Cold pressing couplers for higher strength rebars need with good raw material 16Mn or 20# carbon steel, this coupler is higher strength cold pressed couplers with easy connections. The workers only need to trained with easy steps to learn how to operate the machine and also how to pressed the couplers and check the pressing quality of couplers.
Rebar Pressed Coupler
Used for Rebar:
HRB400-HRB500 and other equivalent strength rebars
By bags and pallets packing, or wooden case packing as required (25KG smaller packing, 1700KG per pallet)
Free existing samples for checking dimension and quality
15-40 days based on different quantity after receive the prepayment
Xingang, Tianjin Port, Shanghai Port, China.
TT / LC
Coupler Size (mm)
Out Diameter (mm)
Pressing technology is mechanical splicing system designed for the connection of bar ends without threading; the two rebar ends are putting into the coupler each sizes half of coupler length and pressing it by the special pressing mould with pressing machine. After pressing of the coupler to make it connect tighten with the rebar inside of it. These mechanical connections mainly used in the repaired working site which some rebars are leaving outside of the projects without threading or some normal project sides which they do not want to do threading with rebar. It can meet with China standard of JGJ107-2010, UK standard of BS8110, USA standard of ACI318, VN standard of TCVN8163 and other international standards.
2.Features and advantages
a.For repair or retrofit works
b.Fit any cold shear cut bar end.
c.No threading at ends and no reduction of the cross section Ares of the bar.
a. Normal condition
(1). First, put proper height wooden block under the steel bar that going to be connect, then paint rebar locator line on the rebar end, the length should be as half of the coupler length. Paint the check mark which should be 10mm(coupler length less than 200mm) to 15mm(coupler length larger than 200mm) longer than the rebar locator line. Below Drawing (Drawing 1.):
⑵. Put the rebar into the pressed coupler, the coupler should alien with the rebar locator line. Make sure the pressed line of coupler upwards which will be easy to extrusion by extrusion die. See Drawing 2:
⑶. Put the pressing die back to make the clamps open, move the clamp near to the pressing coupler, put the pressing coupler into the clamp, and make sure the pressing die center aims at the coupler pressing line. See drawing 3.
⑷ Extrusion Sequence:
Cold pressing from the middle of the coupler, first press the 2nd line, and then 3rd… After the end line has been pressed, then press the 1st line. Then take out of the wrench. See drawing 4:
⑸ Put another rebar into the other side of coupler see drawing 5, the extrusion pressing sequence is same as Drawing 4.
b. Construction Site Operation- Vertical or Oblique cold Extrusion Operation:
(1). For Vertical coupler connection still needs to paint the rebar locator line in order to check whether the vertical bars are put in to the coupler with correct length. See drawing 6.
(2). Put the half finished pressing coupler and rebar onto the vertical rebar ends that going to be connected (to the rebar locator line on the vertical bars). See drawing 7.
Drawing 6 Drawing 7
(3). Fixed the bottom steel bar, hanging the Chain hoist and then hanging the extrusion clamp, unload of pattern die(mother mold) and put the extrusion clamp onto the coupler and then install the pattern die(mother mold). Pulling hoist chain to adjust the height of extrusion clamp, and then press the coupler by correct order
(4). When stop operation or get off work, the clamps should be put down in safe place in case the damage to clamp and pipes.
Couplers are produced by the raw material of 16Mn, Special raw material for cold pressing couplers which can keep pressing without crack and also keep the enough strength for rebar mechanical connection requirement.
C ：0.13～0.19 Si ：0.20～0.60 Mn ：1.20～1.60 Cr≤0.30 P≤0.030 S≤0.030 Ni≤0.30 Cu≤0.25
Mechanical Properties: Yield strength≥ 315MPa, Tensile Strength: ≥470MPa
c.Coupler Tensile strength comparison with common Splicing standards for Main sizes of 16mm, 20mm, 25mm, 32mm, and 40mm.
Thread larger Dia (mm)
Coupler Cross section area (mm2)
16Mn Min Tensile Strength (N/mm2)
Coupler Load (KN)
Rebar cross-section area (mm2)
BS 8110 22.214.171.124.2 108% Fy, with 500 rebar load(KN)
ACI318 126.96.36.199 125%Fy(Type 1) with 500 rebar load(KN)
Coupler Load(KN) with BS 8110, ACI 318 requirement Remark
Through over 10 years' development, BARTECH is now well-known as one of the leading manufacturers and suppliers of higher strength cold pressed rebar coupler for high grade rebars with raw material 20# steel or 16mn raw material in China. Our factory is specialized in offering higher strength, cost effective and easier fixing products made in China for customers. Please rest assured to buy or check the quotation.