Container Modification
With the great range of containers for different commodities now available, it is unlikely that modified
closed containers will be utilized in the main trades. However, modified units may be found in some of the
less sophisticated trades using techniques that allow the carriage of dry and liquid bulk cargoes in such
units.
With either dry or liquid cargo, the installation of a temporary bulkhead in the way of the doors to support the
load is required and, for some types of dry bulk, the lining of the container with plastic or similar sheeting.
Liquids are contained in a bag made of polyurethane, nitrile, butyl, platilon, hytrel, hyperplastic or nylon film
depending on compatibility with the product to be carried.
Bulk products carried in a closed container might include malt, grain, seed, polythene granules, chemically
inert powders, brake fluid, detergent, fruit juice, wine, non-hazardous oils, sodium silicate, fatty acids and
maple syrup amongst many others.
Before loading bulk in a closed container, it must be ascertained that the unit is structurally fit for this
type of cargo. For example, some plywood-sided containers may suffer sidewall deflection to the extent
that the container will foul adjacent units or the cell guides. In extreme cases the container may rupture.
Avoid isolated tower of containers remaining on deck
If any other irregularities are found in the stowage plan, they must be corrected by liaising with the Terminal planner / Central planner or local agent.
A good example would be an isolated tower of 4 or 5 high remaining on deck after all adjacent containers have been discharged.
At Masters discretion, such stowage may need correction by shifting some containers of the tower down on the deck or elsewhere.
More factors should be taken into account before accepting a containership cargo stowage plan :
Stacking Weights
Lashing strength
Dangerous goods stowage and segregation
Reefer Container Stowage
Out of Gauge Container Stowage
Special Container Stowage
20 or 40 or 45 Compulsory Stowage Locations
Irregular Stowage of Containers
Over-stow of Containers
Hatch Cover Clearance (High cube containers Under Deck )
Summarized below are some basic container transport procedures. These procedures are only indicative, not exhaustive in nature and one must always be guided by practices of good seamanship.
Safe cargo stowage and planning
When considering acceptability of a container cargo stowage plan, some basic check items, procedures / guidelines concerning cargo stowage shall be taken into account . Read
more...
Safe Cargo operation
On Arrival Port, Prior Commencing Cargo Operation
1) The composition of cargo watch personnel shall be decided and duties well understood.
2) All personnel involved in the cargo watch shall be briefed regarding the expected operations and provided with a Cargo Discharge Plan
. Read more...
Guidelines and procedures concerning containership hull strength & stability
When considering acceptability of a container cargo stowage plan, the following procedures/guidelines concerning hull strength & stability shall be taken into account:
a) Draft, Trim and Heel Draft restrictions at berth, approaches, passage and next port shall be taken into consideration and vessels maximum draft must be maintained within the applicable restriction. Read more...
Procedures for dangerous cargo handling and documentation
Handling dangerous cargo requires special care due to the inherent hazardous nature of the cargo and applicable carriage regulations.
Read more...
Procedures for reefer cargo handling
Reefer containers require special care after they are loaded on board ship. These containers need to be supplied with power, monitored closely for proper function and repaired as required in case of malfunction.
Read more...
Handling breakbulk,Out of gauge and open top containers
Break bulk cargo is usually stowed on flat racks and platforms. It is important to confirm that the break bulk cargo itself is properly secured onto the Flat rack or Platform prior loading on board.
Read more...
Containership operation: 2 in 1 (Two in One) Loading
The term 2 in 1 operation is normally used when two 20feet units are loaded in one 40feet bay underdeck. When such loading operation is being conducted, it must be ensured that the terminal staff is aware of the vessels lashing system.
Read more...
Containership operation: On Deck Loading of 20feet Containers
20feet containers loaded on deck must be spaced apart in order to leave room for lashing each container on the fore and aft ends.
Read more...
Containership operation: Opening closing hatch covers
Hatch cover operations are frequently carried out on board container ships but due care is necessary to prevent damage by incorrect operation.
Read more...
Containership operation: Cargo lashing
Regular inspection and maintenance of ships cargo securing devices must be carried out. These would include routine visual examination of components being utilized, lubrication of securing devices, repair of damaged securing devices and separating out and rejecting damaged/unusable securing devices.
Read more...
Containership Cargo securing
When containers are carried on deck, the ship is required to be approved for that purpose and the containers themselves are secured with twistlocks and lashings. These usually consist of steel rods and turnbuckles.
Read more...
Containership Cargo Securing Devices (Lashing Gear Box Containers)
Vessel shall account for all lashing gear box containers including bins prior departure from every port.
Read more...
Containership Cargo hold ventilation
Cargo holds of container ships are fitted with two basic types of ventilation systems, namely natural and mechanical. Mechanical ventilation could be of either the supply or the exhaust type.
Read more...
Safety navigation for container ships
While planning the passage for intended voyage the safety of navigation should be accommodated in, where it is both reasonable and possible to do so,
Read more...
Containership Cargo care at sea
Condition of Cargo (Container) Securing / Lashing shall be checked at least once daily and tightened as required.
Read more...
Containership operation: Safety of personnel
On board containerships there are several potential safety hazards in the cargo working area and these will have to be identified, made safe and monitored to ensure continued safety.
Read more...
Containership operation: wet damage in cargo hold
Water entered into vessel cargo holds may cause wet damage to the cargo inside containers especially stowed on the bottom, unless the bilge water is drained in a proper and swift manner.
Read more...
Containership operation: hull damage stevedores
In case a third party including stevedores is responsible for an accident caused by work, such as Cargo handling, Bunkering, or Loading ships stores or the like, the Master shall handle the accident with appropriate steps to claim for damages.
Read more...
Measures to protect the vessel side against stevedores injury
All working areas and accesses must be checked to be clear of any slippery matter and obstructions, be structurally sound and well lit, before stevedores come on board.
Read more...
Measures to protect reefer cargo deterioration
Check and monitor each reefer container as per voyage instruction, which requires some basic check items.
Read more...
Containership Navigation : Ships motion in a seaway
Ships are affected by movement in six degrees of freedom; rolling, pitching, heaving, swaying, surging and yawing. Of these, rolling, pitching and heaving generate the highest forces during heavy weather.
Read more...
Containership Cargo Securing Arrangement
Details of the securing system and its constraints are set out in the vessels approved Cargo/Container Securing Manual.
Read more...
Containership Cargo Operation : Common reasons for stowfall
Container stows often fail due to:
Container stacks being too heavy and too high overall, exposing the lower containers to excessive transverse racking and compressive forces due to the tipping effect.
Read more...
Containership operation : Ships motion in a seaway :parametric roll
The term parametric roll is used to describe the phenomenon of large unstable roll motion suddenly occurring in head or stern seas.
Read more...
Other info pages !
Ships Charterparties Related terms & guideline
Stevedores injury How to prevent injury onboard
Environmental issues How to prevent marine pollution
Cargo & Ballast Handling Safety Guideline
Reefer cargo handling Troubleshoot and countermeasures
DG cargo handling Procedures & Guidelines
Safety in engine room Standard procedures
Questions from user and feedback Read our knowledgebase
Home page
ShipsBusiness.com is merely an informational site about various aspects of ships operation,maintenance procedure,
prevention of pollution and many safety guideline. The procedures explained here are only indicative,
not exhaustive in nature and one must always be guided by practices of good seamanship.
User feedback is
important to update our database. For any comment or suggestions please Contact us
Site Use and Privacy - Read our privacy policy and site use information.
//Home //Terms and conditions of use
Copyright © 2015 www.shipsbusiness.com All rights reserved.
