The range of process is D14--D40mm and the effective length of the rebar head is 65-300mm.

1 Principle(1) Enlarging ends of reinforced bars by cold upsetting(2) Threading parallel threads(3) Splicing rebars by coupler 

2 Features(1) High splice strength, which could exert the ultimate and compression strength of rebar, it could satisfy the requirements       stipulated in the Chinese standard JGJ107, American  standard UBC 1997,and other requirements in the relevant standards       home and abroad;(2) Simple operation, fast splicing;(3) Several types of splices, which could be suitable for rebar splicing when the rebar cage or the winding rebar is used;(4) High production efficiency, it only takes less than 1 minute to upset and thread one thread on the site;(5) High adaptability, the splicing could be conducted when the power is off, or under water, or at super high position, or windy,       rainy and snowy weathers;(6) Environment-friendly, material-effective and economic;(7) Inexpensive to purchase, maintain and repair. 

3 CABR approximate dimensions for Upsetting Sys A

Bar Dia.(mm)	Metric Thread×Pitch	Standard Coupler
		OD (mm)	Length(mm)	Weight (kg)
14	M16×2.0	23	28	0.06
16	M18×2.0	26	32	0.09
18	M22×2.5	30	36	0.11
20	M24×2.5	33	40	0.15
22	M25×2.5	35	44	0.18
25	M29×3.0	40	50	0.27
28	M32×3.0	46	56	0.42
32	M36×3.0	50	64	0.53
36	M40×3.5	58	72	0.9
40	M45×3.5	64	80	1.08

Parallel Thread Rebar Splice with Upset End