A high-power offshore controllable pitch propeller propulsion system project applied by the subsidiary of NGC Marine Group鈥斺�擭anjing High Accurate Marine Equipment Co., Ltd. (Nanjing High Accurate Marine) recently won the third-class prize of China Machinery Industry Science and Technology Award. The China Machinery Industry Science and Technology Award is a comprehensive award of the national machinery industry. Since its establishment in 2001, thanks to the support of multiple parties, this award has formed influence and authority within the industry. Nanjing High Accurate Marine won the honor and further proved its leading position and strength the ship industry.The high-power controllable pitch propeller propulsion systems developed by Nanjing High Accurate Marine are mainly used in offshore vessels, and is a high-end core matching part in offshore fields. This system includes propeller hub and shaft components, oil distributor, hydraulic system,, electric control system, and gearbox. The system utilizes finite element fatigue strength analysis on key parts such as the propeller hub and the gear under high power conditions, and utilizes the concept of optimization in the lightweight design of the large gearbox and the panel method in the calculation of propeller hydrodynamic performance. And also, the system adopts analysis of long shafting alignment, stabilization design of the long shafting hydraulic station and design of large torque clutch, and gives consideration to multiple factors influencing the gear engage design. As a series of controllable propeller products a...

On the afternoon of September 26th, 2014 the NGC Marine Company 鈥淨uality Season鈥� knowledge contest was held at Nanjing High Accurate Marine Equipment Co., Ltd. (Marine Company). Members of the contest leading group, youth leagues, union representatives, 24 contestants, and a number of staff representatives totally 80 people in all attended the contest.The contest was hosted by Marine Company Deputy General Manager Mr. Liu Xinghui, who firstly introduced the development of the three-month marathon ''Quality Season''. He later amply vindicated the achievements made in the contest, and expressed his hope that the company could maintain a single mind, strictly controlling quality and returning high-quality products to the market.The leader of the contest leadership group and the general manager of Marine Company Chen Yongdao made important remarks during the contest. Mr. Chen firstly congratulated the eight teams which had gone through preliminary competitions, amply vindicating the hard work of ''Quality Season'' committee workers over the past three months, and then expressed heartfelt thanks for the strong support for the contest offered by the labor union and youth league. Mr. Chen noted that quality is the eternal theme of enterprises and our life. Because of the particularity and significance of marine products, we continuously improve product quality, leading the market in technology and quality and giving back to customers. To these ends, workers should further increase their awareness of quality through the opportunity of the ''Quality Season'', implementing the "custo...

Recently, the subsidiary corporation of NGC Marine Group鈥斺�擭anjing High Accurate Marine Equipment Co., Ltd (鈥淣anjing High Accurate Marine鈥�) successfully completed sea trials for the primary propulsion system, including controllable pitch propeller and controllable propeller gearbox matched for 65m AHTS (anchor handling towing supply) of Singapore Miclyn Express Offshore, and finished the dynamic positioning sea trials. In recent years, after accumulating experience in terms of multiple dynamic positioning marine ship projects, Nanjing High Accurate Marine has become a unique equipment supplier able to completely grasp propulsion system design and seal trail technology of the dynamic positioning ships amongst domestic brands. The ship is the leading ship of the series built by the Wuchang shipyard and exported to Singapore; with the successful sea trails and delivery in batches of those ships, the products representing Nanjing High Accurate Marine are gradually entering the Singapore marine ship market.figuration of dual-machine dual-propeller. Classification society is ABS, host is import Daihatsu, and the product has power of 2666kW. The design requirements of the project are that the thruster be capable of producing 90T of bollard pull power in standard sea conditions when the host power is 100%, with a maximum ship speed of 13Kn. After the sea trials were tested onboard, the bollard pull power of the ship was found to rise to 92T, and the ship speed rose to 13.4Kn. As the two most important design indexes of the anchor handling towing supply, the bollard pull power and th...

