Mobile Stool System, MoSSt, it´s a technical solution for continuous type self-discharging bulkcarriers of new design that uses the lower stools to accommodate the self-discharging gear. The lower stools are present on the cargo holds of conventional bulkcarriers.

For this reason there is no cargo capacity loss in the ship´s cargo holds, comparing it to a conventional gearless bulkcarrier. At the same time have all the advantages on flexibility and port independence from the continuous type self-discharging bulkcarriers.

The system uses new design mobile stools that makes possible for the self-discharging gear easy access every corner of the cargo hold. This technology can be adapted to all bulkcarrier sizes, from Handysize to Cape size, without imposing ship´s hull further conditionings. The innovative system can reduce the time to discharge bulkcarriers, improving ship´s productivity.

‘‘This technical solution is adaptable to all bulkcarrier´s sizes, meaning a new generation of bulkcarriers”

View from a bulkcarrier fitted with Mobile Stool System – MoSSt

• The continuous type self-discharging bulkcarriers, are capable of operate in ports with small infrastructure. On the other side there is a cargo hold loss that occurs with this systems, specially on the gravity type. That means higher freight prices compared to conventional bulkcarriers.
• The discontinuous type self-discharging bulkcarriers, needs bulldozer stacking in the cargo holds. As a result the these bulkcarriers are not fully independent from port.
• A new bulkcarrier should have complete independence from port facilities and having at the same time the cargo hold geometry from a conventional bulkcarrier. Having those features together will help to reduce port associated costs and also it will maximize cargo on each trip, increasing productivity.
• Self-discharging gear shouldn't be in contact with the bulk or weather during navigation and not to condition ship´s hull shape. The self-discharging gear also has to be cost competitive, easy maintenance and minimum power consumption.

‘‘The system joint advantages from continuous type self-discharging gear and have at the same time the cargo capacity from a conventional bulkcarrier’’

• Bulk transport industry
• Bulkcarrier ships are 20% of merchant ships (abt. 10400 vessels from a total abt.55600) and more than the 40 % of dead weight tonnage (DWT) of world fleet (abt 700 million DWT) [RS Platou, 2013]
• This type of vessel was the fastest growing type in 2013, with a 6 % growth (abt. 350 vessels)
• The unitary cost of new contruction bulkcarrier varies from 20M€ to 50 M€. The MoSSt itself will cost abt. 4 to 10 % of ship´s cost.
• Considering an average construction of 10 continuous type of self discharging bulkcarriers per year, and with an initial anual business share of 10%, it could mean 1 MoSSt ship per year [Lloyd´s list 2010]
• Minning industry
• Raw materials storage and stacking 

• The system has all the advantages from continuous self discharging bulkcarrier, but without the inconveniences that those systems carries out with it, such as the cargo hold capacity loss.
• The system uses the lower stools spaces to house the continuous self discharging gear.
• The system allows the ship to be fully independent for port facilities.
• Combined use of stacker and reclaiming continuous system, such as adapted bucked wheels and conveyor belts that reduces reducing technical risks.
• Mobile lower stool that protects self discharging gear from bulk.
• Full access to self-discharging gear during navigation and discharge, for maintenance or inspection.

View from a cargo hold fitted with Mobile Stool System - MoSSt

• A cost competitive, reliable and easy to maintain self-discharging gear, that need minimum power to operate
• Higher discharging ratios, compared to available market systems, that reduces costs and increases productivity.