NBM Digital Inverter Pulse Welding Machine (water-cooling )
Morrow Welding proudly introduces the NBM series digital inverter pulse welding machine, which is specially developed for aluminum and aluminum alloy welding. As a professional Welding Machine for Aluminum, the NBM series combines advanced digital control technology, pulse welding technology, and efficient water cooling technology to provide stable and high-quality welding performance.
The NBM series is designed for industries that require high welding quality, such as automotive, aerospace, transportation, construction, and aluminum fabrication. It provides excellent control during welding and helps operators achieve smooth weld appearance with less post-welding cleaning.
With over 31 years of experience in welding technology and more than 100 patented technologies, Morrow Welding continues to develop advanced welding solutions for customers around the world.
Main Features of NBM Welding Machine for Aluminum
1. Advanced Digital Inverter Technology
The NBM Welding Machine for Aluminum uses advanced digital inverter technology to achieve accurate control of welding parameters.
The digital control system helps maintain stable arc performance during welding. It improves welding consistency and reduces the influence of voltage changes during operation.
The lightweight inverter design also makes the machine easier to move and operate in different working environments.
2. Single Pulse and Double Pulse Welding Function
The NBM series supports both single pulse and double pulse welding modes.
The double pulse function provides better control of heat input. It helps reduce deformation during aluminum welding, especially when welding thin aluminum plates.
The pulse welding process provides:
- Stable arc performance
- Lower heat input
- Less welding spatter
- Better weld appearance
- Reduced post-welding cleaning work
This makes the NBM series an ideal Welding Machine for Aluminum applications that require high welding quality.
3. Water Cooling System for Better Cooling Performance
Different from standard air-cooled welding machines, the NBM series uses a water cooling system for the welding torch.
The water cooling system provides better cooling efficiency and helps maintain stable torch temperature during long-time welding.
The advantages include:
- Better cooling effect
- Suitable for high-current welding
- Longer torch service life
- More comfortable operation for welders
- Better performance during continuous welding
The water cooling design makes this Welding Machine for Aluminum more suitable for industrial production environments.
4. Special Design for Aluminum and Aluminum Alloy Welding
Aluminum welding requires stable arc control and accurate heat management.
The NBM series provides optimized welding settings for:
- Aluminum wire
- AlSi wire
- AlMg wire
The machine supports wire diameter from:
Φ1.0mm to Φ1.6mm
It provides stable arc performance, deep penetration, and strong weld joints.
The NBM Welding Machine for Aluminum is suitable for welding aluminum parts that require high strength and good appearance.
5. New Black Industrial Design and Customized Appearance
The NBM series adopts a modern black industrial design.
The new appearance provides:
- Professional industrial style
- Better visual recognition
- Stronger product image
Morrow Welding also supports customized appearance according to customer requirements.
Customers can customize:
- Machine color
- Logo
- Panel design
- Product appearance details
This helps distributors and industrial users create products that match their own market needs.
Reliable Performance for Industrial Welding
The NBM Welding Machine for Aluminum provides stable output performance for different industrial applications.
Main advantages:
- 100% rated duty cycle
- High efficiency up to 85%
- Power factor 0.95
- Stable arc control
- Water cooling torch system
- Digital parameter adjustment
- Suitable for aluminum and aluminum alloy welding
The machine is designed for customers who need continuous welding operation and stable welding quality.


Technical Parameters
| Model | NBM-350 | NBM-500 | NBM-630 |
| Input Power Source | 3-phase 380V 50/60Hz | 3-phase 380V 50/60Hz | 3-phase 380V 50/60Hz |
| Rated Input Current | 20.7A | 35A | 52A |
| Rated Input Capacity | 13.6KVA | 23KVA | 34.2KVA |
| Rated Welding Current/Voltage | 350A/31.5V | 500A/39V | 630A/44V |
| Rated Duty Cycle | 100% | 100% | 100% |
| No-load Voltage | 63V | 77V | 82V |
| Welding Current Range | 40-350A | 40-500A | 50-630A |
| Efficiency | 85% | 85% | 85% |
| Power Factor | 0.95 | 0.95 | 0.95 |
| Suitable Wire | Φ1.0-Φ1.6mm Al, AlSi, AlMg wire | ||
| Wire Feeder Model | C-501B | ||
| Torch Cable Length | 3m | ||
| Torch Cooling Method | Water Cooling | ||
| Protection Class | IP23S | ||
| Insulation Class | F |












