Created on 06.15

WSM-400 IGBT DC Pulse TIG Inverter Welder | Digital Precision TIG MMA Welding Machine

TIG Welder Product Series

1. Product Overview

The WSM-400 is a heavy-duty IGBT inverter DC pulse TIG welder built for industrial precision welding. Adopting full digital MCU intelligent control system, this machine integrates High Frequency TIG, Lift TIG pulsed argon arc welding and MMA stick welding functions, compatible with carbon arc gouging to meet multi-scenario metal processing demands.
The control panel features an intuitive waveform diagram with all core adjustable parameters: pulse frequency, duty cycle, slope up/down time, hot start, arc force, spot welding and 2-step/4-step trigger modes. It supports storage & recall of custom welding programs, gas inspection, water/air cooling switch, and real-time power & alarm indication for convenient operation.

2. Core Product Features

High Power IGBT Inverter Core

Equipped with high-power IGBT modules, stable output, high working efficiency and outstanding reliability. Compact lightweight structure breaks the bulkiness of traditional industrial welders, easy for workshop transfer and mobile operation. It meets Grade 1 energy efficiency standard GB 28736-2019 with energy-saving performance, machine efficiency reaches ≥88%, power factor up to 0.94.

Full Digital Precise Parameter Regulation

Full MCU digital control enables independent fine-tuning of pre-gas, arc starting current, ramp-up time, peak/base pulse current, pulse frequency (0.1–999Hz), duty cycle (5%–95%), slope-down crater current and post-gas time. High-speed pulse waveform output delivers stiff concentrated arc, narrow heat-affected zone and uniform fish-scale weld beads, perfect for ultra-thin sheet precision welding.

Multi Welding Modes & Flexible Trigger Logic

Supports 3 core welding processes: HF High Frequency TIG, Lift TIG scratch arc welding, MMA stick welding. Built-in 2-Step, 4-Step, Spot Welding and Repeat cycle modes to match manual short weld, continuous production and spot forming workpieces. Independent Hot Start and Arc Force adjustment optimize arc ignition success rate to 100% for smooth MMA welding.

Optional Water Cooling & Mobile Integrated Design

Optional matched water cooling tank enables long-duration continuous welding. Integrated trolley design combines main power source, cooling water tank and gas cylinder bracket for flexible mobile site work. Air cooling standard version is also available for light-load daily operation.

Intelligent Safety Protection & Anti-interference

Patented multi-protection circuit against overvoltage, undervoltage and phase loss, effectively avoid machine damage from unstable industrial power grid. Low high-frequency interference design will not disrupt peripheral equipment and welding robots. Equipped with Gas Check function to test argon supply before welding to prevent oxidation defects.

Wireless Remote & Robot Compatibility

Adopts communication-band wireless remote control technology; full-function wireless remote box supports long-distance parameter adjustment without approaching the machine. Compatible with mainstream brand welding robots, supporting analog IO and RS485 communication interface. Can be upgraded to IoT intelligent welder for remote group equipment monitoring and management.

Strong Continuous Loading Capacity

40℃ working environment, 400A output at 60% duty cycle, stable 100% continuous welding under 310A current, capable of long-hour heavy industrial production.

3. Available Welding Functions

HF High Frequency TIG Welding
Lift TIG Scratch Start Argon Arc Welding
Pulsed TIG Precision Welding
MMA Stick Manual Metal Arc Welding
Spot Welding / Repeat Cycle Welding
Carbon Arc Gouging

4. Wide Application Range

This WSM-400 industrial pulse TIG welder fits precision and general welding of multiple metal materials:
Stainless steel, carbon steel, alloy steel, pure copper, copper alloy, titanium & titanium alloy.
Widely used in pressure vessel, machinery manufacturing, automotive parts, marine hardware, pipeline processing, robot automatic welding production lines and metal handicraft processing.

5. Complete Technical Parameters

Main Welder Parameters

Item	Specification
Input Voltage / Frequency	3~380V±10% / 50/60Hz
Rated Input Power	TIG:13kVA; MMA:17kVA
Rated Input Current	TIG:20A; MMA:26.2A
No-load Voltage	72V
Duty Cycle (40℃/10min)	400A 60% / 310A 100%
Welding Current Range	5–400A
Power Factor	0.94
Efficiency	≥88%
Insulation Class	H
Protection Class	IP21S
Net Weight	37kg
Overall Dimension	645×325×595mm

Adjustable Welding Parameters

Pre Gas Time: 0–10s; Post Gas Time: 0–30s
Ramp Up / Ramp Down Time: 0–10s
Pulse Frequency: 0.1–999Hz
Duty Cycle: 5%–95%

Matching Water Cooling Tank & Trolley Specs

Item	Specification
Input Voltage	AC 380V 3-Phase
Frequency	50/60Hz
Input Current	0.6–0.75A
Max Water Capacity	5L
Water Flow Rate	8L/min
Lift Head	35m
Input Power	370W
Tank Dimension	670×240×300mm
Tank Weight	17kg