Created on 09.17

NBC-630R Soft-Switch MMA Welding Machine

ARC Stick Welder

Product Model: NBC-630R
Welding Machine Name: Soft-Switch MMA Welding Machine
Core Selling Point: Built with IGBT module soft-switch technology, this multi-functional machine is ideal for heavy industrial welding in steel structures, shipyards, and similar scenarios.

Soft-switch IGBT module with high open-circuit voltage for easy arc striking.
Full-duct high-speed fan for enhanced heat dissipation.
Adjustable welding current and arc force current independently.
Thickened metal casing, durable for harsh working environments.
Supports vertical, flat, fillet, and overhead welding with all-round capability.
High-speed air duct design allows long-time operation without overheating, suitable for high-load industrial welding.

Parameter	NBC-630R
Input Power Voltage	380V
Input Rated Capacity	34.6KVA
No-Load Voltage	70V-80V
Output No-Load Voltage	17V-50V
Output Current Range	60A-630A
Insulation Grade	F
IP Rating	IP21S
Rated Duty Cycle	60%
Weight	41KG
Dimensions	630316620mm
Applicable Electrode Size	Φ2.5 – Φ5.0
Welding Wire Range	Φ0.8 – Φ1.6
Other Functions	Portable, Air-Cooled, 3 Phase, DC Output, Temperature Control

Input Power Cable: 6mm²
Output Cable Specification: 50mm²
Power Distribution Switch: 60A
Ambient Temperature: -10℃ ~ +40℃
Usage Notice: Must connect the ground wire and power cable correctly before use.

One machine can perform multiple welding operations, suitable for welding various materials. It supports vertical, flat, fillet, and overhead welding.