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Trim-Line™ torches offer the same current ratings as the standard models they replace while providing a smaller, lighter design.
Answers for buyers choosing a complete small air-cooled micro TIG torch package with a superflex lead.
A micro TIG torch is a very small, light air-cooled torch with a slim neck and small head, designed for fine work: thin sheet, small fabrications, instrument and tube work, and joints where a standard torch will not fit. Its size gives you a better view of the weld pool and more precise control in tight spaces.It is a low-current tool, not a general-purpose torch. For thicker material or long runs at high current, a larger torch, usually with a higher rating, is a better choice. Check the torch rating against the current you plan to weld at.
The rating is the current the torch is designed to carry at its stated duty cycle. Duty cycle is normally quoted as a percentage of a 10-minute period, so a torch rated for a given current at a lower percentage must rest for the remainder of that period.Running above the rating makes the handle and lead heat up faster, which shortens life and can cause the torch to become too hot to hold. Do not overdrive a small torch. If the job needs more current, choose a torch with a higher rating. The rating and duty cycle on the torch data plate or in the maker's manual are the figures that apply to your torch.
A superflex lead is a lightweight, very flexible hose for the power and gas supply, usually with a soft rubber or silicone-type inner and a braided outer layer. It is lighter and more pliable than a standard hose, so it pulls less on the torch head, which helps with fine control and reduces hand fatigue.Even so, protect it from sharp edges, hot metal and kinks, and check the maker's instructions for the correct torch series and connection type before ordering a replacement.
Yes, small torches suit thin sheet because you can work at low current with fine control. Thin material burns through easily, so keep the current low, move steadily and ease back if the pool becomes too fluid.Tungsten diameter should match the current: a smaller diameter makes arc starting easier at very low amperage, while larger sizes suit higher currents. Ceriated or rare-earth types are often chosen for low-current work. Keep the tungsten sharp and clean, and check the maker's current guide for the collet and tungsten sizes your torch accepts.
