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PRODUCT MANUAL

HAKI COUPLERS 

© HAKI AB 2013

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HAKI user´s manualsUniversal, Light, Continental, Ram, Stair Tower, Block Bracket and Weather protection.

© Copyright HAKI AB, 2013The reproduction of text and pictures/illustrat ions without HAKI’s permission is prohibited.

Important informationHAKI’s product liability and erection instructions apply only to scaffolds that areentirely composed of components that have been made and supplied by HAKI.

HAKI’s type examination certicate applies only to scaffolds whose materials,dimensions and design accord with those specied in the documentation uponwhich this certicate is based.

HAKI’s scaffold systems must not be erected using components of makes otherthan HAKI or be connected to scaffolds of makes other than HAKI. In such cases,a special study of load-bearing capacity must be carried out. However, HAKI hasno objection to the customary addition of scaffold tubes and approved couplersto the scaffold.

Adding components from different suppliers may invalidate the insurance cover.

For scaffold structures that are not covered by these erection instructions, pleasecontact HAKI’s technical department.

HAKI reserves the right to make technical modications on a continual basis.

Forces and dimensions1000 N = 1 kN ~ 100 kg10 N ~ 1 kgAll measurements in mm

HAKI colour code

Horizontals and diagonals are marked with their nominal sizes (bay sizes) and acolour code. The marking is a useful means of identication when erecting andhandling the scaffold material.

  564 1050 1964 3050

  700 1250 2050 3650

  770 1550 2500 4050

  1010 1655 2550

The latest versions of HAKI user’s manuals can be downloaded from our website,

www.HAKI.com.

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Product manual HAKI Couplers, right angle coupler RA 48x48 andswivel coupler SW 48x48.

Type examination and assessment have been carried out by the SP Technical ResearchInstitute of Sweden.

Use1. Couplers with the values presented above, are only intended to be used for steel

tubes with diameter 48.3 mm, thickness ≥3.2 mm and yield strength of≥235 N/mm², alternatively thickness ≥2,7 mm and yield strength of ≥315 N/mm²;or Aluminium tubes of diameter 48.3 mm, thickness ≥4.0 mm and yield strength of

≥95 N/mm².2. For specied values of capacity and stiffness, see SS-EN 74-1. Note that the values

according to SS-EN 74-1 are characteristic values, to be transformed to permissiblevalues they have to be divided by 1.65.

3. The couplers shall be tightened with a torque of 50 Nm.

4. The screws of the couplers shall be lubricated to minimize the internal friction.

5. Damaged couplers may not be used.

For conguration BB according to SS-EN 74-1, the used couplers have to be identical.

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DESCRIPTION

Right angle coupler RA 48x48 item No. 2048010

The parts of the couplers are hot-dip galvanized with a zinc coating of average thickness50 µm. T-screws and nuts are yellow-chromated with a chromate layer of average thickness15 µm.M14 threads are used for T-screws and nuts. Jaw width: 22 mm.Type examined in accordance with EN 74-1:2005. Right angle coupler (RA) Class B.

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DESCRIPTION

Swivel coupler SW 48x48 item No. 2048011

The parts of the couplers are hot-dip galvanized with a zinc coating of average thickness50 µm. T-screws and nuts are yellow-chromated with a chromate layer of average thickness15 µm.M14 threads are used for T-screws and nuts. Jaw width: 22 mm.Type examined in accordance with EN 74-1:2005. Swivel coupler (SW) Class B.

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Examples of use.

  Latt ice beam in standard Wall anchors

Type of coupler Item No. Permissible vertical load when used for connectingbridging ledgers, standardsetc. [kN/coupler]

Permissible load when usedfor connecting, for example,anchorages where tensionor compression loads of thetube may occur[kN/coupler]

Right angle couplerRA 48x48

2048010 12 8

Swivel couplerSW 48x48

2048011 7 5

Permissible loads

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SAFETY CHECKLIST

  1. Support ing surface checked with regard to load-bearing

capacity

2. Distance to wall or similar as short as possible

  3. Scaffold aligned correct ly horizontally and vert ically

4. Components correct ly tted and locked

  5. Bracing correct ly tted  6. Anchoring with right number and placing of ties

  7. Decking correct ly tted

  8. Guardrail with toeboard if drop is two metres or more

  9. Suitable means of access to scaffold

10. Scaffold erected for correct class of load

HAKI AB • SE-289 72 Sibbhult, Sweden • Tel +46 44 494 00 • Fax +46 44 494 72info@haki.se • www.HAKI.com