Lincoln K2535-1 Precision TIG 225 AC/DC TIG Welder
$2,444.00
The Lincoln K2535-1 Precision TIG 225 is a professional AC/DC TIG and Stick welder delivering 5–230 amps of output, advanced aluminum welding controls, built-in pulse capability, and industry-proven transformer reliability. It remains one of Lincoln Electric’s most respected shop TIG welders for users prioritizing weld quality, durability, and aluminum performance over portability.
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Description
Lincoln K2535-1 Precision TIG 225 AC/DC TIG Welder
The Lincoln Precision TIG 225 (K2535-1) is a professional-grade AC/DC TIG and Stick welder designed for fabrication shops, automotive restoration, aluminum welding, maintenance departments, and vocational training facilities. It features an exceptionally wide 5–230 amp output range, allowing precise welding on thin sheet metal as well as thicker materials. Its patented Micro-Start™ II Technology provides smooth arc starts and excellent low-amperage stability.
Unlike many portable inverter TIG welders, the Precision TIG 225 uses a heavy-duty transformer-based design known for long-term durability, stable arc characteristics, and reliable aluminum welding performance/
Key Features
- True AC/DC TIG welding
- Excellent for aluminum, stainless steel, chromoly, and mild steel
- Micro-Start™ II Technology for smooth arc starts
- Built-in TIG pulse control
- AC Auto-Balance® automatically optimizes aluminum cleaning and penetration
- 115V auxiliary outlets for water coolers and shop accessories
- Outstanding Stick welding capability, including E6010 electrodes
- Wide 5–230A output range for thin and thick materials alike
Best Applications
- Aluminum fabrication
- Automotive restoration and motorsports
- Stainless steel fabrication
- Marine fabrication and repair
- Aerospace and precision fabrication
- Maintenance and repair welding
- Welding schools and training centers
Advantages
- Exceptional arc stability
- Excellent aluminum TIG performance
- Built-in pulse functionality
- Reliable transformer-based construction
- Very wide amperage range
- Proven long-term durability
Professional users frequently describe the Precision TIG 225 as a dependable machine with excellent weld quality and aluminum capability. Community discussions generally regard it as a solid shop welder, though heavier than modern inverter models.
Limitations
- Heavy (nearly 200+ lbs)
- Requires 208/230V power
- Less portable than modern inverter TIG welders
- Lower energy efficiency than newer inverter-based systems
| Specification | Details |
|---|---|
| Brand | Lincoln Electric |
| Model | Precision TIG 225 |
| Part Number | K2535-1 |
| Welding Processes | AC TIG, DC TIG, Stick (SMAW) |
| Input Power | 208/230V Single-Phase |
| Output Range | 5–230A AC/DC |
| Maximum OCV | 75V |
| Duty Cycle | Up to 100% at lower output settings |
| Aluminum Welding | Yes (AC TIG) |
| Pulse Function | Built-in TIG Pulser |
| Auxiliary Power | Dual 115V receptacles |
| Weight | Approximately 192–215 |
| lbs | (87–98 kg) |
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