Pressing Sleeve Coupler

Higher Strength Cold Pressed Rebar Coupler for High Grade Rebars with Raw Material 20# Steel or 16Mn Raw Material

Product introduction: 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...

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Product details

Product introduction:

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.

Product details

Name:

Rebar Pressed Coupler

Used   for Rebar:

HRB400-HRB500 and other   equivalent strength rebars

Raw   Material:

20#  16Mn

Size:

16mm/18mm/20mm/25mm/28mm/32mm/36mm/40mm

Packing:

By bags and pallets   packing, or wooden case packing as required (25KG smaller packing, 1700KG per   pallet)

Sample:

Free existing samples   for checking dimension and quality

Production   time:

15-40 days based on   different quantity after receive the prepayment

Shipping   Port:

Xingang, Tianjin   Port,  Shanghai Port, China.

Payment   Terms:

TT / LC

Certificate:

ISO/ CE


Coupler   Size (mm)

Out   Diameter (mm)

Length   (mm)

Weight   (kg)

16mm

30

110

0.339

18mm

34

110

0.380

20mm

36

120

0.504

22mm

40

132

0.660

25mm

45

150

1.036

28mm

50

168

1.390

32mm

56

192

2.004

36mm

63

216

2.830

40mm

70

240

4.123

1.Introduction

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.

3.Working  instructions

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.):

                                                                      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:

                                                                      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.

                                                                       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:

                                                                     Drawing 4

⑸ Put another rebar into the other side of coupler see drawing 5, the extrusion pressing sequence is same as Drawing 4.

                                                              Drawing 5

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.

a.Raw material

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

b.Pictures

c.Coupler Tensile strength comparison with common Splicing standards for Main sizes of 16mm, 20mm, 25mm, 32mm, and 40mm.

Size

16

20

25

32

40

OD (mm)

30

36

45

56

70

Thread larger Dia (mm)

20.00

24.00

30.20

38.00

46.00

Coupler Cross section area (mm2)

392.69

565.47

874.09

1328.85

2186.48

16Mn Min Tensile Strength  (N/mm2)

470

470

470

470

470

Coupler Load (KN)

184.56

265.77

410.82

624.56

1027.65

Rebar cross-section area (mm2)

201.1

314.2

490.9

804.2

1257

BS 8110    3.12.8.16.2 108% Fy, with 500 rebar load(KN)

108.59

169.67

265.09

434.27

678.78

ACI318 12.14.3.4 125%Fy(Type 1) with 500   rebar load(KN)

125.69

196.38

306.81

502.63

785.63

Coupler Load(KN) with BS 8110, ACI 318   requirement Remark

Above

above

above

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above

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.

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