Page 30 - Green Pin Product Catalog

SHACKLES Additional markings ®

It is possible to add additional stamping on Green Pin shackles, but make sure that you follow the
recommendations below. If the recommendations are followed, the performance of the shackles is
guaranteed.
- permanent identification marks or symbols are to be made by dot peen marking or with stamps having
rounded profiles (low-stress stamps);
- laser markings are allowed as long as the heat of the laser does not influence in a negative way the
material structure and properties. The laser marking must be legibly and indelibly marked in a place where
the markings will not be removed by use;
- the number of marks on a shackle is to be kept to a minimum;
- the use of fractions and oblique strokes is to be avoided and a dot or hyphen is preferable to a dividing line;
- values of WLL are, generally, to be marked to one place of decimals (except for 0.25 and 0.75) up to 100 t
and in integers thereafter. The word “tonnes” may be abbreviated to “t”;
- recommended sizes of marks are
∞ Diameter of the part to be marked > recommended size of the mark;
∞ less than 12.5 mm > 3.0 mm;
∞ 12.5 to 26 mm > 4.5 mm;
∞ over 26 mm > 6.0 mm.

Typical arrangements of marks can be found in the following illustrations.

No marking on the
1 crown (shaded area)
Recommended area
for additional stamping

No marking on the
pin (shaded area)

Recommended area
for additional stamping

Temperature

If extreme temperature situations occur, the following load reductions must be taken into account:
Reduction for elevated temperatures
Temperature New Working Load Limit
up to 200 °C 100% of original Working Load Limit
200 - 300 °C 90% of original Working Load Limit
300 - 400 °C 75% of original Working Load Limit
> 400 °C not allowed

The rating of shackles to EN 13889 assumes the absence of exceptionally hazardous conditions.
Exceptionally hazardous conditions include offshore activities, the lifting of persons and the lifting of
potentially dangerous loads such as molten metals, corrosive materials or fissile materials. In such cases
a competent person should assess the degree of hazard and the WLL should be reduced accordingly.

Inspection

Shackles must be regularly inspected in accordance with the safety standards and regulations given in the
country of use. This is required because the products in use may be affected by wear, misuse, overloading
etc. which may lead to deformation and alteration of the material structure. Inspection should take place
at least every six months (follow the local rules in the country of use) and more frequently when the shackles
are used in severe operating conditions.

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