Created on 06.17

WSM-500 IGBT DC Pulse TIG Inverter Welder | Digital Industrial TIG MMA Welding Machine

TIG Welder Product Series

1. Product Overview

The WSM-500 heavy-duty industrial IGBT inverter DC pulse TIG welder adopts a full digital MCU intelligent control system, integrating High Frequency TIG, Lift TIG pulsed argon arc welding, and MMA stick welding functions. It also supports carbon arc gouging to meet diversified industrial metal processing demands.
The machine is equipped with a visualized operation panel with waveform diagram for intuitive parameter setting. It has Storage & Recall functions to save and call custom welding programs, independent switching for air cooling/water cooling mode, Gas Check argon test function, as well as real-time Power and Alarm status display. Multiple trigger modes including 2-Step, 4-Step, Spot Welding and Repeat cycle are built-in, with independent adjustment of Hot Start, Welding Current and Arc Force for flexible manual and batch production welding work.

2. Core Product Advantages

High Power IGBT Inverter Core, Energy Efficient & Stable

Equipped with high-power IGBT power modules, the welder delivers stable output, high working efficiency, and outstanding long-term reliability. Its compact and lightweight design abandons the bulky structure of traditional industrial welders, making it easy for workshop transfer and mobile operation. It complies with Grade 1 energy efficiency standard GB 28736-2019, with a power factor up to 0.94 and an efficiency of ≥88%.

Full Digital Precise Pulse Parameter Adjustment

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

Multi Welding Modes & Flexible Trigger Logic

Four core welding processes are available: HF High Frequency TIG, Lift scratch-start TIG, Pulsed TIG and MMA stick welding. Built-in 2-Step/4-Step trigger logic, Spot Welding and Repeat cycle functions adapt to short spot welding, long continuous welding and cyclic production. Independent Hot Start and Arc Force adjustment raises the arc striking success rate to 100% for smooth MMA welding performance.

Optional Water Cooling Trolley System for Non-Stop Production

Matched water cooling tank and integrated trolley are optional to support long-time continuous heavy load welding. The all-in-one trolley combines welding main unit, cooling water tank and gas cylinder mounting bracket for convenient mobile field operation. Standard air cooling version is also available for light-duty daily welding tasks.

Water cooling tank: 5L capacity, 370W pump power, 8L/min water flow; supporting trolley size 1170×445×1170mm with net weight 22.1kg.

Multi-Layer Intelligent Safety Protection & Low Interference

Patented protection circuit prevents overvoltage, undervoltage and phase loss damage caused by unstable industrial power grid. Low high-frequency interference design avoids signal disturbance to surrounding equipment and automatic welding robots. The Gas Check function allows argon gas inspection before welding to eliminate oxidation welding defects.

Wireless Remote Control & Robot Intelligent Compatibility

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

Strong Heavy-Duty Continuous Loading Capacity

Under 40℃ ambient temperature, the welder supports 500A output at 60% duty cycle, stable 100% continuous welding under 400A current, capable of long-hour heavy industrial production such as pressure vessels, marine hardware and thick plate alloy welding.

3. Supported 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

The WSM-500 industrial pulse TIG welder is widely used for precision and conventional welding of multiple metal materials: stainless steel, carbon steel, alloy steel, pure copper, copper alloy, titanium and titanium alloy.
Typical application scenarios: pressure vessel manufacturing, heavy machinery processing, automotive parts, marine engineering hardware, pipeline fabrication, automatic robot welding production lines and metal handicraft precision welding.

5. Complete Technical Specifications

Main Welding Machine Parameters

Item	Specification
Input Voltage / Frequency	3-Phase 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)	500A 60% / 400A 100%
Welding Current Adjustment Range	5–500A
Power Factor	0.94
Efficiency	≥88%
Insulation Class	H
Protection Class	IP21S
Net Weight of Main Unit	37kg
Overall Dimension	645×325×595mm

Adjustable Welding Process 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	Cooling Tank Parameter	Trolley Parameter
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	/
Dimensions	670×240×300mm	1170×445×1170mm
Net Weight	17kg	22.1kg