As an automated rebar processing equipment, the CNC rebar cutting production line integrates CNC technology, hydraulic systems, and intelligent control to achieve fully automated operations including rebar feeding, fixed-length cutting, shearing, and classified storage. It has become an indispensable key equipment in highway, railway, bridge, nuclear power construction, and large-scale construction projects.
![Rebar Cutting machine]( "Rebar Cutting machine")
01 Product Overview
Adopting a modular design concept, it integrates the functions of rebar conveying, fixed-length cutting, shearing, and classified storage to form a complete automated processing line.
This production line can automatically cut rebars to the required length and store them in categories, making it a fully
automatic integrated equipment.
Generally, the equipment consists of a CNC system, a rebar feeding mechanism, a shearing mechanism, an automatic counting device, and a rebar rack. The core system adopts an imported PLC combined with a touchscreen control interface, enabling easy operation.
The CNC rebar cutting production line has a wide processing range, capable of handling rebars with diameters from φ10mm to φ50mm and cutting lengths ranging from 1 meter to 12 meters, which can meet the needs of cutting rebars of different lengths.
02 Working Principle and Core Technologies
Core Technologies
Precise Fixed-Length System: A servo motor-driven lead screw mechanism is used to adjust the distance between the shearing blade and the positioning baffle. Encoders are employed for measurement, ensuring high fixed-length accuracy of up to ±2mm.
Mobile Free Fixed-Length Trolley Device: It can ensure fixed-length accuracy and allow cutting to any arbitrary length.
Efficient Shearing Technology: Compared with the mechanical punch-shearing method, it features low noise, long service life, and stable equipment operation.
Intelligent Pressing System: Rebars are pressed by oil cylinders with high pressure, preventing rebars from rotating during shearing and ensuring uniform rebar cut ends. The clamping method combines hydraulic and pneumatic systems to ensure firm clamping without loosening.
Control System
The CNC rebar cutting production line adopts an imported PLC and CNC control system, combined with a touchscreen control interface for easy operation.
The control system allows setting parameters such as the number and specifications of rebars, and is equipped with memory and storage functions. It also supports visual fault alarm: when a fault occurs, the human-machine interface displays prompt information to guide on-site maintenance personnel to quickly troubleshoot.
03 Product Features and Advantages
The CNC rebar cutting production line has obvious features and advantages, mainly reflected in the following aspects:
High-Efficiency Production: Fast shearing speed, with a conveying speed of up to 1.92 meters per second. It can process multiple rebars at one time, with a production capacity of up to 50 tons per shift, greatly improving production efficiency.
Precision Guarantee: Adopting a servo positioning system and encoder measurement, the shearing length error is small, controllable within ±2mm, which fully meets the market precision requirements.
High Degree of Automation: The entire process from rebar loading, conveying to shearing and classified storage is completed automatically, requiring only 1-2 operators, significantly reducing labor intensity.
Strong Flexibility: It has a wide range of rebar cutting lengths (up to 2-12 meters) to meet different engineering needs. The diversified material storage device can be used in a single bin or a combination of multiple bins, increasing the flexibility of rebar storage.
High Durability: Key components of the hydraulic system are manufactured in accordance with high-specification production standards, and the hydraulic cylinders use imported seals, which greatly extend the service life.
High Safety: Equipped with complete safety protection devices, including emergency stop buttons and protective doors, to ensure production safety.
04 Main Technical Parameters
The technical parameters of a typical CNC rebar cutting production line are as follows:
| Parameter Item | Technical Specification |
|---|
| Shearable Rebar Diameter Range | Φ12～50mm |
| Shearing Length Range | 1～12m |
| Shearing Precision | ±2mm |
| Shearing Frequency | 20 times/minute |
| Conveying Speed | ～1.92m/s |
| Number of Operators | 1-2 persons |
| Equipment Power | Approximately 25-34KW |
| Equipment Overall Dimensions | 28m×3.3m×2.5m |
| Electrical Control System | 380V, 50～60HZ |
| Hydraulic System Pressure | 31.5Mpa |
05 Application Scenarios
The CNC rebar cutting production line is widely used in the following fields:
Large-Scale Construction: Used for rebar processing in concrete structures of high-rise buildings, industrial plants, etc.
Transportation Engineering: Widely applied in the construction of highways, railways, bridges, and other projects.
Energy Construction: Used for rebar processing in construction projects such as nuclear power plants, hydropower stations, and thermal power plants.
Prefabricated Components: Suitable for rebar processing in various concrete prefabricated component factories.
This equipment is particularly suitable for rebar cutting tasks with multiple specifications and small batches. For rebars with multiple specifications and large batches, it can be set to cut to any length, meeting the diverse needs of different projects.
06 Selection Recommendations
When selecting a CNC rebar cutting production line, the following factors should be considered:
Processing Requirements: Choose an appropriate model based on the diameter, strength, and length requirements of commonly used rebars.
Production Capacity Requirements: Select equipment configuration according to the project scale and output requirements; the maximum production capacity per shift can reach 50 tons.
Spatial Layout: Consider the size of the equipment installation site to ensure there is sufficient space to accommodate the entire production line.
Expandability: Choose products with a modular design to facilitate future combination and linkage with other equipment (such as bending centers and threading machines).
Supplier Services: Select suppliers that provide comprehensive pre-sales and after-sales services, including installation and commissioning, technical training, and maintenance support.
07 Maintenance and Upkeep
To ensure the long-term stable operation of the CNC rebar cutting production line, regular maintenance is required:
Electrical System Inspection: Regularly check whether the joints of each control cable are loose and whether the insulation layer of the cables is damaged.
Air Circuit System Maintenance: Check for air leakage in air pipe joints and air circuits.
Lubrication Maintenance: The main machine head adopts a centralized lubrication system; regular lubrication is required to ensure a reliable working state.
Hydraulic System Maintenance: Regularly check the quality and level of hydraulic oil, and replace the hydraulic oil in a timely manner.
Safety Device Inspection: Regularly check whether the safety micro-switches and emergency stop buttons are working normally.
