Cannot display less than 240 pixel width device

Container Lifting Lugs for Side Loaders

This popular method, of lifting containers, incorporates transverse mounted hydraulic arms integral with a lorrie chassis. It uses a pair of two legged slings attached to the tip of lifting lifting arms whilst the free ends are engaged with the end corner fitting apertures with suitable lifting lugs, preferably self retaining types such as the Preston Shoe. The benefit being, that once coupled, they can confidently be relied upon on to remain in situe during a lift and not to fall free.
This popular method, of lifting containers, incorporates transverse mounted hydraulic arms integral with a lorrie chassis. It uses a pair of two legged slings attached to the tip of lifting lifting arms whilst the free ends are engaged with the end corner fitting apertures with suitable lifting lugs, preferably self retaining types such as the Preston Shoe. The benefit being, that once coupled, they can confidently be relied upon on to remain in situe during a lift and not to fall free.
 
This popular method, of lifting containers, incorporates transverse mounted hydraulic arms integral with a lorrie chassis. It uses a pair of two legged slings attached to the tip of lifting lifting arms whilst the free ends are engaged with the end corner fitting apertures with suitable lifting lugs, preferably self retaining types such as the Preston Shoe. The benefit being, that once coupled, they can confidently be relied upon on to remain in situe during a lift and not to fall free.
 
Sole Distributer Solid Swivel for enquiries sales and repeat orders:
UK 01384 636421 Intl. 441384 636421
All other enquiries UK 01772 652898 Intl. 441772 652898

Sling geometry when End Lifting

End Lifting sling angle range for Series 1 Containers.

The sling geometry for single point end lifting is effective over an angle range between 68° and 72° typically at 70°. The sling arrangement determines the head room and normally do not make contact with the end face of container but the top lifting point may be below top of high cube units and with some machines, may make contact with the end of container without being a problem.

 
For the sling assembly, the vertical distance T from aperture center (For Preston Lugs) to top lifting point in terms of sling angle α is:
T = ( P/2) tan α
 
Clearance h between lifting point and top of container is:
h = T + 68 - H
 
 
Angle
T
8ft
8ft 6in
9ft 6in
α
mm
2.44m
2.6m
2.9m
68°
2869
431
279
-27
70°
3177
739
586
281
72°
3550
1112
959
654
Clearance h above top of container.
Negative values are below top.
Chain lengths not given because of range of ancilliary devices available.

Limiting Gross Weights when END lifting ISO containers

The limiting Gross Weight Rg is determined from sling angle and Working Load Limits of 8.5 Ton or 12 ton for these lugs. The resulting Rg must not be exceeded and these are shown in general limiting lifting force diagrams for Side Lifting over the typical angle range 68° to 72° when end lifting containers with uniformly distributed payload, these give the maximum permissible gross weights. When eccentrically loaded the result give LOWER limiting gross weights owing to additional sling forces at the heavy end. The Gross Weights for the two loading cases of uniform and eccentric payloads are given below and must either equal or preferably exceed the MGW of unit being lifted.

Limiting Lifting weights when sling forces are at their WLL over sling angle range
68° to 72° for Uniformly Loaded Containers

End lifting uniformly loaded containers when lugs are fully loaded at their WLL

Central C of G
Angle
α
Rg for 8.5Ton
Rg for 12Ton
68°
31.52
44.50
70°
31.95
45.10
72°
32.34
45.65
Maximum Rg for both Lugs
over sling angle range

End lifting eccentrically loaded containers when lugs are fully loaded at their WLL

The Lifting Cycle describes the loading experienced during a lift, the nature of end lifting precludes an active "live load" component of any significance owing to hydraulic lifting system. When end lifting, the two arms normally operate independently, and container is usually held level so the problems associated with single point side lifting of eccentrically loaded containers do not arise.
 
Offset C of G
Angle
α
Rg for 8.5Ton
Rg for 12Ton
68°
28.66
40.50
70°
29.05
41.00
72°
29.40
41.50
Maximum Rg for both Lugs
over sling angle range
When lifting eccentrically loaded containers the limiting Gross Weight is always lower than that for uniformly loaded containers.