Product description  
the rebar cold forging upsetting machine is mainly used for construction of ribbed steel bar rolling straight thread head, it is an important equipment of steel bar connection.
the rebar cold forging upsetting machine use the cold heading principle to make the steel end for plastic deformation, diameter increased 4 ~ 6mm, and then processing thread.
Feature  
1.It can process steel bars with diameter ranging from 16-32mm.
2.It greatly improves the tensile strength of the joint
3.High efficiency, can produce 300-500 pieces per machine.
4.Environmental protection, safety, economy,low cost.
PROCESSING STEP
the ends of the bars to be joined are cut square and enlarged by cold forging to increase their core diameter and so ensure that the joint is stronger than the bar. The couplers are usually supplied attached to the reinforcing bar. 
1. First use the upsetting machine to thicken the end of the rebar end, 
2. Then use the steel bar threading (cut) machine to make thread on the end of rebar's. 
3. Connect the two rebar end with the upsetting rebar couplers.
Applications
Rebar rib stripping and rolling straight thread machine tool is mainly used in machining construction engineering rolling straight thread heads with ribs. as the key equipment to realize rebar connection, it can machine φ16-φ40mm HRB335-500 ribbed rebar.
Features 
◆Completing machining of rebar threads at one time and the teeth of the machined threads are rich and smooth;
◆　Adopting unique spiral angle lifting technology, convenient and rapid for thread tightening, improving working efficiency;
◆　Optimized adjusting discs, adjusting the size of rolling threads at one time, no replacement of tool rests;
◆　Adopting eccentric shaft design, inter tooth plate adjustment, high machining efficiency;
◆　Three points in one line, high concentricity, high stability;
◆　Rebar realizes easy feeding, automatic return after thread rolling of the machine tools, daily production of 600-900 pieces of thread heads every day;