Eye Bolts / Swivel Eye Bolts

Standard eye bolts
swivel eye bolts
Various threads available
Hoist rings
Dynamo or collared

 

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Description

There are many types of eye bolts available today, the most common type are for bolting to a specific surface to provide a removable  fixing point, though some are designed for welding to the surface to create a permanent anchor point for lifting and lashing equipment; also falling into this category are eye nuts and bow nuts which screw onto a threaded bolt and therefore more easily removable; there are eyebolts with a fixed eye and some with swivel eyes, some have full rotation with an added load ring pivoting point, this type of swivel eye bolt enables lifting at virtually any angle;  Some eyebolts encompass relief lugs which provide two or four bolts, and therefore additional safety.

Choosing the correct kind of eye bolts;

An important point to consider is the weight, size and shape of the load to be lifted, as well as the number of lashing points that will be required; the angle of inclination of the sling to be used is also of major importance, as slings used at various angles will affect their safe lifting capacity ratings. There must be enough lifting points to provide suitable suspension for the load, and the total safe working load limit must never be exceeded. You will also need to consider where the eyebolts will be fixed, and ensure the structure can take the weight, and can be drilled to create a proper and secure thread hole for the eyebolt to be screwed into. The eyebolts will need to be positioned in a way so that the sling system and the structure will allow a smooth and safe lifting procedure. The safe working load limits that are marked on the eyebolt are intended for an in-line pull, unless specified otherwise.

Any type of suspension/anchoring equipment should be chosen with care to save time, money and possible safety issues at some point down the road. If you need a suspension point for a straight or inline lift then a standard type of eyebolt will probably suit best; but you may need to use a suspension point to lift at any angle, if so then a swivel eyebolt will be required. Obviously pick one with a suitable capacity rating for the load that it will be lifting. It is a good idea to pick an eyebolt which will suit all types of lifting slings too, to alleviate the need for adding additional items which can be unsafe and insecure.

Range and suitability

Suitable for use in a variety of applications and environments, our range of eye bolts can be used alongside various types of lifting gear. We can supply a range of eye bolts with varying characteristics to suit different uses, including long shank eye bolts, dynamo eye bolts and collared eye bolts. All of these are available in metric or BSW sizes ranging from M6 to M27, so whatever your requirements, we can provide a product to match. We can also supply eye bolts which feature oval or egg shaped reevable links, in addition to supplying eye nuts and bow nuts and a range of swivel eye bolts with 360 degree rotation and pivoting link for variable lifting angles these are ideal when using hoisting devices on mobile gantry or jib cranes.

Materials used

Manufactured from drop forged high tensile steel, our standard eye bolts are hardwearing, durable and tough enough for heavy lifting work in any environment. These are self-coloured as standard, but if required they can be electro-galvanised or hot dipped galvanised at your request. We provide a works certificate with every eye bolt, as well as an EC declaration of conformity if required.

Safety

If at any time eyebolts are used in a situation where shock loading, twisting or vibrations may take place the eyebolts security could suffer by starting to untwist from its hole, and so it is highly recommended to further secure the bolts, this is made possible by the use of an appropriate securing adhesive or use crown nuts with a key or counter nut etc.

When using any type of eyebolt there are some basic procedures which must always be followed, they should always be inspected prior to use to make sure that; all markings are readable; they are free from cracks, corrosion and gouges etc; the thread is undamaged; and they are screwed in tightly, and seated correctly; eyebolts which swivel should do so smoothly.  Always check installation points are suitable. Single points should always be directly in line with the centre of gravity, multiple anchor points should be arranged evenly / symmetrically about the centre of gravity and each point must be in the same lifting plane.  Additionally it is required that eyebolts are inspected and tested at regular intervals, usually six monthly, this is because these products could be affected by wear, misuse and overloading etc. This should be done even more frequently if the eyebolts are used in severe operating conditions. Cranes Direct can arrange full inspection and repair services on all lifting equipment, check out our crane services page.

 

 

 

Safe Use of Eyebolts PDF

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