are you still working on it?

Regards .

MAL ■

Dear Mr. Jeroen Staneke ..

My name is Marcelo Alonso, former designer of harbour cranes in a Agentinian company (IMPSA) and actually Project Manager for Cranes and Ports related bussines in ASH Engineering.

Basically your inquire is not easy to answer, all depends if the terminal will be exclusivelly for coal, the production capacity in ton per hour your project needs, the size of ships you will attend at the terminal, and some others particulars.

The main difference between the systems are:



CSU. Reccomended for terminals exclusively used to unload coal. The machine is not reversable, it means the terminal will not export any kind of some other products in the future.

Gantry/portal crane . This equipment was developed basically to handle containers and bulk materials, deppend of the materials and the grab volume the production range can be simmilar to the CSU system. Some terminals not exclusives for coal use it machine because the versatility and easy start up to set up other human consume products or fertilizers.

Mobile harbour crane. This equipment was developed basically to handle bulk materials and containers , deppend of the materials and the grab volume the production range can be simmilar to the CSU system. Some terminals with CSU or portal cranes installed use it machine to improve the production when the berth is long enough to handle both machines on it.

In some projects I know the owners starts unloading with mobile cranes in paralell with the port construction .

All deppends your client / project / company needs.

Gantry Cranes:Nöell, Vulcan Kocks, IPS System, Kone, others.

CSU: Vöest Alpine, Thyssen Group, FAM, others

Mobile: Gottwald, Liebherr, Reggiane, Demag, others

Please do not hesitate to contact for further information.

Marcelo Alonso

malonso@ash.cl ■

You are welcome,

The efectivity of the different unloader machines is depend of your needs, independ of your projects we have some differences in the productivity listed.

C shall be biger than 4,000 tph otherwise the cost vs productivity in not convinience in comparation with a bridge or level luffing machine.

- Bridge type grab crane: 2,000 tph is a conservative value for your evaluation.

- Mobile habour crane: 700 up to 950 tph all depends your berth facility and load per sqmeter in your soil.

The Outreach absolutelly variable and depend of your needs . It also will impact the cost of the machine.

All the manufacturers want to design few number of models then the Outreach is a problem. Some manufacturers are open to design the machine as per your requires it means more time, more risk and money.

Wider ships can be worked using more moval equipment, in our terminal every 55,000 DWT coal ship demand aditional 250 hs of machines such us buldozers on board wen we have to use a short outreach equipment.

CSU machine 4000 tph cost about 7 milion dollars FOB basis

Gantry Crane 2000 tph cost about 5.5 milion dollars FOB basis

Level Luffing 900 tph cost about 4 milion dollars FOB basis

Moval harbour 700 tph cost about 2,3 milion dollars FOB basis

Important thing to help you is to kwow a litle bit your project .

Best Regards.

MAL. ■

let me give you my impresion about.

first.

The cicle of the machine shall be measured with the hold at maximum, medium and minimum capacity. 1200 can be with full cargo at hold but practically the hold will be going down the level and the production every hour is going down.

the last 6 hours are the worst then those kill your performance.

second.

The coal is about 2,3 kilograms per litre relative weight, if the coal you have is free of humidity it can be 1,7 kg/litre it means that you have grabs about 20 cubic meters, it means 34 tons of coal plus a weight of the grab it is around 12 ton equal to 46 tons holding on the boom structure, with an continuous operation of 72 hours let me tell you that can not believe 1200 tons.

also the weel load in those conditions is too much, how is the berth capacity, are the berth beams located in a dimention according with the original span of the crane?

Also you have consider an enough berth capacity to move the crane all along ?

Tomorrow will give more details.

regards.

MAL ■

I need some more definitions to help you.

tell me the crane and equipments you have being determine to be use.

The equipment to load barges and to unload ships will be the same?

you have being considered that once you have unloading 150,000 ton ships you have to load barges in paralell?

I think that the best combination will be some 2000 tph crane equipment ( two units) plus some handable and portable conveyors ( 1200 tph)

Think on that and later we discuss. ■

you can have some ideas looking trough

http://www.ovet.nl/

MAL ■

I´m working on it.. I need some days because now I´m on travel, I will be back on friday.

I will let you know some referencial values.

Regards.

MAL ■

Jeroen,

I have some budjets for some other projects in Chile (south America) a berth 4oo mts long 35 mts wide two lines of rails span 30 mts 3120 piles is about 14 million dolars.

It can hold a machine with about 20 tons per meter (on rail line).

the rail is 175 lbs/yrd

Chile is very seismic country may be in other places it is cheaper than here.

I will find more details.

Regards.

MAL ■