CNC Steel Bar Bending Machine, Fully Automatic Intelligent Equipment Leading the Innovation of Steel Bar Processing

Traditional manual processing of 1,000 standard stirrups requires 8-10 people to work together for one day. However, a single CNC steel bar bending machine only needs 1-2 operators, which can process 2,000 standard stirrups per hour, with a maximum daily output of 12,000 pieces, equivalent to the workload of 10-15 skilled workers. According to the application data of the Minmetals 23rd Metallurgical Xinxang Chemical Project, after deploying the WGT-D3 CNC bending machine, the daily processing volume of raw steel bars increased from 1 ton to 10 tons, and a 2-person team can replace the traditional 20-30 person team, saving more than 800,000 yuan in labor costs per project per year.

Product Details

As a core equipment for the intelligent transformation of the infrastructure and construction industries, the CNC steel bar bending machine is tailor-made for stirrup processing in scenarios such as building beams and columns, bridge guardrails, and municipal utility tunnels. By virtue of industrial-grade PLC numerical control system and high-precision servo drive technology, it realizes the full-process automation of steel bar straightening, length fixing, bending forming and cutting, completely replacing the traditional manual bending mode. It solves the industry pain points of low efficiency, large precision fluctuation and serious material waste in manual processing. Currently, it has been widely applied in key projects such as the Minmetals 23rd Metallurgical Xinxang Chemical Project and high-speed railway bridge construction, and has become a standard equipment in intelligent steel bar processing plants.

steel bar bending machine

Core Configuration: Modular Structure Lays a Solid Foundation for Performance

The equipment adopts a modular design of "intelligent control + precise execution + stable bearing", and each unit cooperates to realize the full-process closed-loop control of processing. The key configurations integrate cutting-edge industry technical highlights, as detailed below:
  • Intelligent CNC Control System: Equipped with an industrial-grade PLC controller and a 10-12 inch high-definition touch screen, it has built-in 500+ sets of standardized stirrup graphic templates. It supports one-key setting of parameters for rectangular, circular, special-shaped and 3D complex stirrups. New operators can work independently after 1 hour of training. High-end models are compatible with the BIM-MES collaborative management system, which can upload processing quantity and precision data in real time to realize visual management of project progress and meet the digital needs of modern construction.

  • Precise Processing Execution Unit: Adopting a horizontal + vertical double straightening wheel system, combined with 4 sets of traction wheels and high-power Dongling servo motors, it realizes stress-free straightening of Φ5-Φ16mm coiled round steel and deformed steel bars. The straightening precision is 60% higher than that of traditional equipment. The core bending mechanism adopts high manganese steel quenching and tempering technology, equipped with 3D intelligent linkage bending technology, which can realize 0-180° two-way bending. The bending speed reaches 1050°/second, and the single-point bending error is controlled within ±0.5°, far exceeding the industry average level.

  • Efficient Production Auxiliary System: Equipped with 2 sets of 2-ton enhanced pay-off racks, it supports double-line synchronous feeding processing and can handle 2 Φ5-Φ12mm steel bars at the same time. The production efficiency is 80% higher than that of single-line equipment. Some models are equipped with automatic return and material shifting mechanisms, which can flexibly switch between stirrup, hook bar and slab bar processing modes to realize "one machine for multiple uses" and greatly reduce equipment investment costs.

  • Stable Bearing and Protection System: The machine body is formed by integral welding of thickened steel plates, and the core load-bearing components are strengthened by quenching. It can operate continuously for 24 hours without failure in complex construction site environments such as dust and vibration, with a designed service life of 8-10 years. It has built-in emergency braking, overload protection and oil fume purification devices, which meet the standards of green construction and safe production.

Core Performance Advantages: Multi-dimensional Empowerment for Quality and Efficiency Improvement

1. Efficiency Multiplication: 80% Direct Reduction in Labor Costs

Traditional manual processing of 1,000 standard stirrups requires 8-10 people to work together for one day. However, a single CNC steel bar bending machine only needs 1-2 operators, which can process 2,000 standard stirrups per hour, with a maximum daily output of 12,000 pieces, equivalent to the workload of 10-15 skilled workers. According to the application data of the Minmetals 23rd Metallurgical Xinxang Chemical Project, after deploying the WGT-D3 CNC bending machine, the daily processing volume of raw steel bars increased from 1 ton to 10 tons, and a 2-person team can replace the traditional 20-30 person team, saving more than 800,000 yuan in labor costs per project per year.

