It is the transition/reduction coupler of Barcoup system. Reinforcements statically transit from large diameters to smaller ones particularly in high-rise buildings. This type of coupler (Rebar Coupler) is used in transition reinforcements. To give an example, a thread is cut on one side of the reinforcement suitable for upset parallel thread system for Q32 in transition coupling Q32/Q25 and another one suitable for upset parallel thread system for Q25 in regard to other reinforcement. Reinforcement is rotated with specially designed coupler and assembly is completed.

1 short threaded reinforcement – Big diameter

1 short threaded reinforcement – Small diameter

1 protective plastic cap

1 reduction coupler

Reinforcing Bar Couplers- Sleeved Reinforcing Bars

Overlapped inserts are not always appropriate tools for coupling rebars. Using Regbar Reinforcing Rebar Couplers simplifies design and construction or reinforced concrete and reduces the amount of bars. Regbar Mechanical Reinforcement Couplers provide solutions for construction reinforcement bundles such as overlap and welding.

Our strategy is offering more affordable and extremely safe rebar inserts as compared to the options of overlapping and welding. RegbarMechanical Reinforcement Couplersand equipment are economic, safe, designer-friendly and easily applicable. In brief, Regbar provides matchless benefits and higher earnings to its customers!

In the Overlapping Method, concrete is needed for load transfer. In addition, when the reinforcement reaches the zone of leakage  and its diameter changes, clamping ends and the joint doesn’t work. At joints made by Regbar Reinforcing Rebar Couplerssuch clamping is not needed and thus, the joint continues to take on load in keeping with the tensile strength. It delivers outstanding performance at cold joints formed between the floor columns.

Comparison Of Overlapping Visual For More Information Why Reinforcement Coupler

Regbar Upset Parallel Thread Rebar Couplerscover the processes of cutting bars, cold heading and high profile tangential threading of rebar ends by using Regbar equipment designed for this purpose.

This method provides larger diameter reinforcement ends for thread cutting and loss of cross-section equilibrium. Ends of the rebars previously cut by rebar manufacturers/subcontractors in the field have an undulated surface.

Regbar recommends utilization of professional, highly efficient, cost-effective Reinforcing Rebar Couplers which prevent intensive rebar loss and reduce labor time by professional rebar applicators.

Production Stages

ARegbar Upset Parallel Thread Equipment Setconsists of a rebar cutter or a hacksaw, a high-pressure cold press and a section (cutting ?) thread cutting machine designed for ribbed rebars.


As seen in the attached photos of the mobile equipment which can be quickly installed in the field, our products facilitate thread cutting on the rebar and reduce the logistics cost as the reinforcements will not be transported for thread cutting. All machinery and equipment are designed and manufactured by Regbar. The quality of our equipment are CE and ISO 9001 certified. The equipment is shipped to the field in the container area as ready to operate and it contains Cold Forging Press, Rebar Thread Cutting Machine, Band Saw and Grinding Machine.

Image of the equipment

All equipment, tools, formworks and accessories are designed and manufactured by Regbar.