LYGL-350D Stirrup Cage Welding Machine Improves Accuracy and Efficiency for Precast Concrete Component Manufacturing

If you work in precast concrete production, you already know how much pressure there is to deliver structurally sound components on time and within budget. The stirrup cage welding machine LYGL-350D from Zhongji Luyuan addresses exactly that challenge. Designed for fully automatic, PLC-controlled operation, the LYGL-350D produces column stirrup cages, beam hoops, and construction reinforcement assemblies with consistent dimensional accuracy and firm weld quality. With a cage diameter range of 150–350 mm, support for main bar diameters from 10–20 mm, and a production output of 24 sections per 10-hour shift, this machine is built for demanding precast manufacturing environments.

Understanding the LYGL-350D Stirrup Cage Welding Machine

What This Machine Actually Does

Gas-shielded welding and PLC-driven motion control are both parts of the LYGL-350D, which is a fully robotic rebar cage-making system. It works with stirrup bars with diameters of φ6–12 mm and main bars with diameters of 10–20 mm. Each cage configuration can hold 3–6 main bars. Because the cage is made in a single continuous pass, each unit comes out of the machine with exact angles, square geometry, and no warping. This is very helpful when putting cages into forms on concrete production lines.

Key Technical Specifications

The power source for the machine is 380V, 50Hz, three-phase. It takes 14.5 KW of power and welds with 100 KW of power. It has a 16 m × 3 m area, and only one person is needed for the whole welding cycle. The longest cage that comes standard is 6 m, but other lengths can be made to order. The stirrup spacing can be set to ≥ 30 mm, and the main bar spacing must be at least 100 mm. The air source pressure must stay below 0.8 MPa for the arc to work properly.

Industries and Applications

If you work in precast concrete production, you already know how much pressure there is to deliver structurally sound components on time and within budget. The stirrup cage welding machine LYGL-350D from Zhongji Luyuan addresses exactly that challenge. Designed for fully automatic, PLC-controlled operation, the LYGL-350D produces column stirrup cages, beam hoops, and construction reinforcement assemblies with consistent dimensional accuracy and firm weld quality. With a cage diameter range of 150–350 mm, support for main bar diameters from 10–20 mm, and a production output of 24 sections per 10-hour shift, this machine is built for demanding precast manufacturing environments.

Advantages of the LYGL-350D Over Competitors

Welding Accuracy and Dimensional Consistency

Distortion—cages that aren't straight or have different pitch spacing—is one of the most common problems in the hand production of stirrup cages. This means that work has to be redone on the casting floor. The Stirrup cage welding machine LYGL-350D fixes this with a rotation and feed system that are controlled by a PLC and work together. The gas-protected welding method makes weld joints that have the same shear strength along the whole length of the cage. Each cage is made in a single pass.

Production Efficiency and Labor Reduction

That being said, here are the main performance benefits of this machine that make it stand out in high-volume concrete operations:

• Single-operator workflow: One technician monitors the full welding cycle from the touch screen interface, reducing the labor headcount needed for cage fabrication by a significant margin compared to manual or semi-automatic methods.
• Output rate: The machine completes 24 cage sections (each 6 m) per 10-hour shift, which translates to a sustained and predictable production rhythm for project scheduling.
• Cage quality per pass: Because the cage is formed in a single continuous cycle, there are no secondary correction steps. The finished cage is square, free from torsional deformation, and ready for immediate installation.

These performance traits directly lower the cost of labor per unit and shorten the time it takes to make something, which are both very important when project deadlines are set.

Energy and Cost Efficiency

The machine has a high power-to-output ratio, with a rated power of 14.5 KW and an output of 100 KW for welding. It also makes cleaner weld beads with less spatter than open-arc methods, which cuts down on the time needed to clean up after the weld and the amount of consumables that need to be thrown away. When procurement teams look at long-term return on investment (ROI), these practical savings add up over the course of several years of a project.

Maintenance, Troubleshooting, and Safety Guidelines

Routine Maintenance Schedule

In a work setting, the best way to protect machine uptime is to do regular maintenance. The high-strength steel frame of the LYGL-350D is made to last in heavy industrial use, but the welding contact tips, wire feed liners, and moving parts need to be checked and fixed on a regular basis to keep the machine running smoothly. Every shift, operators should check the contact tips, lubricate the drive parts once a week, and replace the wire feed liners at the manufacturer's recommended times.

Diagnostic and Troubleshooting Features

The PLC and touch screen interface show working factors like feed speed, welding current, and cycle state in real time. When something goes wrong, the system sends out an error code that tells the operator which subsystem is at fault. This cuts down on the time needed to diagnose problems by a large amount and lets a single operator fix most problems without having to wait for outside expert help.

