Model JNC2020 High Speed CNC Angle Punching Marking Cutting Machine 3 Punches Per Side

Model JNC2020 High Speed CNC Angle Punching Marking Cutting Machine 3 Punches Per Side

Product Introduction:

The JNC Series High-Speed CNC Angle Steel Punching, Marking, and Cutting Production Line consists of 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 components. Specifically developed for the automated production of angle steel used in transmission tower fabrication, the line incorporates comprehensive CNC control throughout the entire manufacturing process. It delivers user-friendly operation while achieving high levels of automation, exceptional machining accuracy, flexible multi-size processing, and efficient large-scale production.

Product parameters:

Product Features:

1. The CNC angle steel punching system is offered with either two or three punching stations, with each station supporting three different punch diameters. Punching positions are accurately determined and controlled by the CNC system, allowing precise production of both round and slotted holes. Together with high-speed material feeding and optimized punching cycles, the system substantially improves overall production efficiency. When processing 50 × 50 × 4 mm angle steel, the production output can reach approximately 9–10 tons within an 8-hour working shift.

2. The marking unit incorporates a fully enclosed, high-strength structural configuration, providing excellent rigidity and operational stability. Four cassette-style character holders are automatically selected according to CNC-programmed instructions, while marking positions can be configured to meet specific production requirements. An optional 10-row rotary-disc marking mechanism provides automatic character indexing without requiring manual adjustment, significantly improving marking efficiency and overall production throughput.

3. The shearing unit utilizes a robust single-blade cutting configuration, delivering substantial cutting capacity, precise dimensional control, and consistent shearing performance. The optimized cutting process effectively reduces material loss while producing smooth and clean cut edges with minimal burr formation. The open blade-holder structure provides convenient access for rapid and secure blade replacement, shortening maintenance periods and improving machine availability.

4. The horizontal material conveying system automatically transports angle steel to the rotary loading mechanism through a motor-driven reduction gearbox. This configuration maintains stable workpiece positioning prior to feeding and ensures reliable, continuous material transfer throughout the complete production process.

5. Workpieces are firmly clamped and conveyed by a servo-controlled CNC feeding carriage. A photoelectric encoder continuously transmits positional feedback through a fully closed-loop control system, providing highly accurate material feeding, precise positioning, and excellent repeatability during machining.

6. The punching, marking, and shearing assemblies are driven by a high-performance hydraulic system incorporating a high-speed hydraulic power unit and accumulator. Ferrule-type hydraulic fittings provide secure, leak-resistant connections while facilitating routine maintenance. The hydraulic manifold is equipped with high-quality Atos valve blocks, ensuring stable pressure control, reliable hydraulic operation, and extended system durability.

7. To meet the requirements of different operating environments, the hydraulic system is designed to support several cooling configurations, including water cooling, air cooling, and oil cooling. The appropriate cooling method can be selected according to the customer's operating conditions, installation environment, and specific production requirements.

8. The control platform combines an industrial computer, PLC controller, servo drive system, and external sensing devices to form an integrated CNC control architecture. Once the required machining parameters are entered, the software automatically generates the corresponding machining programs. The system supports direct import of DXF, NC, and other CAD-generated file formats. Its intuitive Human–Machine Interface (HMI) provides graphical visualization of workpieces, high-capacity program storage, real-time position monitoring, and comprehensive fault-diagnostic functions, significantly enhancing production control, equipment management, and operational efficiency.

The demonstration samples cover standard angle steel specifications and representative machining applications commonly utilized in power transmission tower manufacturing. These typical workpieces enable customers, engineers, and quality-control personnel to directly assess machining accuracy, processing quality, dimensional consistency, and overall equipment performance. They therefore provide practical and reliable references for evaluating the machine's processing capabilities and determining its suitability for diverse production requirements.

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.