MZ-1250F Suspended submerged arc welding machine (industrial universal type)
The MZ-1250F Suspended Submerged Arc Welding Machine delivers stable, efficient, and precise subarc welding for heavy-duty industrial applications.
Stable Power Control: SCR power source ensures consistent arc and smooth submerged arc welding.
Suspended Design: Flexible welding head positioning for large workpieces.
Accurate Control: MK6G controller regulates voltage, current, and wire feed.
Efficient Wire Feeding: YT feeder supports 3.2–5.0 mm wire for steady delivery.
Wide Applications: Ideal sub arc welder for shipbuilding, pipelines, and steel structures.
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Place of Origin: |
CHINA |
Brand Name: |
ZG |
Model Number: |
MZ-1250F |
Certification: |
CCC |
Minimum Order Quantity: |
1SET |
Packaging Details: |
STANDARD PACKING |
Description:

This welding system is composed of an MZ-F series submerged arc welding power source, an MK6G controller, and a YT wire feeding head (available in left or right configurations),making it ideal for heavy-duty welding operations in industries such as shipbuilding, steel structures, pipelines, and heavy machinery manufacturing. It is a highly efficient automatic submerged arc welding machine designed for industrial applications that require precision, stability, and reliability.
The power source adopts a silicon-controlled rectifier (SCR) technology, which provides rapid automatic compensation for fluctuations in the power supply network. This ensures arc stability and allows for convenient adjustment of the output current, making the welding process smoother and more reliable. The system is particularly suitable for welding large metal structures, pipelines, and heavy-duty industrial components where deep penetration and strong weld seams are required.
One of the key advantages of this system is its suspended design, which enables greater flexibility and adaptability in various industrial settings. The welding head can be positioned precisely to accommodate different workpiece sizes and orientations, allowing for high-quality welds with minimal manual intervention. This feature also helps in reducing operator fatigue and increasing productivity in large-scale welding operations.
The MK6G controller plays a crucial role in regulating welding parameters, ensuring precise control over voltage, current, and wire feeding speed. This level of control enhances weld consistency and reduces defects, making the system ideal for applications requiring high-strength, durable welds.
The YT wire feeding mechanism ensures smooth and stable wire delivery, minimizing interruptions and enhancing overall welding efficiency. Whether used in heavy machinery, shipbuilding, steel structure manufacturing, or other industrial fields, this system provides a robust and dependable solution for submerged arc welding needs.
In conclusion, the Suspended Submerged Arc Welding Machine (Industrial Universal Type) is a high-performance, automated welding system that integrates advanced power control, efficient wire feeding, and precise welding regulation. Its ability to compensate for power fluctuations, maintain arc stability, and adapt to various work environments makes it an essential tool for industries requiring high-quality submerged arc welding.
Specifications:
1.1.1 MK6G Submerged Arc Welding Controller
Name |
Parameter |
Wire Feeder Motor |
200W |
Enclosure Protection Level |
IP21 |
Maximum Operating Temperature |
45℃ |
Wire Feeder Motor Excitation Voltage |
110VDC |
Wire Feeder Motor Voltage |
10~110VDC |
Input Power Supply |
120V, 27V, 50/60Hz |
1.1.2 YT Wire Feeder
Name |
Parameter |
Power |
165W |
Rated Speed |
20 rpm |
Wire Diameter |
Φ2.4-φ6mm |
Mounting Dimensions |
4-M10 screw holes, spacing 110×25 |
Maximum Motor Current |
≤2A |
Maximum Wire Feeding Speed |
3m/min |
Motor Rated Voltage |
110V DC |
Rated Welding Current |
1600A 60% |
Dimensions (mm) |
278×154×188 |
Weight (excluding wire and flux) |
11KG |
1.1.3 MZ-F Series Submerged Arc Welding Power Source
Name |
Unit |
MZ-1000F |
MZ-1250F |
Frequency |
Hz |
50 |
50 |
Weight |
KG |
320 |
330 |
Output Current Range |
A |
200-1000 |
250-1250 |
Rated Welding Voltage |
V |
44 |
44 |
Input Cable Specification |
mm² |
16 |
25 |
Rated Input Power Capacity |
KVA |
64 |
80 |
Rated Input Current |
A |
97 |
121 |
Rated Welding Current |
A |
1000 |
1250 |
Power Supply Input Voltage |
V |
AC3×380 |
AC3×380 |
Air Switch Capacity |
A/V |
160/380 |
160/380 |
Rated Duty Cycle |
% |
100 |
60 |
Working Voltage Output Range |
V |
28-44 |
30-44 |
Dimensions (W×H×L) |
mm³ |
566×699×1022 |
566×699×1022 |
Competitive Advantages
Compared to traditional welding methods, this suspended submerged arc welding system offers:
1. Higher efficiency – Automated operation reduces manual workload.
2. Superior weld quality – Consistent arc stability and precise parameter control.
3. Cost savings – Reduced material waste and improved productivity.
4. Versatile adaptability – Suitable for large-scale industrial applications with varying workpiece sizes.
This system is the ideal solution for industries requiring high-quality submerged arc welding with enhanced efficiency and precision.
Key Features
Ⅰ. Advanced Power Control

1. The SCR-controlled power source provides automatic compensation for voltage fluctuations, ensuring stable arcs and consistent welding quality.
2. Allows precise adjustment of output current, improving weld reliability and reducing defects.
Ⅱ. Suspended Design for Maximum Flexibility
1. Enables easy positioning of the welding head to accommodate various workpiece sizes and orientations.
2. Reduces operator fatigue and enhances productivity in large-scale welding operations.
Ⅲ. MK6G Controller for Precision Welding

1. Regulates voltage, current, and wire feeding speed, ensuring uniform weld quality.
2. Enhances weld consistency and minimizes defects, making it ideal for high-strength applications.
Ⅳ. High-Performance YT Wire Feeder

1. Supports 3.2mm to 5.0mm wire diameters, enabling versatile welding capabilities.
2. Equipped with a square box gear reducer and V-groove wire feeding wheel for smooth and powerful wire delivery.
3. Features excellent electrical insulation and adjustable wire pressing force, optimizing performance for various welding conditions.
Applications:
1. Shipbuilding & Offshore Structures - Provides deep penetration and strong welds for marine environments.
2. Steel Structure & Heavy Machinery - Ensures high-strength, defect-free welds for industrial components.
3. Pipeline & Pressure Vessel Welding - Delivers stable, high-quality welds for critical infrastructure.