Grade 80 Chain Sling EN 818-4

Item No.: 5030
H-Lift grade 80 chain sling is made to EN 818-4 specification with 1-leg chain sling, 2-leg chain sling, 3-leg chain sling, 4-leg chain sling.
G80 chain slings made of alloy steel are the most suitable for overhead lifting of heavy loads in any facility.
Description Safe Use of Chain Sling Grade 8 Chain Sling EN 818-4
Description
H-Lift Grade 80 Chain Sling

Chain sling is an assembly consisting of a chain leg or chain legs joined to upper and lower terminals for attaching loads to the hook of a crane or other lifting machine.

H-Lift Grade 80 chain slings and lifting slings are ideal for applications when extra strength and durability is required. Not only are chain slings more durable, temperature-tolerant, and cut-resistant than polyester webbig slings or round slings, there are also adjustable and customized options.

 

H-Lift grade 80 chain sling or alloy chain sling is made to EN 818 specification with 1-leg chain sling, 2-leg chain sling, 3-leg chain sling, 4-leg chain sling for your selection.

Standard: EN 818-4,  AS/NZS 3775, AS/NZS 3776, B 30.9(SlingS), B 30.20(Below the hook lifting devices)

Grade 8 Alloy Chain Sling, H-Lift China


Grade 80 Chain Sling
G80 Alloy Chain Sling
Lifting Chain Sling
In this case of multi-leg slings, the angle between the legs is critical, the actual tension on each leg increases when the angle between the legs increases as shown in the diagram opposite. For this reason all general purpose chain slings are given a rating based upon use at 90° inc. angle. The included angle between the legs should never exceed 120°.

The distance between the crane hook and the load is known as the “headroom”. If a specific headroom is required, the “Reach” of the chain sling must increase as the angle between the legs increases as shown opposite.
 
The reach of a chain sling is the distance between bearing points of the upper and lower terminal fittings. The distance, commonly known as the “bearing to bearing” should be quoted when ordering slings. Shortening clutches may be fitted to a sling, making the reach adjustable, hence increasing the versatility of the sling.
Safe Use of Chain Sling

ALWAYS:
• Store and handle chain slings correctly.
• Inspect chain slings and accessories before use and before placing into storage.
• Follow safe slinging practices, as given overleaf.
• Fit slings carefully, protect them from sharp edges and position hooks to face outward from the load.
• Apply the correct mode factor for the slinging arrangement.
• Back hook free legs onto the master link.


NEVER:
• Attempt to shorten a sling leg other than by means of an integral chain clutch.
• Force, hammer or wedge chain slings or their fittings into position.
• Lift on the point of a hook.
• Expose chain slings to chemicals, particularly acidic conditions, without consulting the supplier.
• Use chain slings at temperatures above 200°C or below minus 40°C without consulting the supplier.
• Shock load chain slings.


Selecting the Correct Sling
Chain slings are available in a range of material grades, sizes and assemblies. Select the slings to be used and plan the lift taking the following into account:
Type of sling to be used - endless, single, two, three or four leg.
Capacity - the sling must be both long enough and strong enough for the load and the slinging method.
Apply the mode factor for the slinging method.
If adjustment of the leg length is necessary select a sling with chain shortening clutches.
For use at temperatures exceeding 200°C or below minus 40°C refer to the suppliers instructions.
Where slings may come into contact with chemicals, particularly acids or acidic fumes, consult the supplier.
In the case of multi-leg slings the angle between the legs should not be less than 30° or exceed the maximum marked.
Multi-leg slings exert a gripping force on the load which increases as the angle between the legs increases and this must be taken into account.


Storing and Handling Chain Slings
Never return damaged or contaminated slings to storage. They should be dry, clean and protected from corrosion.

Store chain slings on a rack and not lying on the ground. The storage area should be dry, clean and free of any contaminates which may harm the sling.
Do not alter, modify or repair a chain sling but refer such matters to a Competent Person.
Never galvanise or subject a chain sling to any other plating process without the express approval of the supplier.


Using Chain Slings Safely
Do not attempt lifting operations unless you understand the use of the equipment, the slinging procedures and the mode factors to be applied.
Do not use defective slings or accessories.
Do not force, hammer or wedge chain slings or fittings into position; they must fit freely. Check the correct engagement of fittings and appliances.
Position hooks of multi-leg slings facing outward from the load. Do not lift on the point of the hook and ensure that the chain is not twisted or knotted.
Back hook free legs to the master link to avoid lashing legs which might accidentally become engaged or otherwise become a hazard.
Take the load steadily and avoid shock loads.
Do not leave suspended loads unattended. In an emergency cordon off the area.


In-service Inspection and Maintenance 
Maintenance requirements are minimal. Keep chain slings clean and protect from corrosion.
Regularly inspect chain slings and, in the event of the following defects, refer the sling to a Competent Person for thorough examination: illegible markings; distortion of fittings; worn, stretched, bent or twisted links; ineffective safety catches; cuts, nicks, gouges, cracks, corrosion, heat discolouration or any other defect apparent to the chain or fittings.

Grade 8 Chain Sling EN 818-4
The Machinery Directive stipulates that where chain with welded links is used for lifting accessories it is to be of short line type and for the purposes of this standard this is chain having a ratio of nominal pitch to nominal size of 3:1.

This European Standard specifies the requirements related to safety, methods of rating and testing of single-, two-, three-, four-leg and endless chain slings assembled by:

a) mechanical joining devices

b) welding

using short link grade 8 medium tolerance lifting chain conforming to EN 818-2 together with the appropriate range of components of the same grade.


chain sling
assembly consisting of a chain leg or chain legs joined to upper and lower terminals for attaching loads to the hook of a crane or other lifting machine.

nominal size of chain sling

The nominal size of short link chain, in millimetres, used in the manufacture of the chain sling.

nominal grade of chain sling
For the purpose of designation in accordance with annex C, is the same as the grade of the short link chain used in the manufacture of the chain sling i.e. 8.

master link
A link forming the upper terminal of a chain by means of which the chain sling is attached to the hook of a crane or other lifting machine.

length of a leg
For a finished chain sling, is the length from the lower bearing point of the lower terminal to the upper bearing point of the upper terminal.

intermediate master link
A link used to connect one or two legs of a sling to a master link.

lower terminal
A link, hook or other device fitted at the end of a leg of a sling, remote from the master link or upper terminal.

mechanical joining device

A means of connection which does not depend on welding. It may be integral with a component or be a separate component.


joining link

A welded link fitted to the end of a chain to connect it either directly or through an intermediate link to an upper or lower terminal or intermediate master link or in the case of an endless chain sling to the other end of the chain.


intermediate link
A welded link used to form a connection between the terminal and the joining link fitted to the chain.

manufacturing proof force (MPF) of a chain sling
A force applied during manufacture as a test to the whole chain sling or a force applied as a test to a section of chain sling.

working load limit (WLL) of a chain sling
The maximum mass which a sling is authorized to sustain in general lifting service.

master link assembly
assembly consisting of a master link together with two intermediate master links.

Working Load Limits EN 818-4

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