CNC Automatic Thread Rolling Machine

Cnc automatic rebar saw cutting threading production line

1. High degree of automation, greatly reduce the intensity of labor;
2.The whole machine is equipped with transverse feeding device, which is convenient for feeding;
3. The automatic sheathing wire is connected with the steel bar sawing equipment. After the steel bar is cut to the specified length by the sawing equipment, it is directly entered into the wire jacking equipment without occupying the site to store the steel bar;
4. The automatic production of steel wire nesting process is realized, the automation degree of wire nesting production equipment is improved and the labor force is reduced;
5.The shortest time to achieve from raw materials to both ends of the semi-finished wire;
6. its joint quality is stable and reliable, joint strength is higher than the usual base material.





Product Details

CNC Automatic Thread Rolling Machine for Making Various Thread Steel bar

Revolutionize your rebar processing workflow with our CNC Automatic Thread Rolling Machine—a cutting-edge solution designed for high-precision, fully automated thread formation on steel bars. Engineered for construction, infrastructure, and metal fabrication industries, this machine integrates seamlessly with sawing equipment to deliver end-to-end threading solutions, reducing labor, optimizing space, and ensuring superior joint quality.

Fully Automated Operation for Unmatched Efficiency
Our machine leverages advanced CNC technology to streamline the entire threading process, eliminating manual intervention and reducing labor intensity by 60%:
  • One-Click Programming: Input bar diameter (12–40mm), thread length, and pitch via the intuitive touchscreen interface—ideal for both standard (e.g., M24) and custom thread specifications.

  • Continuous Production Flow: Integrates with upstream steel sawing equipment to automatically feed cut bars (500mm–12,000mm length) into the threading unit, eliminating intermediate storage and material handling—perfect for high-volume fabrication lines.

Smart Feeding & Seamless Integration
A built-in transverse feeding device ensures effortless material loading, while the automated sheathing system connects directly to sawing equipment for a frictionless workflow:
  • Space-Saving Design: Eliminates the need for storing cut bars with a direct-to-threading transfer mechanism, reducing floor space requirements by 30% in busy workshops.

  • Zero Downtime Transition: Sensors detect incoming bars and align them precisely for threading, ensuring a smooth handoff from sawing to threading without operator intervention—critical for 24/7 production environments.

End-to-End Semi-Finished Thread Production
Achieve raw material to dual-end threaded semi-finished products in the shortest time possible:
  • Rapid Thread Formation: Processes up to 150 bars per hour with a servo-driven rolling head, delivering uniform threads with ±0.05mm pitch accuracy and full compliance with GB/T 1499.2 and ISO 15835 standards.

  • Consistent Joint Quality: Hydraulic clamping applies 50+ tons of pressure to form deep, burr-free threads, ensuring joint strength 10% higher than base material—ideal for seismic-resistant structural connections in bridges, high-rises, and foundation piles.

Saw cutting part

The sawing machine adopts China famous brand Chen-long sawing machine, hydraulic controlled sawing feed, non-pole adjustable workpiece tightening, double vise tightening, so that the sawing is more stable, the band saw blade adopts rolling bearing, and hard alloy guide, extend the service life of the saw blade.

Threading

Set of silk machine set of wire diameter Φ 45 biggest, adopts 7.5 kw power motor, sets of silk at a faster rate.

Grinding

Sandpaper grinding method is adopted. The finished workpiece has no burr and is more smooth when connecting the sleeve.
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