The Cold Extrusion Process for Rebar Couplers

Views:41Publish Time: 2026-08-14

The cold extrusion rebar coupler method involves the insertion of the ends of steel rebars into a specially designed steel coupler. Using a hydraulic extrusion machine, the coupler is compressed, leading to its plastic deformation. This deformation creates a mechanical interlock with the ribbed steel bars, resulting in a secure connection. Primarily, this connection method is used for 11-grade rebars with diameters ranging from 16mm to 40mm.


Specifications of Rebar Couplers

Rebar couplers come in various specifications, including φ14mm, φ16mm, φ18mm, φ20mm, φ22mm, φ25mm, φ28mm, φ32mm, φ36mm, and φ40mm. Our factory specializes in providing these sizes, along with the necessary cold extrusion machines to facilitate this efficient connection process.


The Cold Extrusion Process for Rebar Couplers

The cold extrusion steel rebar coupler connection process can be broken down into several vital steps:

1. Rebar Cutting: The steel bars are cut to the required lengths.

2. Thread Rolling: A specialized rolling machine is used to form threads on the ends of the rebars.

3. Thread Inspection: Each threaded end undergoes rigorous inspection to ensure quality standards.

4. Field Connection: Finally, the prepared rebar ends are connected on-site using the cold extrusion method.


The cold extrusion rebar coupler represents a breakthrough in the field of construction connections. With its secure joining process, variety of specifications, and the inherent strength provided through cold extrusion, this method offers an invaluable solution for engineers and contractors alike. Embracing cold extrusion techniques can significantly enhance the reliability and safety of construction projects, making it a preferred choice in modern construction practices.