The shipbuilding industry is a large-scaleindustry with a very long industrial chain, and some special types of ships caneven reflect the level of a country's supply chain. These types of shipsrepresent luxury cruise ships, aircraft carriers, LNG natural gas ships, FPSOs,research ships, and other types of special ships. In these special ships, manysubsystems require the support of slip rings. The slip rings used in FPSOmooring systems are the most technologically advanced among traditional sliprings. They require the transmission of high-pressure combustible gases andcrude oil, as well as the power cords of various underwater systems. Therefore,to meet the corresponding explosion-proof and protection levels, havingmultiple functions means having multiple components, and also means that thestructural design is very complex.

Let's give an example of the most common offshorecrane slip rings. JINPAT produces a variety of offshore crane slip rings mostfrequently, which are mostly installed in the rotating system inside the deckcrane. The vast majority of these slip rings are box shaped and do not have acenter through hole. For example, LPA000-03280-01PE-0440-1605, a classic modelof marine crane slip rings, has high stability, low failure rate, and isequipped with a junction box for easy wiring. Depending on the weight of thedeck crane, these slip rings also vary in operating voltage and current. Inaddition to their high-power transmission capacity, many box type slip ringsused in deck cranes also integrate signal modules. When designing such signalpower integrated deck suspension rings, engineers at JINPAT use differentmodules for physical isolation between the signal and high-power modules toavoid strong electrical interference signals. -

Of course, there is still a very importantmethod to solve the problem of signal interference in this large slip ring box,which is to replace the traditional conductive slip ring as the signal modulewith an optical fiber slip ring. The optical fiber slip ring inherits all thecharacteristics of optical fiber transmission, and the interference caused by thestrong electric field generated by the slip ring box can be completely ignored.Thanks to the excellent signal transmission characteristics of optical fiberslip rings, this optoelectronic integrated marine crane slip ring isincreasingly being applied from the production line of JINPAT to the productionand construction line.

In addition to the most common marinecranes, many ships such as scientific research ships and cruise ships arecurrently using podded full swing electric thrusters. Among the marine fullswing electric thrusters, the slip ring box is also a necessary component. As apioneer in the international slip ring manufacturing industry, JINPAT also hasstrong technical strength in this field. Currently, it has the ability toresearch and develop and mass produce podded electric thrusters below 15MW. Thefully rotating pod type electric propulsion slip ring is slightly differentfrom the crane slip ring. Some products have more signal channels and alsointegrate gas-liquid slip ring modules to transport oil to lubricate thepropulsion motor or cool other components.