Operator Safety and Compliance

Standard arc welding safety features are built into the machine, such as shielded welding zones and access panels that lock together. The air source pressure is limited to 0.8 MPa to keep the pneumatic system from getting too pressurized. Zhongji Luyuan makes sure that all of its equipment meets international safety standards. Before they are shipped, all of them are put through a load test to make sure that the electrical, mechanical, and gas systems will work properly.

Procurement Guidance for LYGL-350D Buyers

How to Purchase

The Stirrup cage welding machine LYGL-350D is sold all over the world by Zhongji Luyuan, which was formed in 2016 with 50 million yuan in legal capital. On the official website, zjly2025.aixdb.Buyers can get straight quotes, place large orders, or set up equipment demos. They can also email the sales team at sales2@shandongluyuan.com. The business has sent goods to South Korea, Malaysia, Thailand, Kazakhstan, Israel, South Africa, and more than 100 other countries and regions.

Customization and Configuration

The LYGL-350D can be configured to have different cage lengths and bar counts to meet the needs of each project. The standard cage length is 6 m. Between 3 and 6 main bars can be used, and the shape of the stirrups can be changed to make them triangular, rectangular, or a special shape. Before making an order, buyers with non-standard project needs should talk to the expert team directly to talk about configuration choices.

After-Sales Support and Warranty

As part of its after-sales service, Zhongji Luyuan offers help with installation, training for operators, and ongoing professional support. The fact that the company works with China Railroad, China Railroad Construction, China State Construction, China Communications Construction, and China Nuclear Power Construction Corporation shows that it can handle big, difficult projects. Customers can expect quick service and the ability to get spare parts through the business's support network.

Why LYGL-350D Is a Trusted Choice for B2B Procurement

The reputation of Zhongji Luyuan is based on its consistent use of technology and useful engineering results. High-speed train systems, highway bridges, metro systems, tunnels, underground pipe galleries, and nuclear power projects all use the company's products. The LYGL-350D's dependability in those conditions comes from years of careful R&D and production. If purchasing managers are looking for a stirrup cage welding machine source with a track record in large building projects, Zhongji Luyuan's record is a good place to start for a long-term relationship with equipment.

Conclusion

The Stirrup cage welding machine LYGL-350D solves real production issues in the precast concrete industry, including inconsistent cage geometry, a high need for manual labor, and slow output rates. It makes contractors and rebar processing centers more efficient through fully automatic PLC operation, gas-protected welding, single-operator control, and a steady output of 24 sections per 10-hour shift. Zhongji Luyuan has experience with big infrastructure projects, and its global service network makes it a reliable partner for buyers who need equipment that works well, is accurate, and has reliable help after the sale.

FAQ

1. What is the LYGL-350D's daily production capacity?

The machine produces 24 cage sections of 6 m each within a 10-hour operating shift. This output rate supports high-volume precast schedules without requiring multiple machines or additional operators.

2. How many operators does the LYGL-350D require?

One operator manages the complete welding cycle from the PLC touch screen interface. The fully automatic control system handles cage rotation, bar feed, and welding sequence without manual intervention.

3. Can the LYGL-350D handle different stirrup shapes?

Yes. The machine supports triangular, rectangular, and special-shaped stirrup configurations. Cage parameters, including bar count, bar diameter, stirrup spacing, and cage length, are adjustable through the control interface.

4. What welding method does the machine use?

The LYGL-350D uses gas-shielded welding, which produces clean, consistent weld joints with minimal spatter. This welding method maintains bond integrity across the full cage length.

5. Is after-sales support available for international buyers?

Zhongji Luyuan provides installation support, operator training, and technical assistance for international customers. The company has active export relationships across nearly 100 countries and regions.

Request a Quote for the LYGL-350D Stirrup Cage Welding Machine

You can directly ask Zhongji Luyuan about their Stirrup cage welding machine LYGL-350D for sale right now. We have an expert team ready to help you, whether you are looking to expand a precast company, cut down on labor costs on a big infrastructure project, or look into automatic cage fabrication systems for the first time. You can get a quote or set up a product demonstration by emailing sales2@shandongluyuan.com.

References

1. American Concrete Institute. ACI 318-19: Building Code Requirements for Structural Concrete. ACI, 2019.

2. Precast/Prestressed Concrete Institute. PCI Design Handbook: Precast and Prestressed Concrete. 8th ed., PCI, 2017.

3. International Federation for Structural Concrete (fib). fib Model Code for Concrete Structures 2010. Ernst & Sohn, 2013.

4. Construction Industry Institute. Automation and Robotics in Construction: Trends and Productivity Impacts. CII Research Report, 2020.

5. ASTM International. ASTM A706/A706M: Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement. ASTM, 2022.

6. McKinsey Global Institute. Reinventing Construction: A Route to Higher Productivity. McKinsey & Company, 2017.