Cargo Handling Instructions
22 November 2024
The following principles should be applied when securing in the transverse direction:
- When the stow of cargo consists of multiple layers of groups of steel plates, pairs of loop lashings have to be applied at least at two different levels.
- Several layers of plates can be loop-lashed together. The rule-of-thumb is that half of the layers are loop-lashed together. For example, if there are eight layers of steel plates, four of them are loop-lashed together in the bottom and four in the top. If the number of layers is uneven, the bigger amount is to be secured by the bottom loop-lashings.
- The number of loop lashings is to be determined based on the weight of the layers of cargo they encircle as well as the weight of any layers stowed on top of it, see dimensioning tables below.
WEB LASHING - MSL 2.5 TON
| Friction factor | Secured cargo weight for each loop lashing pair (MSL 2.5 ton) |
|---|---|
| μ = 0.3 | 7.5 ton |
WEB LASHING - MSL 5.0 TON
| Friction factor | Secured cargo weight for each loop lashing pair (MSL 5.0 ton) |
|---|---|
| μ = 0.3 | 15 ton |
CHAIN LASHING - MSL 7.5 TON
| Friction factor | Secured cargo weight for each loop lashing pair (MSL 7.5 ton) |
|---|---|
| μ = 0.3 | 22.5 ton |
4. In case groups are loaded in several sections after each other in the longitudinal direction, each section shall be secured with at least 2 pairs of loop lashings.
Example of cargo in multiple layers. Four of the loops lashing pairs encircle the four bottom layers and two pairs of half loop lashings encircle the four top layers