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MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
  • MST355DCG-WP Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
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Rapid Ref : MST355DCG-WP  Mfr Ref : MST355DCG

Kemppi Master T 355DC Ready to Weld Water Cooled 350A TIG Welder Package - 400v, 3ph
MST355DCG MST355DCG-WP

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Professional’s number one choice for TIG welding

Master T sets the benchmark for weld quality, usability and energy efficiency in professional AC and DC TIG welding. Designed for welders that demand precision, Master T combines advanced welding performance with durability and ergonomics to excel in any application. Available in power variants up to 500 A, Master T delivers smooth and reliable arc ignition, reduced noise level and enhanced arc control, ensuring consistent, high-quality results from start to finish. Weld Assist technology speeds parameter setups, helping every welder establish benchmark settings by joint type, joint position and material thickness.

Product Details

Precision from start to finish

Smooth arc ignition allows great control, precision and efficiency. Weld Assist guides every user to faster weld parameter set-up, and lower noise levels help you maintain focus throughout your welding day.

Powerful performance

Value-based specifications combine powerful welding capability with additional performance features like Pulse, MicroTack and AutoCool technology, influencing improved welding control, quality, speed and energy efficiency. 

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Master T DC FAQs

Straight answers to the questions people ask most when choosing and using professional industrial DC TIG welding machines.

What is a professional DC TIG welder best used for?icon-minus-redicon-plus-red

Industrial DC TIG machines are used where weld quality and repeatability matter: stainless steel pipework, pressure vessels, food and pharmaceutical plant, power and process industries, and precision steel or nickel alloy fabrication. They are made for long working days at high current.

Because they only supply direct current, they are not for aluminium. If you need to weld aluminium as well, you want an AC/DC machine. For steel, stainless, copper alloys and titanium, DC gives a stable, focused arc.

When is a water-cooled torch necessary?icon-minus-redicon-plus-red

Gas-cooled torches suit shorter welds and moderate current. At higher currents, or in continuous or automated welding, the torch handle and head heat up faster than the gas can cool them, and it becomes uncomfortable and then damaging to the torch.

Water cooling carries heat away through a coolant circuit and a separate cooling unit. It also lets a torch be smaller and lighter for a given current. If your torch gets too hot to hold, or you must stop often to let it cool, move to water cooling.

Why are these machines three-phase?icon-minus-redicon-plus-red

At higher output the machine draws a lot of current. Three-phase supplies allow this power to be shared across three lines, which gives a stable supply and avoids overloading a single line.

Check the data plate for the supply, fuse and cable sizes, and have a qualified electrician carry out the connection and confirm the supply is adequate. Do not run a machine from a supply that does not match its rating, and use cable of the correct rating for any extensions.

How do I get a clean, bright weld on stainless steel?icon-minus-redicon-plus-red

Cleanliness is key. Degrease the joint, use clean stainless tools, and avoid tools that have been used on carbon steel. Control heat input and keep gas coverage steady, with a post-flow long enough to protect the cooling weld.

For pipe and tube you usually also need a purge of the inside, so the root side does not oxidise. A light straw colour is generally accepted, but heavy blue or grey indicates too much heat or poor shielding. Requirements are set by the job specification.

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