ARCPEX TIG Welder Comparison
DC TIG200 vs ACDC TIG200P — full specs, duty cycle, max welding thickness at 110V & 220V, aluminum AC TIG capability, and which one is right for your work.
🔧 Side-by-Side Overview
ARCPEX DC TIG200
DC TIG · MMA Stick · HF Arc Start
ARCPEX ACDC TIG200P
AC/DC TIG · Pulse · MMA · HF Arc Start
📊 Full Spec Comparison Table
| Specification | DC TIG200 — $229.99 | ACDC TIG200P — $539.99 |
|---|---|---|
| Output Current | Up to 200A | 10–200A |
| Input Voltage | 110V / 220V Dual | 110V / 220V Dual |
| Duty Cycle | 60% @ 200A | 60% @ 200A |
| 🔵 Max Thickness (110V) | 2mm steel / stainless | 2mm aluminum / steel |
| 🔴 Max Thickness (220V) | 6mm steel / stainless | 6mm aluminum / steel |
| AC Mode (Aluminum TIG) | ✗ DC only | ✓ AC/DC |
| Pulse TIG | ✗ | ✓ Advanced pulse |
| HF Arc Start | ✓ | ✓ |
| MMA Stick | ✓ | ✓ |
| Aluminum Welding | ✗ Not supported | ✓ Excellent (0.5–6mm) |
| Stainless Steel | ✓ Excellent | ✓ Excellent |
| Carbon Steel | ✓ Excellent | ✓ Excellent |
| Exotic Alloys | Limited | ✓ Supported |
| Weight | 11.8 lbs (5.35 kg) | 13.2 lbs (6.0 kg) |
| Circuit Breaker (220V) | 20A minimum | 30A minimum |
| Best For | Steel, stainless, budget TIG | Aluminum, exotic alloys, pro |
🧲 Compatible Materials
Carbon Steel
Both models ✓
Stainless Steel
Both models ✓
Aluminum
ACDC TIG200P only ✓
Titanium
ACDC TIG200P ✓
Copper Alloys
DC TIG200 limited
Inconel
ACDC TIG200P ✓
🎯 Which One Should You Choose?
🔵 Choose DC TIG200 ($229.99) if you:
- Weld carbon steel and stainless only
- Have a budget under $300
- Are learning TIG for the first time
- Do not need aluminum welding
- Work on automotive or food-grade SS
- Want a lightweight portable TIG (11.8 lbs)
🔴 Choose ACDC TIG200P ($539.99) if you:
- Need to weld aluminum (boats, frames, aerospace)
- Work with exotic alloys (titanium, Inconel)
- Want pulse TIG for thin material control
- Need AC mode for aluminum oxide removal
- Run a professional fabrication shop
- Want the most versatile TIG available
❓ TIG Welder FAQ
How thick can these TIG welders weld on 110V vs 220V?
On 110V, both handle up to 2mm steel or aluminum (ACDC model). On 220V, both handle up to 6mm.
Can the DC TIG200 weld aluminum?
No. The DC TIG200 is DC-only and cannot weld aluminum. For aluminum TIG, you need the ACDC TIG200P with AC mode.
What is pulse TIG and do I need it?
Pulse TIG alternates between high and low amperage for better heat control on thin materials. Available only on the ACDC TIG200P.
What shielding gas do I need for TIG welding?
Use 100% Argon at 15–20 CFH for steel and stainless, and 20–25 CFH for aluminum. Never use CO₂ for TIG.
Ready to Choose Your TIG Welder?
Compare all ARCPEX welders or talk to our experts for a personalized recommendation.
