leading scaffolding coupler supplier

Leading Supplier of Scaffolding Coupler

Scaffold couplers, which are used to connect steel pipes when building scaffolds, and connectors between steel pipes and other structures, are widely used in various types of scaffolding projects . There are usually European standards and Japanese standards.  EK as China leading scaffolding coupler supplier, focus on introducing European standard scaffold fasteners to meet the use of the following countries, Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Scaffolding Couplers Types

  • Right Angle Scaffolding Coupler
  • Sleeve Scaffolding Coupler
  • Swivel Scaffolding Coupler

According to different sizes

Double

Swivel Coupler

48.3*34

48.3*34

34*34

34*38

48.3*38

48.3*38

38*38

38*42

48.3*42

48.3*42

42*42

42*60

48.3*48.3

48.3*48.3

-

-

48.3*60

48.3*60

60*60

60*76

48.3*76

48.3*76

76*76

86*89

-

48.3*89

89*89

-
 
 
Our scaffolding coupler has obtained many international certificates, such as EN 74-1:2005 and EN 74-1:2005 Clause 7.4.3, etc.
 

Drop Forged Double Coupler

  • Drop Forged Double Coupler in test (Slipping Force)

    In test (Slipping Force)
  • Drop Forged Double Coupler in test (Failure Force)

    In test (Failure Force)

Summary of Results:

No.

Test Item

Test Method
1

Slipping Force

EN 74-1:2005
2

Failure Force

EN 74-1:2005
 

Test Results:

Test Clause

Test Item

Test Requirement

Test Result

Conclusion

 

7.2.1

 

 

Slipping force

△1≤7mm, Fs,5%≥10.0kN

△1=7mm, Fs,5%=15.88kN

 

Pass

 

1mm≤△2≤2mm, Fs,5% ≥15.0kN

1mm≤△2≤2mm, Fs,5%=15.91kN

7.2.2

Failure force

Ff,5%/γR2 ≥30.0kN

Ff,5%/γR2=50.63kN

Pass

Drop Forged Swivel Coupler  Class “B”

Under normal circumstances, it is difficult to reach B grade, but we reached

  • Drop Forged Swivel Coupler  Class “B”In test (Slipping Force)

    In test (Slipping Force)
  • Drop Forged Swivel Coupler  Class “B” In test (Failure Force)

    In test (Failure Force)

Summary of Results:

No.

Test Item

Test Method
1

Slipping Force

EN 74-1:2005
2

Failure Force

EN 74-1:2005
 

Test Results:

Test Clause

Test Item

Test Requirement

(Swivel coupler, Class B)

Test Result

Conclusion

 

7.2.1

 

 

Slipping force

 

△1≤7mm, Fs,5%≥10.0kN

△1≤7mm, Fs,5%=10.6kN

 

Pass

 

1mm≤△2≤2mm, Fs,5% ≥15.0kN

Fs=30kN, △2˂1mm

7.2.2

Failure force

Ff,5%/γR2 ≥20.0kN

Ff,5%/γR2=24.4kN

Pass

Pressed Sleeve Coupler

  • Pressed Sleeve Coupler In test

    In test
  • Pressed Sleeve Coupler After test

    After test

Summary of Results:

No.

Test Item

Test Method
1

Bending Moment Resistance

EN 74-1:2005 Clause 7.4.3
2

Slipping Force

EN 74-1:2005 Clause 7.2.1
 

Test Results:

Test Item

Test Requirement

Test Requirement 

(Sleeve coupler, Class B)

Conclusion

Bending Moment Resistance

△4=5mm, Mb,5% =1.43kNm

△4=5mm, Mb,5% ≥1.4kNm

Pass

Putlog / Wrapover Coupler

  • Wrapover Coupler In test

    In test
  • Wrapover Coupler After test

    After test

Summary of Results:

No.

Test Item

Test Method
1

Slipping Resistance

BS 1139-2.2:2009+A1:2015 Clause 7 & Annex A.2
 

Test Results:

Test Item

Test Requirement

Test Result

Conclusion

Slipping Resistance

1mm≤△2≤2mm, Fs,5% =1.83kN

1mm≤△2≤2mm, Fs,5% ≥1.04kN

Pass

Girder / Gravlock Coupler

  • Gravlock Coupler In test (Strength test)

    In test (Strength test)
  • Gravlock Coupler In test (Slip test along tube)

    In test (Slip test along tube)
  • Gravlock Coupler In test (Slip test along tube a flange)

    In test (Slip test along tube a flange)

Summary of Results:

No.

Test Item

Test Method
1

Strength test

AS/NZS 1576.2:2016 Appendix L
2

Slip test along tube

AS/NZS 1576.2:2016 Appendix M
3

Slip test along tube a flange

AS/NZS 1576.2:2016 Appendix N
 

Test Results:

Test Clause

Test Item

Test Requirement

Test Result

Conclusion

Appendix L

Strength test

P=30.0kN, neither flange clamp shall show any permanent set

P=30.0kN, neither flange clamp showed any permanent set

Pass

Appendix M

Slip test along tube

P=12.5kN, Slippage ≤ 6mm

P=12.5kN, Slippage<6mm

Pass

Appendix N

Slip test along tube a flange

P=12.5kN, Slippage ≤ 6mm

P=12.5kN, Slippage<6mm

Pass

Board Retaining Clamp

  • Board Retaining Clamp In test

    In test
  • Board Retaining Clamp After test

    After test

Summary of Results:

No.

