Details

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Fitting for Chain Sling



EN818-4:1996




6.1.2 Manufacturing Proofforce Factors

Sections of slingassemblies shall be subjected to manufacturing proofforces in kilonewtons, at least equivalent to loads calculated by multiplying the working load limit of the relevant chain size by the factors given in table 4.
 

Table 4. Manufacturing Proofforce Factors
Section to which manufacturing proofforce is applied (see figure 6)	Manufacturing proofforce factors
MPF1 MPF2 MPF3 MPF4	2,5 3,5 4 5,25

6.1.3 Post-Test Examination

After completion of the manufacturing proofforce test, when required (see 6.2.1a and 6.2.2), and the removal of the force, the sling shall be examined by a competent person. Any faulty chain or component shall be replaced, and the sling re-tested and re-examined by a competent person.


6.2 Final Examination
6.2.1 Slings joined by Mechanical Device

Following completion of the assembly of the sling, it shall either:
a) be subjected to the manufacturing proofforce(s) and
subsequently examined by a competent person inaccordancewith 6.1; or
b) be examined visually by a competent person to ensurefreedom from defects provided that the chain and each component have been certified as having been subjected to the manufacturing test as specified in:

1)EN 818-1 and EN 818-2 for short link chain of grade8;
2)prEN 1677-1 to prEN 1677-4 for components of grade 8 for chain slings (see 5.1).