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Rebar Cold Forging Machine Manufacturer | Rebar Manufacturer India | What is a Rebar Cold Forging Machine and its Application?

 What is a Rebar Cold Forging Machine?

A Rebar Cold Forging Machine (also known as a Rebar Upsetting Machine) is a high-pressure hydraulic unit used to enlarge the end of a TMT bar before the threading process.Unlike hot forging, this process happens at room temperature (below the recrystallization temperature of the steel), which preserves and actually enhances the mechanical properties of the rebar. 

By increasing the diameter of the bar end, the machine ensures that the subsequent threading does not reduce the bar's core cross-sectional area, maintaining its full structural strength.

This machine is designed as per strength Requirement and bar break forms with ACI 318, IS 16172, and as per British Standard , so it compily with European and Indian standard codes.

In High cyclic process it also play very vital role in testing for 20 lakh Cycel to pass Splicing system.

In 16 and 20 mm , since cross sectional are is small,so that negligible impact on load, while for 25 mm and above to maintain good strength rebar forging is must.

Rebar Cold Forging Machine for 16mm to 40mm TMT bars


Why Use Cold Forging Rebar before Threading Opration in splicing?

The primary reason for using a cold forging machine is to ensure "Bar Break" performance. When a rebar is threaded directly, the "neck" of the bar becomes its weakest point. 

Cold forging "upsets" or thickens the end so that after threads are cut, the diameter of the threaded part is still larger than or equal to the original bar. This guarantees that under extreme tension, the bar will break before the joint fails. Polyhedron Hydraulic system is used in Power pack system so that threer will be no chance of failure

Applications of Rebar Cold forging machine :

  • High-Rise Buildings: Essential for structural integrity in vertical reinforcements.

  • Bridge & Flyover Construction: Used for heavy-load-bearing pillars and spans.

  • Metro & Tunnel Projects: Ideal for areas requiring seismic-resistant mechanical splicing.

  • Dams & Power Plants: Where high-tensile safety standards are non-negotiable.

TMT bars After Forging process


Technical Specifications of Rebar Cold Forging Machines:

FeatureSpecification Details
Model TypeRebar Cold Forging Machine
Processing Range16mm to 40mm TMT Bar Diameter
Motor Power5 HP / 7.5 HP High-Torque Electric Motor
Working Pressure4000 PSI to 4500 PSI
Cycle Time25 – 30 Seconds per Bar End
Operation ModeSemi-Automatic with Hydraulic Power Pack
Machine WeightApproximately 1200 kg

Benefits of Rebar Cold Forging Machines:

  • Enhanced Tensile Strength: Increases the density of the steel grain structure at the connection point, so that we can obtain very high tensile strength.
  • No Material Loss: Unlike other methods, it doesn't remove steel; it reshapes it to provide a stronger threading base.
  • Speed & Efficiency: A single cycle takes only 25-30 seconds, allowing for high-volume production on-site.
  • Seismic Resistance: Provides a safer, more reliable mechanical splice that outperforms traditional lap-splicing during earthquakes.
  • Cost-Effective: Reduces the total amount of steel required by eliminating long overlapping "laps" in the structure.

"Surya Engineering is a leading manufacturer and supplier of Rebar Cold Forging Machines, serving clients in Mumbai, Delhi, Ahmedabad, Pune, Bangalore, Hyderabad, and across all major industrial hubs in India."

For More Info:

Call:+91 8108446390

Email: surya.engineers2000@gmail.com

Website: www.suryaengineering.net

               www.suryaengineer.com


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