TIG Welder — Suzukid PosiTIG DC160

Product Page Video How-To

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Overview

The Suzukid PosiTIG DC160 is a compact DC-only TIG welder with lift-arc start, suitable for mild steel, stainless steel, and general workshop tasks. No AC mode → no aluminum TIG. Includes built-in pre/post gas flow, adjustable current, and simple front-panel controls.

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Key Specs (Essential Only)

• Type: DC TIG / DC Stick (DCEN recommended)
• Current Range: 10–160 A
• Input: 100 V (Japan)
• Arc Start: Lift-TIG
• Duty Cycle: ~160 A @ typical household voltage
• Torch Connector: Standard DINSE
• Gas Control: Internal solenoid + external regulator
• No AC mode: Cannot weld aluminum (needs AC cleaning)

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Polarity (Critical!)

Correct TIG polarity:

• 🔌 Torch (TIG torch cable): – (negative)
• 🔌 Work clamp: + (positive)**

This is DCEN (DC Electrode Negative). Reversing → extreme tungsten overheating and evaporation.

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Argon Setup

• Recommended flow rate: 7–10 L/min
• Best used with a ball flow meter (フローメーター) for accurate visual control
• Cylinder → regulator → ball meter → hose → torch

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Tungsten Tips

• Material: Thoriated (2% ThO₂), ceriated, or lanthanated
• Diameter: 1.6 mm (standard for 30–120 A)
• Grind: Long taper, parallel to length
• Stick-out: 3–4 mm from cup
• Torch cup: #5–7 ceramic

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Typical Settings

Material	Thickness	Current	Notes
Mild Steel	1–3 mm	40–90 A	DCEN, 7–8 L/min
Stainless	1–3 mm	50–100 A	Keep heat low to avoid color
Thin Sheet	<1 mm	20–40 A	Sharp tungsten, low flow
Stick Mode	—	70–120 A	For basic outdoor use

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Usage Notes

• Clean metal thoroughly (wire brush, acetone)
• Hold 1–2 mm arc gap
• Keep torch angle ~10–15° from vertical
• Avoid excess gas flow (causes turbulence → contamination)
• Listen for the post-flow hiss after releasing the trigger

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Accessories to Consider

• Ball flow meter (argon)
• #5–#7 cups
• 1.6 mm and 2.4 mm tungsten rods
• Filler rods (ER70S-2, SUS308L)
• Auto-darkening helmet
• Gas lens kit (optional, smoother flow)