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Contact Supplierwe are offering rebar thread rolling machine:types of rebar coupler: rebar coupler is mainly divided into two parts. a.threaded type rebar coupler b.non threaded type rebar coupler threaded type rebar coupler: thredaed type coupler is again divided into parallel threaded and taper threded type coupler. parallel threaded rebar coupler: parallel rebar coupler is divided into 1.roll tech (roll thread ) coupler 2.cold forged rebar coupler(upsetting type-2) roll tech (roll thread ) coupler: roll thread jointing system is used as type 1 coupler which can give strenth of 625 mpa for fe 500 rebar. in roll thread system threading is done by pressing ribs and rebar by force of rollers.this kind of system is very fast and quick can be done 700 bar is 8 hours. roll thread system is good for upto 32 mm rebar. cold forged system: cold forging system involve two machine .1.upsetting (cold forging machine) 2.rebar cut thread machine