Test Item

Test Method
1

Failure Force

With Reference to EN 74-1:2005
 

Test Results:

Test Item

Test Result

1#

3#

3#

4#

5#

Fp,5%/γR2

Failure Force(kN)

42.84

38.89

43.60

42.91

40.79

29.8
Right Angle Coupler
Swivel Coupler
Parallel Coupler
Sleeve Coupler Sketch
1/2" carriage bolt
1/2" T Bolt,1/2" Wing NUT,1/2"SF23 H19 and 1/2" SF23 H14
washer and spliting
M12 Eye Bolt and M12 SF19
1/2" Eye Bolt and 1/2 SF22 H19
M14 T Bolt

Width across flats for hexagon nut, And Using Countries

Width

21

United Kingdom and the Commonwealth of Nations

Width

22

USA, Germany and some Eurupean countries

Width

23

Australia

Width

19

Japan, South Korea and some Southeast Asian countries
 
 

 

Bolt Dia.

Width across flats

Height

Width across flats

Height

Width across flats

Height

Hexagon Nut

1/2"

S21

H11

S22

H11

S23

H11

 

 

SF21

H14

SF22

H14

SF23

H14

 

 

SF21

H19

SF22

H19

SF23

H119

 

 

S21

H15

 

 

 

 

 

M14

S22

H11

S23

H11

 

 

 

 

SF22

H14

SF23

H14

 

 

 

 

SF22

H19

SF23

H119

 

 

 

M12

SF19

H9

 

 

 

 

Wing Nut

1/2

 

 

 

 

 

 
  Dia. Effective length / Bolt length Use
T-Bolt 1/2 75-88 United Kingdom and the Commonwealth of Nations
M14 75-87 USA, Germany and some Eurupean countries
M14 98-110 USA, Germany and some Eurupean countries
Eye Bolt 1/2 67-86 United Kingdom and the Commonwealth of Nations
M12 57-73 United Kingdom and the Commonwealth of Nations
M14 70-90 USA, Germany and some Eurupean countries
Spliting End Bolt 1/2 45-82 For Putlog coupler, BRC, etc.
Carriage Bolt 1/2 116-125 For tube external clamp, universal clamp, etc.
85-92
Hexagon Bolt M16 72-80 For Girder Coupler, DF Joint Pin
Flat T-Bolt 1/2 66-76 For Italian couplers
  Thickness Inner / Outer Dia.
Washer 3.5 13-26
5 13-26
According to the design style of different countries,British type, American type, German type, Italian type, Japanese, Korean type, etc.
British type：
American type:
German type：
Italian type：
Japanese, Korean type
Forged scaffolding couplers：
Pressed couplers：
Casting couplers：

Aluminum Scaffold Couplers Video

EK Scaffolding, as scaffold coupler in China, has advanced production equipment for forged couplers and pressed couplers，
All forged scaffolding coulpers use high-frequency electric furnace to heat different specifications of structural steel to 950-1050 austenite state, after 4000KN one-time forging can improver its organizational structure and mechanical properties, thereby improving the plasticity and mechanical properties of the product.

Aluminum Scaffolding Coupler Brochure

Here is brochure of EK scaffolding coupler products. You can see casting and special shaped coupler, pressed coupler, sleeve scaffold coupler and other realeted scaffold products from this brochure.
Download
EK scaffolding coupler products brochure

Why choose EK Scaffolding Couplers

EK Scaffolding company is a China scaffolding manufacturer that started with  couplers. We have 14 years experience in this scaffold industry. Values of EK Scaffolding are professional service, quality assurance and fast delivery.
scaffolding coupler supplier in China
world's top coupler brand
World's top OEM coupler factory brand,  forge and press scaffold coupler all international types
Large delivery
Over 60 containers per month, port of destination customs clearane, home delivery.
Efficient and convenient
L/C, T/T, D/P, forward payment, By Sea, by rail, road transport, Efficient and convenient.
high-grade accessories
All EK scaffold coupler use high-grade accessories, 8.8-grade high-strength screw.

FAQ Of Scaffolding Coupler Products

Scaffolding Coupler
Scaffolding Coupler
Aluminium Scaffolding Ladder
Aluminium Scaffolding Ladder
Ringlock Scaffolding
Ringlock Scaffolding
Scaffolding Walk Boards
Scaffolding Walk Boards
Scaffolding Pipe
Scaffolding Pipe
Cuplock Ledger
Cuplock Ledger
Scaffolding Steel Prop
Scaffolding Steel Prop

Your requirements, our pursuit

Quality, Innovation, Service, Honesty, Responsibility, Efficient, Patience, Diligence

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 （+86）-18102755163/（+86）-18620553640
 （+86）-18102755163

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