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A C-shaped lifting attachment that reaches sideways into an opening – above all into coils, bundles and reels. Because the load hangs on one side, the centre of gravity has to be set via a sliding suspension, or the hook tilts. Sizing is not by weight alone but by the bending moment in the arc and the surface pressure at the contact.
A C-hook consists of a lower carrying arm that enters the eye of the coil, a vertical back and an upper arm with the suspension. The coil rests on the carrying arm with its axis horizontal and is carried by shape. The hook is inserted from the side, raised and withdrawn at the destination – without slings and without anyone having to reach for the load.
The load hangs on one side of the back. For the hook to hang level when loaded, the suspension must be above the combined centre of gravity of hook and coil. Unloaded, however, the centre of gravity is elsewhere – without compensation the empty hook would tilt sharply backwards and could not be inserted into the coil.
This is solved by a counterweight on the back that keeps the empty hook roughly level, or by an adjustable suspension. With widely varying coil widths and weights, the attitude has to be verified for the least favourable case.
The back is loaded in bending: the moment is coil weight times the distance from the back to the coil’s centre of gravity. Added to this are bending in the carrying arm and pressure at the saddle. The inner wraps of a coil are delicate; the saddle is therefore rounded and often padded so that the edges of the wraps are not crushed.
C-hooks are load lifting attachments under EN 13155. Working load limit and dead weight are marked on the hook, and the operating instructions state the permissible range of coil width and inside diameter.
Most incidents arise not from overload but from incorrect pick-up.
The C-hook is the simple solution where there is room beside the coil for insertion. If the coils stand close together, coil tongs grip from above over both end faces. For coils with a vertical axis, tongs with an internal grip or magnets are used; for slit strip and rings, mandrels or multi-arm hooks.
What Entracon offers here is on the matching page.
See what we offer| Parameter | Meaning |
|---|---|
| Working load limit | greatest permissible load, excluding the dead weight of the hook |
| Dead weight | adds to the load on the hoist |
| Usable arm length | determines the greatest coil width |
| Minimum inside diameter | arm and saddle must fit into the coil eye |
| Clear height in the throat | limits the outside diameter of the coil |
Because the combined centre of gravity shifts with the load. A counterweight or an adjustable suspension compensates; a slight tilt of the empty hook is normal and makes insertion easier.
No. The C-hook carries by shape only when the coil axis is horizontal. Other lifting attachments are intended for upright coils.
Yes. As a lifting attachment it is subject to periodic inspection by a competent person – in Germany customarily at least once a year. The main points are deformation, cracks at the transitions, the suspension and the condition of the saddle.
One short conversation usually settles more than three quotations. Call or write — you will reach an engineer directly.
Start typing – for example “balancer”, “SAP” or “pipe stress”.
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