MWA-400 Welding Control Power Supply
Product Type: Integrated Control Systems
The MWA-400 is a high-performance intelligent integrated welding control power supply, acting as the core for orbital welding systems. It enables precise, automated welding for pipes (Φ19–325mm, wall thickness 3–10mm) in energy, oil & gas, and heavy industries.
Product Features:
Smart HMI & Expert Database for Auto Parameter Generation
Single-Sided Welding with Double-Sided Forming + 4-Channel Argon Gas Protection
Seamless Integration with MWG Series Welding Heads + Modular German Core Components
Overview
The MWA-400 is a high-performance intelligent integrated welding control power supply, the core of automated orbital welding systems, enabling precise, efficient welding for medium-to-large diameter pipes in critical industries.
With advanced digital control and modular design, it ensures stable, repeatable weld quality while simplifying complex workflows, reliable for demanding industrial use.
Smart HMI + expert database for auto parameter optimization
Single-sided welding with double-sided forming + 4-channel argon protection
Integrates with MWG series heads + robust German core components
Specification
Product Name
Model
Welding Control Power Supply
MWA-400
Input Power
Three-phase + ground wire, AC380V±10% 50/60Hz
Duty Cycle
60% at 400A
Welding Current Range
4 - 400A
Protection Functions
Overvoltage, overcurrent, leakage
Dimensions L×W×H (mm)
768×470×906
Weight
120KG
Benefits & Features
01
High Welding Precision
The MWA-400 enables automated and precise welding parameter management, ensuring consistent weld quality with minimal deviations — critical for industries like energy and heavy manufacturing.
02
Comprehensive Safety Protections
Equipped with multiple protections (overvoltage, overcurrent, leakage, etc.), it prevents equipment damage and safety hazards during operation, ensuring stable, reliable welding processes.
03
Wide Current Range & Efficiency
With a 4-400A welding current range and 60% duty cycle at 400A, it adapts to diverse pipe sizes (Φ19–325mm) and boosts productivity in large-scale welding tasks.
04
Robust & Versatile Design
Its modular German components and compatibility with MWG series welding heads make it durable and suitable for energy, oil & gas, and heavy industry applications, meeting ASME/ISO standards.
Application
The MWA-400 intelligent integrated welding control power supply serves industries needing high-precision, large-scale orbital welding, leveraging robust power and smart control for diverse heavy-duty scenarios.
Energy Sector
Oil & Gas Industry
Heavy Manufacturing
FREQUENTLY ASKED QUSTIONS
Frequently Asked Questions about MWA-400
Get answers to common questions about the MWA-400 intelligent welding power supply, covering technical specifications, application scenarios, safety features, and compatibility with orbital welding systems.

Welding Engineer
What industries is the MWA-400 suitable for?
The MWA-400 excels in sectors needing large-scale, high-precision orbital welding, such as energy (power plant pipelines), oil & gas (onshore/offshore pipes), and heavy manufacturing (pressure vessels).
How does the MWA-400 ensure welding safety?
Can the MWA-400 handle different pipe sizes?
Yes, it supports pipes from Φ19–325 mm (wall thickness 3–10 mm) via its 4–400A current range and seamless integration with MWG series welding heads.
















