Hyunald Electric Weld

By Hyunald Electric Weld – Leading Manufacturer & Supplier of

Digital Heavy Strong MMA/TIG 402 Pulse Inverter Welding Machine

Category: Digital Heavy ARC TIG Inverter Welding Machine

The STRONG ARC / DC TIG 402 PA PULSE is a high-performance digital inverter welding machine engineered by Hyunald Electric Weld for industrial-grade ARC and TIG welding applications. With a current capacity of up to 400A and advanced pulse TIG technology, this machine delivers clean, precise, and deep-penetration welds, making it ideal for professionals in fabrication, construction, pipeline welding, and heavy manufacturing.

Backed by IGBT-based inverter technology and an intuitive digital control interface, the 402 PA model offers consistent arc performance, excellent energy efficiency, and superior control over welding parameters. Whether you're welding mild steel, stainless steel, or alloy metals—this machine ensures performance that meets the highest industrial standards.

Features & Benefits -

  • Dual Welding Modes (MMA & DC TIG) - Flexibility to switch between Stick and TIG processes for a wide range of applications
  • Pulse TIG Functionality – Enhanced arc stability with reduced heat input—ideal for thin materials and precision welding.
  • Digital Control Panel - User-friendly interface for adjusting welding current, pulse frequency, base/peak current, and more.
  • High Duty Cycle (80% @ 400A) - Designed for continuous industrial operation without overheating.
  • High-Frequency Arc Ignition - Ensures smooth and reliable TIG starts with minimal tungsten contamination.
  • Advanced IGBT Technology - Ensures high efficiency, low power consumption, and stable welding performance.
  • Built-In Protections - Includes thermal overload, overcurrent, and over-voltage protection for operational safety.
  • Industrial-Grade Cooling System - High-speed fan ensures consistent performance under heavy workloads.
  • Compact and Robust Design - Durable build for harsh industrial environments with easy portability.

Applications -

  • Heavy Steel Fabrication & Metal Structures.
  • Pipeline & Pressure Vessel Welding.
  • Oil & Gas Infrastructure Projects .
  • TIG Welding of Stainless Steel & Mild Steel.
  • Machinery Repair & Industrial Maintenance.
  • Shipbuilding & Marine Engineering
  • Industrial TIG Fabrication Workshops

Technical Specifications -

Model STRONG ARC/DC TIG 402 PA PULSE
Category Digital Heavy ARC/DC TIG Inverter Welding Machine
Input Voltage 415V ±10%, 3 Phase, 50/60Hz
Rated Input Power 18 kVA
Output Current (TIG) 20A – 400A
Output Current (MMA) 30A – 400A
No-load Voltage 70V
Duty Cycle 80% @ 400A
Pulse Frequency 0.5 – 300 Hz
Base/Peak Current Control Yes (Fully Adjustable)
Efficiency ≥ 90%
Power Factor 0.95
Cooling System High-Speed Industrial Fan Cooling
Insulation Class H
Protection Class IP23
Weight 40 – 45 kg (approx.)
Dimensions (L×W×H) 590 × 370 × 510 mm (approx.)

Hyunald Electric Weld – Trusted Manufacturer & Supplier

Hyunald Electric Weld is a trusted name in the field of digital heavy-duty welding machines, offering innovative and reliable equipment to support professional welders across industries. The STRONG ARC / DC TIG 402 PA PULSE stands out as a rugged, high-precision, and feature-rich welding solution built for consistent industrial performance.


Hyunald Electric Weld
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