The line is designed for the series production of liquefied petroleum gas vessels using the filament winding technology, for this purpose it is possible to apply various fibers, including basalt fiber. The line contains four winding stations having five spindles each. The high degree of automation of the production line guarantees maximum productivity enabling the manufacture of 600,000 LPG vessels per annum.
Bernd Fischer, Sales Director at Roth Composite Machinery, declares: “Having a cycle time of 43 seconds per vessel, it is the world’s most effective production line of this type at present. The advantages of fibre-reinforced plastics for LPG vessels are clear – they are significantly lighter than convential materials and allow a realization of complex product geometries with highest stability.” Fibre-reinforced plastic tanks are increasingly used for the storage of fluids or gases. So, for instance, they are suitable for applications with hydrogen or nitrogen”.
The company informs, that two independent winding stations are placed in one gantry, and the time for loading and unloading is in parallel to the productive time. The loading and unloading of the vessels is carried out in a fully automated way by using robots.
There is an impregnating bath with shuttle table for the impregnation of the fibres ensures optimal efficiency. By this, the production interruption periods are reduced by about 80 %. A patented procedure for an automatic applying and cutting of the fibres being integrated in the fibre delivery carriage enables highest degrees of automation and efficiency. The control guarantees the exactly defined positioning of the fibres onto the vessel. A gantry combination provides for high precision between the spindles and the stiffness of the total system. The tolerance value of the composite material from spindle to spindle is less than two grams.
To recap, Roth Composite Machinery has before announced new Lab Plant for prepregs, this machinery was showcased at JEC World 2017.