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Weite safety monitoring system assists Southeast Shipyard's pedestal crane
2021-10-15 10:02:23

Recently, the WTSM-A crane safety monitoring system installed by Weite Technologies Co., Ltd. for the pedestal crane of the Southeast Shipyard has been installed and debugged, and it has successfully passed the inspection and acceptance of the special equipment inspection institute.


Fujian Southeast Shipyard, formerly known as "Fujian Fishing Vessel Repairing Factory", was established in 1956. It is one of the backbone enterprises of Fujian Shipbuilding Industry Group Corporation. It has passed ISO9001:2008 certification and obtained the UKAS quality management system recognized by the British Royal Mark Certificate.


Fujian Southeast Shipyard


The factory is located in the well-known natural deep-water port of Mawei at home and abroad. It covers an area of more than 200,000 square meters. It uses modern high-tech equipment such as electronic computers, CNC cutting, plasma cutting, etc. to engage in design, production, operation and management, and has a construction capacity of less than 10,000 tons The capacity of various types of ships, the main products are various fishing boats, marine three-purpose tugboats, product tankers and landing craft, etc. Most of them are exported to Japan, France, Greece, South Korea, Singapore, Malaysia and other countries as well as Hong Kong and Taiwan.


The pedestal crane of this cooperation


The WTSM-A safety monitoring system installed by Weite and Southeast Shipyard in this cooperation is equipped with angle sensors, anemometers, and load indicators to the pedestal crane in accordance with the requirements of the national standard. A camera is installed on the top of the arm and each of the four outriggers.


WTSM-A safety monitoring system


Since this pedestal crane is a full-swing type portal crane, the support point and pivot point of the slewing mechanism are different from the conventional portal crane, which causes great difficulty in transmitting the video signal and sensor signal of the cart to the operator's cab.


Weite load moment indicator and anemometer


For the stability of each signal transmission, after field technicians' investigation and test, the solution of using bridge transmission was finally selected.


Central slip ring bridge


Since the lowest point of the turning point of the pedestal crane reaches the upper plane of the outrigger, if the net bridge is installed on the plane of the outrigger, when the turning mechanism rotates 180 degrees, the net bridge of the turning mechanism will be blocked by the steel structure of the turning mechanism, causing the cab signal to be interrupted. The field experiment finally decided to install the launching bridge of the cart and the receiving bridge of the operator's cab at the central slip ring, which smoothly solved the signal transmission problem. After the installation of the monitoring system, the test signals were all normal and there was no jam.




After installation and commissioning, the sensor data is accurate and the safety control and alarm functions are normal. It can accurately control the upper and lower limit range of the boom, the rated weight of the boom with different ranges, and the upper and lower limit positions of the cart and the height of the main hook. The limit position adds an extremely important protective barrier for the safe operation of the crane.


Weite Engineer at site


Weite has cooperated with Southeast Shipyard many times to install multiple safety monitoring systems, load momentlimiters, and overload limiters for multiple sets of equipment such as gantry cranes, portal cranes, and plant bridge cranes. We are very satisfied with the use of Weite’s products. After the installation of the pedestal crane safety monitoring system, the factory will keep a good long term partnerships  with Weite Technologies.

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