High Precision CNC Machined Upset Forging Parallel Thread Rebar Coupler

The CNC Upset Forging Parallel Thread Coupler is a high-strength rebar connection component. It features precision CNC-machined parallel threads on upset rebar ends, ensuring reliable, load-bearing joints that meet Grade I connection standards.This series encompasses various certified and performance-tested couplers, such as  ISO15835 standard rebar couplers, Bartec couplers, CARES and DCL-approved rebar couplers, and slip test-qualified rebar couplers.

Rebar connection range: from 12mm to 40mm.

Material: 45C/40CR

Standard: BS4449, ISO15835,ACI318

Certificate: UK ,DCL

▎Advanced CNC Manufacturing Technology

Different from conventionally machined upset couplers, this product adopts fully automated CNC integrated production workflow covering blank cutting, end upset forging and thread processing. Computer numerical control systems precisely regulate hydraulic pressure and machining stroke during upset forming, ensuring every coupler maintains uniform end thickening size. The parallel threads are lathed by high-precision CNC equipment, which eliminates manual operation errors and guarantees perfect fit with matched threaded rebars. The one-piece forged structure retains complete metal fiber, avoiding hidden structural defects during long-term service。

▎Advantage

• With extremely high precision, the threads are perfectly matched. The tolerance of the internal and external threads is very small, the thread profile is full, smooth and free of burrs, and it fits 100% with the steel bar thread, ensuring more uniform force distribution.

• The quality is extremely stable. Fully CNC automated processing is adopted, which is not affected by manual skills. Each piece has the same size, and the scrap rate is almost zero.

• The tensile strength is more guaranteed. With high thread precision, there will be no slippage or disengagement when subjected to force.

• Compatible with high-end standards and export standards. It meets overseas standards such as the Chinese National Standard, British Standard, American Standard, and Australian Standard.

• Can be made into high-precision special specifications. Reducing diameter, reverse thread, lengthening, thickening, and non-standard sizes can all be precisely controlled.

▎Application & Installation Position

• High-end housing construction, municipal projects, and key engineering projects. Super high-rise buildings, landmark structures, large shopping malls, hospitals, schools, and other projects with high client requirements

• Major engineering projects such as bridges, tunnels, high-speed railways, and airports .Structures with high joint grades and seismic resistance requirements

• Large-diameter and high-strength reinforcing bars. Reinforcing bars of Φ25, Φ28, Φ32, Φ36 and above HRB500E/B500B/SD600/G75/G80 high-strength seismic reinforcing bars

• Enterprises with high demands on appearance and brand image. Those who want to produce brand sleeves and high-end products.

• Primarily applied to seismic-resistant buildings, high-rise landmark structures, large-span bridges, nuclear auxiliary facilities, highway viaducts and other key high-standard construction projects.

• It is also widely used for rebar connection in industrial workshops and large precast component factories with strict quality requirements.