Few days ago, the JDTS1350 underwater cutter head gearbox of Nanjing High Accurate Marine Equipment Co., Ltd., a subsidiary of NGC Marine Group, was recognized as the first major equipment (set) of Jiangsu Province following a review by relevant authorities. This event indicated that the independent research efforts of Nanjing High Accurate Marine Equipment Co., Ltd. in the dredging equipment field have received full technological and market recognition. The First (Set) of Major Equipment and Key Components of Jiangsu Province Project was established by the Jiangsu Economic and Information Technology Commission. The Project aims to encourage the independent development of high-tech equipment, large complete sets of equipment and the key components in the high-end manufacturing field. China鈥檚 Twelfth Five-Year Plan for the national development of the ocean economy proposed developments expectation for the shipping industry and marine engineering equipment manufacturing industry. In the future, China鈥檚 waterway construction will continue to improve port layouts along rivers and seas, improve marine outfall channels, enhance inland river navigation conditions, and build a senior waterway network along the Yangtze River, Pearl River and Xijiang River. To this end, the development of the dredging industry is supported and driven by many factors, with good prospects. Moreover, as a very important ship type among dredging ships, the cutter suction dredger accounts for more than 60% of total dredgers, with wide application markets. As the key device of cutter suction dredger, the c...

Nanjing High Accurate Marine Equipment Co., Ltd (NGC Marine) successfully performed benchmark testing for the soft engagement performance of the PTI clutch for the main propulsion gearbox of a large-sized ocean surveillance ship for the State Oceanic Administration (SOA) on April 25, 2014. The marine main propulsion gearbox with PTI functions, characterized by its fuel savings, higher efficiency and higher navigation safety and reliability etc., can be used for free switching of motor or diesel engine as its power source, showing the advanced vessel propulsion mode. The PTI clutch is engaged at a rated speed (1500rpm for this project) and therefore the conditions are extremely severe. During the engagement, clutch disks can slip for a long period of time and lead to high temperature. This clutch is an important part for ensuring PTI functions. Considering the shock during clutch engagement, NGC Marine has developed 鈥淗ydraulic- electric鈥� control modules, realizing soft engagement and adjustable engagement time. A high propeller rotary inertia and load under real ship simulations have been adopted for this test. Problems such as test benchmark capacity limits and high-speed data collection etc. have been solved by company management and technical support, and finally the test was successfully performed. During test, detailed dynamic data reading of soft engagement process have been collected; soft engagement functions of the PTI clutch have been verified effectively and out of which, important experiences have been accumulated for future projects with similar functions. PTI f...

The 13th Asia Pacific Maritime Exhibition which lasted for three days was held in the Convention Center of Marina Bay Sands in Singapore. More than 1500 exhibitors from over 50 countries attended it, which attracted 15000 visitors from over 60 countries came to visit. Nanjing High Accurate Marine Equipment Co., Ltd and NGC Marine Propulsion SouthEast Asia Pte Ltd, the subsidiaries of the NGC marine group together joined the exhibition. The exhibits such as the gearboxes of offshore platform lifting system, the CPP propulsion system and the tunnel thruster and the azimuth thruster and so on displayed in the event ,which have aroused extensive interests of visitors t and become the highlights of the show. Mr. Chen Yongdao ,the general manager, introduced the company product to the Deputy Transport Minister of SingaporeThe commercial counselors of the Chinese Embassy in Singapore visited our boothSingapore is the largest trading port and maritime centre in Southeast Asia region. In recent years, it has become the ocean engineering construction center. Comparing with the rest part of the global shipping market, the market here is relatively stable, and the maritime work has risen steadily. In order to make better service for the customers in Singapore and Southeast Asia region, Nanjing High Accurate Marine Equipment Co., Ltd set up a branch company in Singapore early in 2011 and cooperated with Viking Engineering Pte Ltd, the famous engineering service company in Singapore, to work for the ship owner and shipyard. So far, the marine group has delivered several sets of products ...

During Last Decade, the international dredging market has been in fierce competition. The construction scale is bigger and bigger, the requirements of technology, efficiency, cost and environmental protection are continuously improved a lot. With the demands of the larger scale of dredging equipments and expansion to the overseas markets, it is more and more urgent for China to need them. The gearboxes and propulsion system as the key parts of the ships are essential for the performance of the whole ship. However, the key technology is monopolized in Europe and blockaded by them, who only provided the whole ships and complete equipments to our country in order to receive high profits. Relying on importation has severely limited the development of dredging enterprises in China and can not meet the domestic demand and participate in the international competition. Therefore, it has become the consensus of the dredging industry that independent design and localization of key equipments can provide dredging technology guarantee for China to become a strong country . Climbing up the summit step by step, striving after the perfection bit by bit. Through years of efforts by our staffs in the marine group of NGC, we have mastered some important techniques of gearboxes and transmission equipments of large scale dredge boats. Our technology started from R & D to the international leading level in the respects of the dredger reamer gearboxes, the underwater pump gearboxes, the under deck pump gearboxes, the traverse hoist gearboxes, transmission equipments and so on, and realized t...

