LYGL-350D Reinforcement Cage Welder: Automatic Solution for Special-Shaped Stirrup Steel Cages

The LYGL-350D is a dedicated automatic welding and forming equipment for special-shaped stirrup steel cages, integrating advanced mechanical transmission, numerical control and gas shielded welding technologies. It thoroughly solves the pain points of manual binding, such as low efficiency, inconsistent stirrup spacing, unstable binding firmness and high labor intensity. The equipment supports flexible customization of key parameters, with a minimum main bar spacing of 100mm and customizable maximum spacing according to customer drawings, which can fully adapt to the processing needs of various special-shaped precast concrete components. It is widely used in precast component factories, bridge construction, high-speed railway subgrade engineering and other fields, especially suitable for projects requiring triangular, rectangular and other special-shaped stirrup steel cages.


Product Details

The steel cage forming machine is a core mechanical equipment for manufacturing steel cages in precast concrete members, which directly affects the structural strength and quality stability of precast components such as piles, wallboards and beams. This operation procedure is formulated based on industry standards and equipment characteristics, aiming to guide operators to correctly and safely operate the equipment, maximize work efficiency, and ensure that the produced steel cages fully comply with the requirements of the *Code for Construction Quality Acceptance of Concrete Structure Engineering* (GB50204). As a professional manufacturer with 10 years of experience in steel bar processing equipment, our independently developed LYGL-350D Reinforcement Cage Welder has become a preferred equipment for special-shaped stirrup steel cage processing, perfectly replacing traditional manual binding and leading the automation upgrade of the industry.

Stirrup Steel Cages

Product Overview of LYGL-350D Reinforcement Cage Welder

The LYGL-350D is a dedicated automatic welding and forming equipment for special-shaped stirrup steel cages, integrating advanced mechanical transmission, numerical control and gas shielded welding technologies. It thoroughly solves the pain points of manual binding, such as low efficiency, inconsistent stirrup spacing, unstable binding firmness and high labor intensity. The equipment supports flexible customization of key parameters, with a minimum main bar spacing of 100mm and customizable maximum spacing according to customer drawings, which can fully adapt to the processing needs of various special-shaped precast concrete components. It is widely used in precast component factories, bridge construction, high-speed railway subgrade engineering and other fields, especially suitable for projects requiring triangular, rectangular and other special-shaped stirrup steel cages.

Detailed Parameter Interpretation

The LYGL-350D has a reasonable parameter configuration and strong adaptability, and each parameter is designed to balance processing efficiency and product quality:
  • Basic Configuration: The standard cage length is 6m, and can be customized according to project needs to adapt to different precast component sizes. The equipment adopts stirrup as the winding bar and solid bar as the main bar, with 3-6 main bars (customizable) to meet the load-bearing requirements of different steel cages.

  • Reinforcement Adaptability: It supports main bars with a diameter of 10-20mm and stirrups with a diameter of 6-12mm, all of which can be customized. The minimum main bar spacing of 100mm and stirrup spacing ≥30mm ensure the structural stability of the steel cage and meet the mechanical performance requirements of precast components.

  • Welding & Power Performance: Adopting gas shielded welding (consistent with GB/T8110 standard) , it ensures uniform weld penetration, no false welding or missing welding, and the weld tensile strength meets national standards. The gas pressure is controlled within ≤0.8MPa to avoid welding defects such as pores caused by unstable gas supply. With a total power of 14.5KW and welding power of 100KW, it provides sufficient power support for stable welding of thick and thin steel bars.

  • Efficiency & Space Advantage: Only 1 operator is needed to complete the whole process, with a production efficiency of 24 sections (6m/section) per 10 hours, which is 8-10 times that of manual binding. The equipment covers an area of only 16m×3m, saving 50% of the site space compared with traditional equipment, making it suitable for precast factories with limited space.

Strict Operator Requirements

To ensure safe operation and product quality, operators must meet the following requirements:
  1. Professional Training: Operators must receive systematic training organized by the manufacturer, including equipment structure, working principle, operation process, parameter setting and fault handling. They can only take up their posts after passing the assessment, and must be familiar with the function of each button and the coordination of each component to avoid misoperation.

  2. Operational Experience: Having a certain degree of mechanical operation experience, being familiar with the safe operation procedures of welding equipment, and being able to quickly identify potential risks such as abnormal equipment operation and unstable welding quality.

  3. Standardized Protection: Wear qualified personal protective equipment in accordance with regulations. Safety helmets prevent falling objects from injury, protective glasses block welding spatter, earplugs reduce noise pollution (below 75dB during equipment operation), and protective gloves avoid hand scratches and burns, forming a comprehensive safety barrier.

Comprehensive Equipment Preparation

A full pre-operation inspection is the premise of stable equipment operation and high-quality production, including the following aspects:
  1. Equipment Appearance & Component Inspection: Check whether the equipment body, welding gun, stirrup bending device, transmission system and other parts are intact, without looseness, wear or deformation. Test the flexibility of the bending device and pressing device to ensure that each component operates normally, which is the key to ensuring the forming accuracy of special-shaped stirrups .

  2. Power Supply Safety Inspection: Ensure the equipment is reliably grounded, with a grounding resistance ≤4Ω , to prevent electric shock accidents. Check the power circuit for short circuits, leakage or aging, and confirm that the power switch and control system are sensitive and effective. The circuit should be arranged neatly to avoid being crushed or damaged by equipment operation.

  3. Auxiliary Material Preparation: Prepare main bars, stirrups and other materials that meet quality requirements, with complete quality certificates and conforming to national standards. The steel bars should be pre-straightened and derusted to avoid affecting welding quality and forming effect. For gas shielded welding, ensure that the carbon dioxide gas purity is not less than 99.9% , and the gas pipeline is intact without leakage.

The LYGL-350D Reinforcement Cage Welder relies on precise numerical control technology and reliable welding performance to realize the automatic forming of special-shaped stirrup steel cages. It not only improves production efficiency and reduces labor costs, but also ensures the consistency and stability of product quality. As part of our one-stop steel bar processing solution, we also provide customized parameter adjustment, on-site installation and commissioning, and lifelong after-sales service, helping customers solve various problems in special-shaped steel cage processing and empowering the high-quality development of precast concrete projects.


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