Lift Start vs Scratch Start TIG: Which to Pick?

Lift TIG and scratch start on a welder title

When you read a TIG welder listing, the arc start method often sits beside the process name in a phrase of two or three words. "Lift TIG" is the clearest marker: it tells you the torch touches the work and the arc opens as you lift away. Scratch start rarely gets a label, because it is the plain, default way an arc can start on a machine without a lift circuit or a high-frequency circuit.

The start method is a buying question before it is a technique question. It changes how the tungsten behaves, how often you clean the tip, and how your first session feels. On a machine that lists TIG without any start word, the contact start is part of the deal, so weigh it before you choose.

• "Lift TIG": a controlled contact start, named on many stick and multi-process titles
• "HF" or "high frequency": a non-contact spark start found on dedicated TIG machines
• No start word on the title: a contact style start by default

Scratch start: contact is the method

Scratch start is the basic contact method for TIG. The tungsten touches the work, makes a quick scrape, and the arc forms as the torch lifts. It resembles striking a match more than pressing a button, and it asks the welder to coordinate the touch and the lift in one motion.

On listings, scratch start is the default on many stick welders that add a DC TIG mode. A title that reads "DC TIG" and says nothing about lift or high frequency points to this contact style. The stick welders guide compares machines that carry such modes, so you can see how the titles are worded.

If the title carries no start word, the manual is the place to confirm the behavior. Some makers use the phrase "scratch start" in the specification sheet even when the title stays short. Reading the maker's page before you buy tells you which circuit the machine uses.

Lift start: a low-current touch, then a clean lift

Lift start, written "Lift TIG" on many titles, still uses contact, but the machine limits the current while the tungsten touches the work. The arc begins as you lift the torch, so the start is easier to time and gentler on the tungsten. The maker's manual names the exact touch and lift sequence for each machine.

Lift start appears most often on stick welders and multi-process welders that add TIG as a supported mode. A dual-voltage stick and Lift TIG machine announces the controlled start on its title. The word "Lift" is a feature marker: the maker built the start into the power source rather than leaving the arc to a scrape.

How the start method treats the tungsten

In both methods the tungsten electrode touches the work, so the start is the moment of greatest wear. Scratch start's scraping contact can transfer metal from the work surface to the tip, dulling it and making the arc less predictable. Lift start keeps the touching current low, so far less metal transfers and the tip stays cleaner.

Tungsten cleanup is a normal part of TIG, and every machine will eventually ask you to dress the tip. Dressing means reshaping or replacing the tungsten so the arc behaves predictably. The start method decides how often you do it. Lift start puts less wear per start, which is worth weighing when you are learning and may start the arc dozens of times in one session. The tungsten electrodes article explains the tip options you will meet on listings.

Ease of use for a first TIG machine

For a first TIG machine, ease of use starts at the torch. Scratch start needs a coordinated scratch and lift, and a clumsy motion can stick the tungsten to the work. Lift start changes the motion to a touch and a lift, with the machine controlling the current, so the start is more predictable for a new welder.

Makers who list "Lift TIG" on stick and multi-process machines are pointing at that ease directly. Weldpro describes TIG as a high-precision method, and the start is one reason a machine can feel approachable. If you plan a stick or multi-process machine with a TIG mode, look for the lift start word on the title. The TIG versus stick for beginners article compares where each process fits a first machine.

What to look for on a listing

Compare the start words before you compare anything else. "Lift TIG" names the controlled method. "HF" (high frequency) names the non-contact spark start found on dedicated TIG machines, explained in the high-frequency start article. If neither appears, expect a scratch style contact start and plan for more tungsten cleanup.

The process set tells you where each start lives. Dedicated TIG welders usually pair with high-frequency start. Stick welders with a DC TIG mode, like the Forney 100 STx and 160 STx, use a contact start. A stick and Lift TIG machine, such as the YesWelder ARC-205DS PRO, puts the controlled start on the title. The best welder guide and the 120V welders guide help you narrow machines by supply and process.

What to pick for your situation

Questions

Is lift start the same as high-frequency start?

No. High-frequency start creates a spark across the gap without touching the work. Lift start touches the tungsten to the work at low current and opens the arc as you lift. They are different circuits, and a title usually names which one is present.

Does scratch start damage the tungsten?

Scratch start wears the tungsten faster, not instantly. The scraping contact can transfer metal to the tip, so you dress the tip more often. Lift start keeps the touching current low and reduces that transfer.

Can a machine without lift start do a controlled start?

The start method is built into the power source. A stick welder with a DC TIG mode uses a contact start as designed. If the title does not say Lift TIG, expect the contact method and plan your cleaning routine around it.

Which start is easier for a beginner?

Lift start is generally easier because the machine controls the current during contact and the arc opens as you lift. Scratch start works but asks for a cleaner scratch-and-lift motion and more frequent tungsten care.

Do all TIG machines use one of these two starts?

No. Dedicated TIG machines often use high-frequency start, which never touches the work. Lift and scratch are the contact starts found mainly on stick and multi-process machines with a TIG mode.