2. Millimeter-level Precision: Zero Rework to Ensure Project Quality

Through the dual closed-loop control of servo drive and numerical control system, the steel bar length error is stably controlled within ±1mm, the bending angle precision reaches ±0.5°-±1°, and the slab bar straightness error is controlled within 0.02mm/m, which is far higher than the requirements of the *Code for Construction Quality Acceptance of Concrete Structure Engineering*. High-precision processing significantly improves the uniformity of stirrup dimensions, enhances the stability of the steel skeleton during concrete pouring, and reduces material cutting waste. The material utilization rate increases from 85% of traditional manual processing to more than 98%, and large-scale projects can save more than 15 tons of steel consumables per year.

3. Flexible Adaptability: Seamless Switching Between Multiple Scenarios

The standard model supports the processing of Φ5-Φ16mm coiled round steel and deformed steel bars. The double-line processing can adapt to Φ5-Φ12mm steel bars. The stirrup side length range covers 90mm-2400mm, and it can quickly switch between rectangular, circular, special-shaped and 3D complex stirrup processing modes. The rotatable design of the main machine combined with the programmable parameter storage function allows specification adjustment in only 3-5 minutes, and can meet the needs of multiple scenarios such as building beams and columns, high-speed railway guardrails and prefabricated components without replacing the mold. High-end models can even process Grade 4 steel bars to meet the special requirements of high-strength projects.

4. Energy Saving and Durability: 30% Further Reduction in Operation and Maintenance Costs

Adopting intermediate frequency inverter energy-saving technology, the total power of the equipment is 20-50kW, and the average hourly power consumption is only 7-10kW, which is 28% lower than that of traditional bending equipment. A single equipment can save more than 20,000 yuan in electricity bills per year. The modular design makes maintenance more convenient. The core bending components have a 2-year warranty. Daily maintenance only requires regular inspection of hydraulic oil level and straightening wheel wear. The equipment operation rate is stably above 95%, which greatly reduces downtime losses.

Core Technical Parameters

Parameter Item
Standard Model (SGW12D Series)
High-end Model (WGT-D3 Series)
Processing Steel Bar Diameter
Single-line Φ5-13mm; Double-line Φ5-10mm
Single-line Φ5-16mm; Double-line Φ5-12mm
Bending Angle Range
0-180° (Two-way)
0-180° (Two-way, supporting 3D bending)
Processing Precision
Length ±1mm; Angle ±1°
Length ±1mm; Angle ±0.5°
Production Efficiency
1500-2000 pieces/hour (Standard stirrups)
2000-2500 pieces/hour (Standard stirrups)
Traction Speed
80-100m/min
100m/min
Total Power
20-30kW
48-50kW
Overall Dimension
8000×1600×1800mm
8500×1800×2000mm

Application Scenarios and After-sales Service

The equipment is widely applicable to various construction scenarios: Building Construction Engineering (beam and column stirrup, slab bar processing), Bridge Infrastructure (guardrail steel bar, pile foundation stirrup forming), Municipal Engineering (utility tunnel, tunnel steel bar processing), Prefabricated Component Factory (mass production of standardized stirrups) and Chemical Infrastructure (steel bar processing for large equipment foundations), etc. For the needs of high-strength projects such as high-speed railways and nuclear power plants, customized Grade 4 steel bar processing models and 3D stirrup processing solutions can be provided.
A complete after-sales service system provides strong support for construction: free on-site installation, commissioning and 3-person/2-day special training are provided to ensure that operators can quickly master parameter setting and fault troubleshooting; the whole machine has a 1-year warranty, and core components (servo motor, bending shaft, PLC system) have a 2-year warranty; 32 service outlets across the country provide on-site maintenance within 48 hours, and the 24-hour technical hotline responds in real time to ensure the continuous and stable operation of the equipment.


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