1) ADTO rebar coupler is made of high-quality carbon structural steel 45#/40Cr  with reasonable design, advanced technology, high precision and reliable connection quality.

2) We design the couplers of all specifications based on the strength requirements of HRB500 steel bars. Couplers are applicable to all screw thread steel on grade HRB335,HRB400,HRB500,HRB600.

3) The parallel rebar coupler system is one of the smallest and the most cost-effective coupler systems in our range, when used on large scale, high coupler volume projects.

4) The end of each bar to be joined is cut square and enlarged by cold forging. This increases the core diameter of the bar to ensure that the joint is stronger than the bar.

5) The ends of the bars are enlarged and a parallel thread is cut onto the ends to suit the threaded coupler. The coupler is assembled using a pipe or chain wrench. Calibrated wrenches are not necessary.

6) Good low temperature resistance, and could pass the -40 degree low temperature test.

Four Steps Process Splicing rebars with coupler

1) Cutting off the end of rebar;

2) working the end of rebars by thread machine

3) Making parallel threads;

4) Splicing rebars by coupler.