upset forging parallel thread rebar coupler

Specifications 1,the material is carbon constructional quality steel of No.45

2,diameter of coupler is from 16mm to 40mm

  upset forging parallel thread rebar coupler 1,the material is carbon constructional quality steel of No.45 2,diameter of coupler is from 16mm to 40mm   Upsetting Technology

	CUTTING The end of the reinforcement bars is sawn square
	COLD FORGING  The essence of the Upset system consists in a Patented method of enlarging the end of the reinforcement bar by cold forging, thus increasing its core diameter.
	THREADING An ISO standard metric thread is then cut