Xuhui (Shandong) Intelligent Equipment Co., Ltd. is one of the leading manufacturers and suppliers of tunnel steel bar bending and coiling machine in China. If you're going to wholesale high quality tunnel steel bar bending and coiling machine made in China, welcome to get quotation from our factory. Customized orders are welcome.
The tunnel steel bar bending and coiling machine is a dedicated piece of equipment designed specifically for processing steel bars used in tunnel engineering. It can accurately bend and coil steel bars into various shapes required for tunnel support structures, making it a core piece of equipment for steel bar processing in tunnel construction.
It is also a key machine in modern beam yard construction, offering high precision, high efficiency, and a wide range of application scenarios.
Working Principle and Process
The working principle of this machine lies in the integration of mechanical transmission and intelligent control. The motor provides power, which is transmitted through the drive system to operate the feeding mechanism and bending components. The intelligent control system precisely controls the feeding length, bending radius, and bending position of the steel bars according to preset programs.
For example, when processing stirrups for lattice arch supports used in the initial support stage of tunnel construction, operators only need to input the design parameters. The machine will automatically feed the steel bar into position, and the bending mechanism will then follow the preset trajectory to quickly form stirrups that meet the required specifications.
When using a CNC rebar bending machine, the processing flow is clear and highly efficient. First, the steel bar is placed on the conveying device, where the feed rollers automatically move it forward. Next, the traction rollers guide the steel bar into the bending machine, and the bending unit precisely controls the operation to form the steel bar into the preset shape. Finally, the cutting device accurately cuts the steel bar to length, completing the entire process. Throughout the operation, the operator only needs to press a few buttons, while the rest of the work is completed fully automatically by the machine, requiring minimal manual intervention.
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Product Advantages
- This CNC rebar bending machine stands out for its practical advantages. It uses advanced computer numerical control (CNC) technology, allowing straightening, cutting to length, bending, and cutting of steel bars to be completed automatically in one go, with high speed and maximum production efficiency.

- The machine can bend steel bars up to 16mm in diameter and can continuously process flat-shaped bars such as stirrups, plate bars, U-bars, and figure-eight bars. Moreover, the equipment has a low failure rate, bends quickly, consumes little power, and does not damage the steel bar ribs during processing. It operates quietly with minimal vibration, is very stable, and is simple and flexible to operate, making it easy to master.
- Its adaptability and flexibility are excellent. Steel bars of different diameters and lengths can be processed, and adjustments to bending angles or forming styles can be made easily. Even complex shapes like spiral stirrups or 3D figure-eight bars can be produced. Whether for bridge construction, tunnel excavation, or prefabricated component processing, this machine is highly versatile and suitable for a wide range of applications.
- On actual construction sites, the results are impressive. For example, in a high-speed rail project, replacing traditional bending equipment with this CNC bending machine greatly improved stirrup processing efficiency, saving both labor and material costs while significantly increasing production efficiency, creating tangible economic benefits.
- In addition, using this machine also brings social benefits. Material waste is minimized, reducing construction costs, and the quality of processed steel bars is more reliable. It also reduces worker labor intensity, improves the working environment on site, makes operation safer, and overall boosts work efficiency.
Operating Procedures and Safety Guidelines
When operating this machine, it is essential to follow the proper steps and precautions:
First, check that the machine is functioning properly. Once confirmed, install the mandrel and stopper, secure the machine firmly, and place the steel bars in position, pressing them down by hand. During operation, do not change the mandrel, adjust angles, or modify speeds while the machine is running-these adjustments must be done only when the machine is stopped.
Additionally, the steel bar diameter and machine rotation speed must never exceed the equipment's specified limits. By following these rules, the machine will operate safely and steadily, achieve maximum efficiency, and minimize the risk of malfunction.

Safety Precautions and Maintenance
Be cautious while bending steel bars: No one should enter the machine's operating area, and nobody should stand on the unsecured side of the machine-it is extremely dangerous. Arrange semi-finished bent bars neatly, always placing bent hooks downward to prevent scratches, collisions, or accidental injury.
Changing the turntable direction: Always wait until the machine comes to a complete stop before making any adjustments. Do not rush, as doing so can cause accidents or damage.
Post-operation cleanup and maintenance: After finishing work, clean the worksite thoroughly, perform routine maintenance on the machine, disconnect the power supply, and lock the power box. Ensure the power is off when unattended-this protects both the operators and the machine.



