Created on 09.05

ES5 & PL5 Pulse MIG/MAG Welding Machine

MIG/MAG Welder Series

ES5/PL5 Series Pulse MIG/MAG Welding Machine: Premium Industrial Welding Solutions

1. Product Features and Specifications

The ES5 and PL5 series offer versatile welding solutions tailored for different industrial needs. The ES5 series is optimized for CO₂/MAG welding, while the PL5 series provides comprehensive capabilities including MAG Pulse, MIG Pulse, and MIG Double Pulse. Both series feature models ranging from 350A to 630A, all boasting a 100% duty cycle to ensure continuous, high-intensity operations.

2. Broad Applications

These welding machines are highly adaptable and suitable for welding various metals, including stainless steel, carbon steel, alloy steel, aluminum, and aluminum alloys. They are widely applied in steel structure construction, machined parts manufacturing, shipbuilding heavy industry, and the transportation sector. The robust design makes them particularly ideal for welding thick metal materials in demanding heavy industries.

3. Application Advantages in Welding Production

Adopting the ES5/PL5 series brings significant benefits to your production line:

Cost & Efficiency: Reduces welding wire and gas consumption, minimizes post-welding cleaning work, and decreases the required weld layers, thereby improving overall welding efficiency.
Process Management: Enhances quality in both semi-automatic and fully automatic welding. The operation mode supports the storage and recall of 100 different operation records, eliminating the need for manual parameter recording and saving valuable time.
Superior Weld Quality: Produces a beautiful weld surface with excellent joints, free from defects like cracks, incomplete fusion, and blowholes.
Advanced Arc Control: Features spatter-free pulse welding with no weld undercut. It offers fast arc dynamic adjustment, concentrated arc energy, enhanced penetration, and precise arc stability control that is maintained even when wire stickout changes.

4. Integrated Gas Shielded Welding (ES5 Series)

The NR-350ES5, NR-500ES5, and NR-630ES5 models deliver exceptional performance through integrated welding parameter management. Key features include:

Digital control technology for faster response and superior welding effects.
Compliance with national first-level energy efficiency standards.
100% duty cycle for long-time high-current welding.
Latest software control for automatic adaptation to various wire feeders.
Upgradability to welding MES equipment for convenient WPS data management, as well as compatibility with welding automation equipment, special machines, and robots.

5. Technical Parameters: ES5 Series

Input Voltage/Frequency: 3~380V±10% / 50/60HZ
Rated Input Power: 25 KVA (Gas Shielded) / 26 KVA (Manual)
No-load Voltage: 78V
Welding Current Range: 30-500A (Gas Shielded) / 20-500A (Manual)
Welding Voltage: 15.5-39V
Continuous Duty Cycle: 100% at 500A (40℃, 10min)
Efficiency: ≥85%
Insulation/Protection Class: H / IP23S
Applicable Wire Diameter: Solid carbon steel (1.0/1.2/1.6mm), Flux-cored carbon steel (1.0/1.2/1.6mm), Stainless steel (1.2/1.6mm)
Cooling Method: Air Cooling
Weight & Dimensions: 35kg / 626*280*570mm

6. Pulsed Gas Shielded Welding (PL5 Series)

The MIG-350PL5, MIG-500PL5, and MIG-630PL5 models excel in high-current pulse welding, delivering beautiful weld appearances and low spatter through high-precision frequency control. Highlights include:
Software-based pulse control for various welding processes.
Heavy-duty power supply supporting stable remote welding up to 50 meters.
Highly stable and reliable IGBT module design.
Stable MIG arc with regular droplet transfer and MAG welding with fine, non-sticking spatter to extend nozzle life.
Double pulse function for perfect fish-scale welds.
Generator compatibility for field construction and patented intelligent comprehensive power protection for ultimate durability.

7. Technical Parameters: PL5 Series

The PL5 series shares identical core technical parameters with the ES5 series, including Input Voltage (3~380V±10%), Rated Input Power (25/26 KVA), No-load Voltage (78V), Welding Current/Voltage ranges, 100% Duty Cycle at 500A, ≥85% Efficiency, H Insulation Class, IP23S Protection Class, applicable wire diameters, Air Cooling, and identical weight (35kg) and dimensions (626*280*570mm).

8. User-Friendly Operation & Robot Collaboration

Parameter adjustment is highly intuitive: simply press the knob to select parameters and rotate it to adjust values. Furthermore, both series can be seamlessly matched with welding robots to realize fully automatic and intelligent welding production.

9. Weld Inspection Results

Quality is guaranteed through rigorous testing:

Visual Inspection: Weld surfaces exhibit beautiful shapes and good joints, completely free from cracks, incomplete fusion, blowholes, and surface weld beads.
Ultrasonic Flaw Detection: Quality department testing confirms samples are defect-free and fully meet qualification requirements.