Safe use of chain slings

The use of work equipment such as high-strength chain slings is often taken lightly, resulting in safety risks being accepted. DIN EN 818, DIN EN 1677 and other national and international regulations governing the use of chains must be observed. We will show you how to use chain slings safely to ensure the safety of your employees.

Correct use and installation

People who work with high-strength lifting gear must know how to use them safely and what to look out for in practical use. Incorrect installation or handling of chain slings can lead to material damage and personal injury, possibly fatal.

The installation of high-strength chain slings must be carried out by authorized persons who have the necessary expertise. They must also be familiar with and observe the special assembly and labeling instructions. Slings must be inspected regularly. We are happy to assist you with this! You can find more information on this in our service area.

Chain slings may only be used for lifting, transporting and lowering loads.
Chain slings must be stored in a dry place.
The assembly of chains and components of different quality classes is not permitted. (GT 8 / ENORM 10 / Star-Alloy).
Each sling chain must be assembled using original components with the manufacturer’s mark “H” and in accordance with the assembly instructions.
Before use, the sling chain must be checked for visible damage and functionality.
Each chain sling must be fitted with a label in accordance with the EC Machinery Directive 89/382 EEC, Annex IIA. Minimum information includes chain dimension Ø, number of chain strands, max. load capacity taking into account the angle of inclination, manufacturer’s mark, CE stamp and year of manufacture.

Safety instructions

Each user must keep an overview (card index) of all chain slings in use and update it continuously. Inspections, repairs, etc. must be entered.
Always use the appropriate chain sling for the lifting operation, whereby the working load limit (WLL), the maximum horizontal slinging width and the angle of inclination must always be within the permissible tolerance range. Observe special instructions for asymmetrical loads.
The suspension ring must always be able to move freely in the crane hook.
Never place the load on the point of the hook but always at the base of the hook.
Special suspension rings must be selected for large crane hooks.
Chains must be protected from sharp corners and edges.
Never place a load on twisted or knotted chains.
The chains can be shortened using the integrated shortening pockets – without reducing the load capacity.

Use under extreme conditions

Chain slings that are permanently used in seawater or other humid environments must be inspected regularly or before each use for possible corrosion marks.
Direct use in galvanizing plants is not allowed.
Electrogalvanizing or coating is not permitted without the manufacturer’s consent.
If you have any questions regarding use under extreme conditions, please contact the manufacturer.

Assessment of chains and chain components

Temperature effects

The load capacity of chain slings is affected by temperature as follows:
Temperature of the chain sling -> Reduction of the load capacity

from -40° to 200°C -> no reduction
from +200° to 300°C -> 10% reduction
from +300° to 400°C -> 25% reduction

At normal temperature, the chain sling regains its full load-bearing capacity. Chain slings should not be used outside the specified temperature ranges.

Inspection and repair of chain slings

Chain slings in use must be inspected at least once a year by an expert in accordance with DGUV 109-017.
The period is shortened under harsh operating conditions.
After 3 years at the latest, chain slings must be tested for cracks or undergo a test load with follow-up inspection. The crack test must only be carried out and documented by specially trained persons in accordance with DIN EN 437.
Chains with bent or damaged links must be replaced. The same applies to deformed suspension rings, bent hooks or other damaged components.
The high-strength chains have been adjusted in comparison to the nominal chain diameter. The chain must be discarded if the average chain diameter, measured in 2 directions, is 10% below the nominal chain thickness.
Overloaded chain slings must be discarded.
Be sure to also check the respective connecting bolts and pins for condition, wear and damage.
It is forbidden to carry out welding on high-strength and tempered slings.
Only use original spare parts for repairs.
Please contact us directly for further regulations and conditions