The JNC Series High-Speed CNC Angle Steel Punching, Marking Cutting Production Line

The JNC Series High-Speed CNC Angle Steel Punching, Marking Cutting Production Line

Product Introduction:

The JNC Series High-Speed CNC Angle Steel Punching, Marking, and Cutting Production Line integrates a punching unit, marking unit, shearing unit, transverse material transfer system, rotary loading mechanism, infeed conveyor, outfeed conveyor, CNC feeding carriage, hydraulic system, electrical control system, pneumatic system, and other auxiliary equipment. Specially engineered for the automated processing of angle steel used in transmission tower manufacturing, the production line applies comprehensive CNC control throughout the entire processing workflow. It combines ease of operation with a high degree of automation, outstanding machining precision, versatile multi-size processing capability, and efficient large-volume production.

Product parameters:

Product Features:

1. The CNC angle steel punching system is available in two-station and three-station configurations, with each station accommodating three different punch diameters. The CNC control system enables precise programming and positioning of punching coordinates, allowing both circular and slotted holes to be machined accurately. With high-speed material feeding and an optimized punching sequence, the system significantly enhances production throughput. When processing 50 × 50 × 4 mm angle steel, the machine can achieve an output of approximately 9–10 tons per 8-hour shift.

2. The marking unit features a fully enclosed, rigid structural design to ensure high mechanical strength and stable operation. Four cassette-type character holders are automatically selected according to programmed CNC instructions, and marking positions can be configured to meet specific production requirements. An optional 10-row rotary disc marking system enables automatic character selection and indexing, eliminating manual intervention while increasing marking efficiency and overall manufacturing capacity.

3. The shearing unit is equipped with a heavy-duty single-blade cutting mechanism designed to deliver high cutting force, accurate dimensional control, and reliable shearing results. The optimized cutting process minimizes material loss and produces clean, smooth edges with reduced burrs. Its open blade-holder design provides convenient access for safe and efficient blade replacement, helping shorten maintenance downtime and maximize equipment availability.

4. The horizontal material transfer system uses a motor-driven reduction gearbox to automatically transport angle steel to the rotary loading mechanism. This arrangement maintains proper workpiece alignment before feeding and facilitates stable, uninterrupted material transfer throughout the entire production process.

5. A servo-driven CNC feeding carriage securely grips and transports each workpiece with high positioning accuracy. A photoelectric encoder continuously provides position feedback within a fully closed-loop control system, ensuring precise feeding, consistent positioning, and excellent repeatability during machining.

6. The punching, marking, and shearing mechanisms are powered by a high-performance hydraulic system featuring a high-speed hydraulic power unit and accumulator. Ferrule-type hydraulic connectors provide secure, leak-resistant connections and simplify routine servicing. The hydraulic manifold incorporates premium Atos valve blocks to ensure dependable pressure regulation, stable system operation, and prolonged component service life.

7. To accommodate varying operating environments, the hydraulic system can be configured with water-cooling, air-cooling, or oil-cooling solutions. Customers can select the most suitable cooling method according to their site conditions, installation environment, and specific production demands.

8. The CNC control system combines an industrial computer, PLC, servo drives, and external sensors to provide integrated automation and precise process control. After machining parameters are entered, the software automatically generates the corresponding processing programs. The system also supports direct import of DXF, NC, and other compatible CAD-generated file formats. An intuitive Human–Machine Interface (HMI) offers graphical workpiece display, extensive program storage, real-time position tracking, and comprehensive fault-detection and diagnostic functions, improving production monitoring, equipment management, and overall operational productivity.

The demonstration samples include standard angle steel profiles and representative machining applications widely used in power transmission tower fabrication. These sample workpieces allow customers, engineers, and quality assurance personnel to evaluate machining precision, finished-product quality, dimensional consistency, and overall machine performance under representative processing conditions. They serve as practical references for assessing the equipment's processing capabilities and determining its suitability for a range of manufacturing applications.

In Ultra-High-Voltage (UHV) power transmission projects, transmission towers are required to withstand demanding environmental conditions and considerable structural loads. This production line plays an important role in manufacturing the angle steel components that form the primary load-bearing structure of these towers. It efficiently carries out high-precision punching and drilling operations on angle steel used for tower bodies, cross-arms, and other essential structural members, ensuring accurate hole positioning, reliable structural connections, and consistent component dimensions. As a result, the system contributes to improved structural integrity, operational safety, and long-term service reliability of transmission towers, while providing an efficient and dependable manufacturing solution for high-volume production in modern power transmission infrastructure.