostly comes down to current and how long you weld at it. Air-cooled torches rely on the surrounding air and the shielding gas for cooling, so they are lighter and simpler and suit lighter-duty, shorter or more portable jobs. Water-cooled torches need a cooling unit and coolant, but they usually have a higher duty cycle and a lighter, more flexible cable, which suits sustained high-current welding.Check the current you actually weld at and for how long, then compare it with the torch's rating on its data plate. Where you are close to the limit, the water-cooled option is usually the safer choice.
The amp rating is the current the torch is designed to carry, and the duty cycle is the share of a 10-minute period it can run at that current without overheating. Running above the rated current reduces the duty cycle, and a torch usually has no thermal cut-out of its own, so the machine's protection may not stop it. The consumables, hose and handle can be damaged if it overheats.If different parts of a torch have different current limits, the lowest one is the limit that applies. Always match the torch rating to your power source and your typical welding current, and read the exact figures from the data plate and manual rather than from a general guide.
A flexible neck can be bent by hand to reach awkward joints, though the bending point can loosen with repeated use. A rigid angled neck holds one fixed angle and is usually the choice for steady, repeatable work on open joints. Swivel and rotate-and-lock designs let you change the head angle without bending a neck, which can help with pipe and repeated positions.There is no single best option: pick the style that matches the joints you weld most often, then choose the size of torch from the current you need. Our team can help you choose if you are unsure.
Yes. The control connector carries the start signal and, on some torches, the current adjustment signal, so it has to match the remote or torch socket on your power source. A 7-pin torch will not necessarily suit a machine with a different connector, and the same pin count does not always guarantee a fit, so check your welding machine's manual.Most torches have a handle switch for start and stop. Current adjustment from the handle is only possible on torches with a remote-type control in the handle, and how the switch behaves (for example 2T or 4T) depends on the machine's settings. Check the torch specification before you buy.
If you are using a stick (MMA) power source for TIG, you generally need a torch with a manual gas valve in the torch body, because the machine does not control the gas for you. You open the valve to start the shielding gas flow, then strike the arc by scratch or touch start. Torches with a valve are designed for this purpose, usually on the air-cooled side.If your machine is a full TIG power source with a torch socket and gas control, you would normally use a torch without a valve and let the machine control the gas. Scratch start carries a higher risk of tungsten contamination, so it is not recommended for critical welds.
Connect the welding and control connectors to the power source and tighten them as the manual says, because loose connectors can overheat, cause contact problems and lead to water or gas leaks. Then connect the coolant inlet and outlet hoses to the cooling unit. The hose connectors are often colour-coded or marked, so make sure each hose goes to the correct connector.Crossing the coolant hoses can make the torch and torch body overheat. Use only the coolant the cooler maker specifies; automotive antifreeze is generally not recommended for welding coolers unless the maker says it is suitable. Check the flow warning on your cooler or machine before you strike an arc, and follow the instructions for your own machine and cooling unit.