On the afternoon of March 12, 2014, the opening ceremony of Nanjing High Accurate Marine Equipment Co., Ltd. (hereinafter referred to as: Nanjing High Accurate Marine) for "job training and skills contest" was held in Nanjing High Accurate Marine, which can help Nanjing High Accurate Marine to speed up the construction of skilled and talent team and generate excitement of the employees to learn more knowledge, practice skills and make more contributions so as to create a high quality skilled personnel to meet the requirement of modern construction enterprise.(Chen made an important speech)Mr. Dai Guilin, the Deputy Director of the Organization Committee of the campaign and deputy general manager of Nanjing High Accurate Marine presided at the opening ceremony. At first Mr Dai briefed the importance of this "job training and skills contest", and after that he made the specific requests of the activity and hoped that all the participants were able to race out of style and race the level of competition the spirit. Subsequently, Mr. Wang Yonghui, the technician from the Manufacture Control Department read the contest rules on behalf of the referees. Mr. Zhou Fei, a turner from No. 6 branch factory, read the oath on behalf of the players. Finally Mr. Chen Yongdao, the general manager of Nanjing High Accurate Marine and the director of the Organizing Committee of the event, gave an important instruction.(Active site)(Mr. Wang Yonghui read the contest rules on behalf of the referees)Mr. Zhou Fei read the oath on behalf of the players)Mr. Chen, the general manager, pointed out that...

Recently, Nanjing municipal government announced the decision of honoring the 2013 awarded enterprises and individuals with Nanjing Science and Technology Progress Prizes, and the NRP250 fixed pitch rudder propeller made by Nanjing High Accurate Marine Equipment Co., Ltd. was awarded the third progress prize. This product also has been selected as Jiangsu High and New Tech Product, the First Set of Important Equipment in Jiangsu and was awarded the Jiangsu Excellent New Product Golden Prize in 2013. The NRP250 fixed pitch rudder propeller made for the Xiangyanghong No.10 scientific research vesselSome hydrodynamic theoretical methods like lifting line, lifting surface, CFD etc. were utilized to optimize the design of NRP250 fixed pitch rudder propeller. It improves the accuracy and efficiency, restrains the vibration and cavitation, and meanwhile improves the propulsion efficiency of the propeller. The rudder angle feedback, the manual swinging gear, the oil drainage tool and hydraulic system are modular designs, which make them easy to be replaced and maintained. 7 national utility models patents have be granted for this product, and the product quality has reached the European standard. It is featured with reliability, smart and easy maintenance.Nanjing High Accurate Marine Company has been focusing on technology and continuing innovation, and has provided the customers with outstanding products. The company can provide each kind of transmission and propulsion equipment except prime mover, including controllable pitch propeller, fixed pitch propeller, azimuth thruster, tu...

According to the rules from the Opinions of Further Promotion and Application of New Technology and New Products by Jiangsu Provincial government, and from the Trial Selection Method of the Excellent New Product of Jiangsu Province, the Jiangsu Economic and Information Technology Commission organized the 2013 annual excellent new product selection activity and issued the results recently, among which the gold prize of Jiangsu Excellent New Products was awarded to Nanjing High Accurate Marine Equipment Co., Ltd.(NGC Marine) for its NRP250 fixed pitch rudder propeller.Rudder propeller is an important portion of the marine propulsion system. It can provide thrust in 360掳and is easy to operate, which has been widely used in different kinds of vessels and ocean platforms. The NRP250 rudder propeller developed by NGC Marine has build-in hydraulic clutch, with steering and clutch integrated in the propeller for easy installation in shipyard and following up maintenance; high efficient nozzle and CFD optimized blade are designed to achieve an increase of 5% on blade efficiency at the same engine power; modular design has been taken for the rudder propeller to enable interchangeability of parts. Till today, rudder propellers produced by NGC Marine have been widely used in ocean platforms, harbour tugs, crane vessels, cable laying vessels, scientific research vessels and various kinds of military vessels.As a high & new tech enterprise of Jiangsu province and the industrial product design center of Jiangsu province, NGC Marine has been keeping researching on the propulsion and tr...