STAHLWERK AC/DC TIG 200 ST Digital Welding Machine – 3-in-1 TIG / MMA / Clean 200A Inverter

A 200A AC/DC TIG Welding Machine Designed for Industrial Performance

The STAHLWERK AC/DC TIG 200 ST Digital combines modern IGBT inverter technology with a color LED digital control panel to deliver a smooth, precise, and productive welding experience. Its 200 A output allows you to work on both thick structures and thin sheets with full arc control.

With a lightweight design of only 12.7 kg and compact dimensions (449 × 238 × 437 mm), this machine integrates perfectly into workshops, construction sites, or mobile operations.

IGBT Inverter Technology – Stable Arc & High Efficiency

High-performance IGBT electronics ensure:

• A stable and precise arc
• Excellent energy efficiency
• Compact and robust construction
• Optimized power consumption

Complete Welding Functions: TIG AC/DC, MMA and Clean

TIG DC Welding (10 – 200 A)

Ideal for steel, stainless steel, copper, and brass. Continuous current adjustment allows perfect penetration control according to material thickness.

TIG AC Welding – Aluminum Specialist

Designed for aluminum and its alloys with advanced settings:

• Adjustable AC frequency
• Adjustable AC balance
• Configurable cleaning current
• 4 AC waveforms: square, triangle, trapezoid, sine

These parameters effectively break the oxide layer, optimize bead shape, and ensure a professional finish.

MMA / Stick Welding (30 – 160 A)

• Compatible with a wide range of electrodes
• Hot Start for easier arc ignition
• Anti-Stick to reduce electrode sticking

Integrated Clean Mode – Electrochemical Stainless Steel Cleaning

The Clean mode enables cleaning, passivation, and finishing of stainless steel weld seams. Result: visually clean welds, smooth surface, and improved corrosion resistance — ideal for equipment manufacturing and railing construction. (Carbon fiber brush and electrolyte not included.)

Spot & Repeat Function – Ideal for Bodywork and Thin Sheets

• Spot mode with adjustable duration for repeatable tack welds
• Low heat input and reduced distortion
• Repeat function for consistent automatic cycles

Full Digital Control & Intelligent Memory

Color LED Digital Control Panel

Intuitive interface with central rotary knob for quick adjustment of:

• Pre-gas (0–2 s)
• Start current
• Up-slope
• Main current
• Down-slope (up to 25 s)
• Final current
• Post-gas

Work Memory (0–9)

Save up to 10 complete configurations and recall them instantly. Perfect for series production and repetitive material/process combinations.

HF Non-Contact Ignition & 2T/4T Mode

• High-frequency ignition to preserve the tungsten electrode
• 2T mode for short welds
• 4T mode for comfortable long welds
• Remote control connection (WP26FR torch not included)

Intelligent Cooling & ST-Guard Housing

High-performance ventilation for extended duty cycles. Robust, ergonomic, and secure ST-Guard housing designed for intensive industrial use.

Technical Specifications

• TIG DC range: 10 – 200 A
• TIG AC range: up to 200 A
• MMA range: 30 – 160 A
• Technology: IGBT inverter
• Weight: 12.7 kg
• Dimensions: 449 × 238 × 437 mm
• Functions: TIG AC/DC, MMA, Clean, Spot, Repeat
• Display: Color LED digital
• Memory: 10 programs

Included:

• 1 x STAHLWERK AC/DC TIG 200 ST Digital welding machine
• 1 x Professional TIG welding torch WP-26FR / 3-meter hose package* with control wheel for remote current adjustment on the handle and flexible torch head
• 1 x 8-piece TIG accessory set: (3 x gas nozzles sizes 5, 6, 7 / 1 x collet 1.6 mm / 1 x collet body 1.6 mm / 2 x torch caps – one short and one long / 1 x universal 1.6 mm tungsten electrode)
• *Pre-mounted accessories shown in the torch illustration are part of the 8-piece kit
• 1 x 3-meter ground cable
• 1 x 3-meter electrode holder
• 1 x wire brush
• 1 x chipping hammer
• 1 x 5-meter gas connection hose with quick connector
• 1 x quick connector for gas regulator (female)
• 1 x protective cover