Holds the most patents in the industry of korea
ROC developed the world's first one-touch rebar coupler in 2009.we are still working on developing more advanced couplers today.
2009
♦ Developed the world's first one-touch rebar coupler ♦ Korean Patents Number⋅ 10-1033681⋅ 10-1036591⋅ 10-0953941 ♦ developed two kinds of one-touch couplers⋅ Products developed to be tied to the rib and nodes of rebar⋅ Wedge lock works
2018
♦ Released the One-Touch Rebar Coupler (ROC-A1) ♦ It is the originator of the now popular one-touch coupler. ♦ D19, D22, D25, D29, D32 Released five sizes of one-touch couplers. ♦ Passed tensile strength test, low cycle repetition test
2019
♦ Launched a high-strength cast iron one-touch coupler (ROC-A2)♦ Korean Patents Number⋅ 10-1951882⋅ 10-2149032 ♦ Improvements to ROC-A1⋅ Use high-strength cast iron⋅ Reduce costs with mass production⋅ An opening to check rebar connection
2020
♦ eveloped a high-strength cast iron one-touch coupler that can be disassembled (ROC-A3) ♦ Korean Patents Number⋅ 10-2272480 ♦ Improvements to ROC-A2⋅ This is the same high-strength cast iron as the ROC-A2⋅ Can be dismantled if rebar is misplaced⋅ Reduced size and weight compared to the original ROC-A2
2022
♦ Released a one-touch coupler with a reinforced cap (ROC-A7) ♦ Korean Patents Number⋅ 10-2501205 ♦ Integral Body Rebar Coupler with Reinforcement Cap⋅ A one-body product that ensures quality stability⋅ The best product for tensile strength with the reinforcing caps⋅ Holes to check rebar connection
2010
♦ Developed the first thread type one-touch rebar coupler ♦ Korean Patent Number⋅ 10-1030579⋅ 10-1036594 ♦ Meets slip test (within 0.3 mm)⋅ Spring-pressurized rebar threaded coupler⋅ One touch type
2014
♦ Developed a threaded one-touch coupler using a wedge pieces ♦ Korean Patent Number⋅ 10-1570867⋅ 10-1554723 ♦ Meets slip test (within 0.3 mm)⋅ Thread type One-Touch Coupler⋅ Wedges compatible with the standard thread⋅ Passes tensile strength, low cycle repetition, and slip test
2018
♦ Spring-pressurized type one-touch coupler for screw type ends of rebar released.(ROC-B2) ♦ Meets slip test (within 0.3 mm)⋅ Thread type One-Touch Coupler⋅ ROC's specific threads and springs are used⋅ Cost savings over products that used wedges
2020
♦ Developed a tool to automatically rotate rebar(ROC Wrench) ♦ Korean Patent Number :10-2344927 ♦ Automatic fastening with rotating rebar⋅ A specially designed coupler holder and impact wrench are used⋅ No need to use a pipe wrench⋅ Used for connecting threaded couplers⋅ Improve the connecting stability of threaded couplers
2022
♦ We developed a No slip on-site coupler for no machining on the ends of the rebar (ROC-S1) ♦ Korean Patent Number : 10-2344476 ♦ Meets slip test (within 0.3 mm)⋅ No rebar ends machining required⋅ Passes tensile strength, low cycle repetition, and slip tests
2022
♦ Developed a threaded one-touch coupler using a wedge pieces (ROC-B1) ♦ Meets slip test (within 0.3 mm)⋅ Thread type One-Touch Coupler⋅ Wedges compatible with the standard thread⋅ Reduced costs by using one-touch type on only one side⋅ Passes tensile strength, low cycle repetition, and slip test
ROC Co., Ltd specializes in one-touch rebarcouplers with the world's best technology. Developing technologies for better qualityand more affordable prices is ROC's socialresponsibility
