TWO OFFSHORE CRANES ON A MAINTENANCE-PLATFORM (LIEBHERR BOS 50/700)
The existing control system was very outdated. We renewed the entire control system to a modern PLC system. This included a new touch-screen for better overview of the crane, complete junction box, as well as a new chair, joysticks and fixtures for the drivers cabin. Furthermore, the mechanic pressure memory was replaced by an electric pressure memory, making fine adjustments much easier.
TWO OFFSHORE CRANES ON A DRILLING-PLATFORM (LIEBHERR BOS 50/1500)
The existing control system was outdated. We renewed the entire control system to a modern PLC system. This included a large touch-screen, complete junction box as well as a completely new driver cabin. Furthermore we installed a hydraulic emergency lowering system for the hoist.
8 BULK-VESSELS WITH TWO GANTRY CRANES ON EACH OF THEM (LIEBHERR CAB40 SWL40T)
This type of crane is a special application crane of which only 16 units have been built. Unfortunately the manufacturer had problems in providing satisfactory crane servicing, therefore GREUSSING CRANE SERVICE is responsible for the servicing of these cranes, as well as the training of the costumers staff. The existing control system was quite outdated, and the availability of spare parts became increasingly difficult and expensive. We renewed the entire control system to a modern PLC system. This included a large touch-screen for an overview of the complete system and advanced troubleshooting, a wireless anti collision system, remote control system (also for emergency drive of the hydraulic) and new load cells with load indication.
3 BULK-VESSELS WITH FOUR JIB-CRANES ON EACH OF THEM (TSUJI JIB-CRANE SWL 36T)
The existing control system was quite outdated and the availability of spare parts became increasingly difficult, as well as expensive. The old system also had safety problems.
2 BULK-VESSELS WITH TWO GANTRY TELESCOPIC CRANES ON EACH OF THEM (MITSUI CRANE SWL 40T)
The existing control system was outdated and the availability of spare parts became difficult and expensive. We renewed the control system with a new rotary encoders. We also implemented the function for automatic driving in- and out of the ship (driving the crane of the ship / driving the crane back on to the ship to the exact position, where cargo has to be picked up.
POWER PACK ON ONE OFFSHORE CRANE ON A DRILLING-PLATFORM (LIEBHERR BOS 50/1500)
The original installed hydraulic pumps were outdated, causing increased maintenance costs. This pumps are no longer produced, meaning all pumps have to be constantly overhauled. The old pumps were replaced by modern pumps, with the benefit of, a more compact size, easier exchange and financially viable. As the diesel engine was already an older type, a state of art engine (CAT C 18 marine engine) with direct connection to the PLC for easier control and better monitoring, was installed. There is now more space around the engine, which allows for better access to the hydraulic and enables an easier overview of the hoses and hydraulic.
HEAVY FUEL OIL MODULE FOR AUX. ENGINE (GENERATORS) OF GEAR-BULK 5TH GENERATION VESSELS
As we know, most of the outdated control systems on old vessels are not working appropriate. We e.g. replaced on numerous vessels their old PLC`s with our new one and installed them in the “engine control room” out of the original cabinet, where they used to be exposed to intense heat and vibrations. The contactors and relays still remain in the cabinet, connected with the three multi-core cables to the PLC- touch-screen. The system is regulating the temperature of the heavy fuel
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