3-in-1 H Beam Production Line for Assembly, Welding and Straightening
Minghua’s 3-in-1 H beam production line integrates beam assembly, submerged arc welding and flange straightening into one continuous system. Available in LMZ-1500 and LMZ-1800 models, the machine processes H and T beams with web heights up to 1,800 mm, flange widths up to 800 mm and workpiece lengths from 4 to 15 m.
Accurate Centering: Three sets of web and flange centering mechanisms help maintain alignment during assembly.
Hydraulic Clamping: Mechanical positioning and hydraulic clamping provide fast, stable workpiece fixation.
Adjustable Conveying: Frequency-controlled drive rollers offer stepless speed adjustment for different welding requirements.
Automatic Tack Welding: Dual tack-welding mechanisms secure the assembled beam before submerged arc welding.
Compact Hydraulic System: The integrated valve system simplifies the hydraulic structure and supports convenient maintenance.
Integrated Production: Assembly, welding and straightening are completed within one coordinated production system.
| Product model | LMZ-1500 | LMZ-1800 | ||
| Input power supply | AC 3-phase 380V 50Hz | |||
| Input power capacity | 158KVA | 162KVA | ||
| Steel specifications | Web plate height | 200-1500mm | 200-1800mm | |
| Web plate thickness | 6-32mm | 6-32mm | ||
| Wing width | 200-600mm | 200-800mm | ||
| Wing plate thickness | 6-40mm | 6-40mm | ||
| Variable cross-sectional slope | ≤ 15 ° equal slope | |||
| Height difference of abdominal plate | ≤600mm | |||
| Workpiece aspect ratio | Web height/wing width ≥ 1.2 | |||
| Workpiece length | 4-15m | |||
| Track gauge | 4000mm | 5500mm | ||
| Rail length | 18m (track to be provided by the user) | |||
| welding speed | 0.3-1.2m/min (depending on welding process, stepless speed regulation) | |||
| Maximum walking speed | 2.5m/min | |||
| Welding wire disc capacity | 100KG×2 | |||
| Capacity of flux recycling machine | 50L×2 | |||
| welding silk | φ3-φ5mm | |||
| Equipped with welding power supply | Two sets of ZD7-1250 submerged arc welding power sources or two sets of controllable silicon welding machines for welding research and Weida inverter | |||
| External dimensions of the host | 2.8×4.8×3.4m | 3.3×6.5×3.7m | ||
The production line can be configured with a suitable submerged arc welding power source according to the welding procedure and required output.
The 3-in-1 H beam production line combines beam assembly, tack welding, submerged arc welding and flange straightening in one continuous process.
Plate Loading
The web plate and flange plates are placed on the roller conveyor.
Centering and Clamping
Hydraulic and mechanical systems align the web and flange plates accurately.
Assembly and Tack Welding
The plates are assembled into an H- or T-shaped structure and secured by automatic tack welding.
Submerged Arc Welding
The H beam welding machine completes continuous seam welding at an adjustable conveying speed.
Flange Straightening
The straightening unit corrects flange deformation caused by welding heat.
Finished Beam Discharge
The completed H or T beam is transferred to the output conveyor for inspection and handling.
| Model | Suitable For | Maximum Web Height | Maximum Flange Width |
| LMZ-1500 | Standard structural H beam production | 1,500 mm | 600 mm |
| LMZ-1800 | Larger structural beams and heavier fabrication | 1,800 mm | 800 mm |
Choose the model according to the largest workpiece rather than the average workpiece size, while also considering workshop space, power supply and production volume.
| Comparison | 3-in-1 Machine | Conventional Line |
| Equipment Configuration | Integrated workstation | Separate assembly, welding and straightening machines |
| Workpiece Transfer | Reduced | Multiple transfers |
| Floor Space | More compact | Larger line layout |
| Operator Coordination | Simpler | Multiple stations |
| Suitable Production | Light to medium H/T beams* | Broader configurations depending on line design |
| Initial Configuration | Integrated | Multiple machines and conveyors |
Steel structure factories
- Industrial building frames
- Bridge steel structures
- Warehouse columns and beams
- Heavy machinery frames
- H beam and T beam fabrication
For other automated manufacturing applications, explore Minghua’s automatic welding production lines designed for different workpieces, welding processes and production requirements.
What is an H beam production line?
An H beam production line is an integrated system used to assemble, tack weld, submerged arc weld and straighten welded H-shaped or T-shaped steel sections.
What processes can this H beam welding machine complete?
The machine combines plate centering, hydraulic clamping, H beam assembly, automatic tack welding, submerged arc welding, flange straightening and finished-beam conveying.
Can the production line manufacture both H beams and T beams?
Yes. The equipment is designed for the assembly and welding of both H-shaped and T-shaped steel sections within the specified dimensional range.
What is the difference between LMZ-1500 and LMZ-1800?
The LMZ-1500 supports web heights up to 1,500 mm and flange widths up to 600 mm. The LMZ-1800 supports web heights up to 1,800 mm and flange widths up to 800 mm.
What welding process does the machine use?
The main seam welding process uses submerged arc welding. Automatic tack welding is performed before continuous welding to maintain the assembled beam shape.
How do I choose the right H beam production line?
Selection should be based on maximum web height, flange width, plate thickness, beam length, welding process, production capacity and available workshop space.
Can the H beam welding line be customized?
The production line configuration can be adjusted according to beam dimensions, roller conveyor length, power supply, welding equipment and material-handling requirements.
