The design and application of round threaded rebar coupler is suitable for most places where reinforcement bar connection is required. The tail end of the rebar is tapered by the lathe cutting pin, and then it is drilled by the external thread, which is cut and installed on the rod to adapt to them, and then the sleeve is screwed onto the threaded rod and the calibrated torque wrench is used to finish.
The end of each rebar to be connected is tapered or flat shape and expanded by cold forging. This increases the core diameter of the reinforcement to ensure that the joint strength at the joint is stronger than that of the bar body. Form parallel metric thread ends on the rod. The threaded end can be verified by testing the strength of the bar equal to the characteristic yield.
At the same time, in the process of concrete pouring, it is often encountered that the concrete cannot pass through the reinforcement cage. Lapping effectively doubles the ratio of reinforcement to concrete, resulting in blockage that will limit the flow and distribution of larger aggregate particles and the effectiveness of vibration. Mechanical splicing will greatly reduce this crowding.
|Size mm||d mm||L mm||D mm|
|M10 X 40||10||40||14|
|M12 X 55||12||55||16|
|M14 X 60||14||60||18|
|M16 X 70||16||70||21|
|M18 X 80||18||80||25|
|M20 X 85||20||85||27|
|M24 X 90||24||90||32|
|M30 X 105||30||105||38|
** The tapping Metric,Inch, RD and RB thread styles are available as customer's requires.
** The special style and size are available as the drawings and samples supplied.