Lifting equipment is main machine in all harbors and high bay storages. Leading ports in Poland like Port of Gdańsk or Port of Gdynia with Gdynia and Gdańsk shipyards and big warehouses in middle part of country are usinga few equipments allowed to use by polish law. First of all are cranes. In usual use we have three general types: overhead, mobile and fixed. First one is ordinaly used inside storages. It could be remotely conducted by employee with permission.
It is equipped in a beam on which hook-and-line device is moving. Second is mobile crane. By definition, it might change workplace so it is commonly using outside. Last one is named fixed. They are the highest and can lift the heaviest stock. It is exploit outside because of its size. Second type of lifting equipment is gantry crane. Ordinaly used in ports and railway stations to storing and stowing shipments. First one was made of raw materials by Germans and located in Danzig (today it is polish city called Gdańsk) and it was built-it inside town walls. Nowadays gantry cranes are ordinaly set with open space inside. Because of that they are called portal cranes.
Without this devices loading and unloading huge tank boats may be absolutely so time-consuming and costly. Investing in brand new science achievements shall be the prime factor in budgets of logistics firms, storehouses and harbours.