The Tong Jun, a 35,000-cubic-meter ultra-large trailing suction hopper dredger built by Shanghai Zhenhua Heavy Industries (ZPMC) for CCCC Tianjin Dredging Co., Ltd., successfully completed sailing and dredging sea trials in the Yellow Sea on November 25 before returning to berth at ZPMC Qidong Marine Engineering’s shipyard, according to the release.
Over five days, propulsion, dredging, navigation, and communication systems underwent comprehensive testing, with results meeting design specifications.
The two 9,000-kilowatt submerged dredge pumps supported long-distance slurry discharge operations of up to 12 kilometers. One full load of dredged material can raise the surface of a standard football field by five meters.
The vessel maintained performance even under complex sea conditions, validating intelligent operation, efficiency, versatility, and an environmentally responsible design, with all key performance indicators meeting or exceeding design targets.
The Tong Jun measures 198 meters in length with a 38.5-meter beam, a maximum dredging depth of 120 meters, the largest hopper capacity in Asia and the second largest worldwide. It incorporates core technologies such as the One-Touch Dredging system, an integrated dredging-piloting-surveying platform, a hybrid twin-drive propulsion system, and an intelligent energy-efficiency management system, and includes provisions for future methanol dual-fuel integration.
The vessel is designed for applications including port and waterway construction, deep-sea dredging, and land reclamation.
Shanghai Zhenhua Heavy Industries (ZPMC) is a Chinese engineering and manufacturing company specializing in heavy-duty equipment for ports, offshore engineering, and large-scale infrastructure projects. It operates shipyards and production bases that build cranes, marine engineering vessels, and customized heavy equipment for domestic and international clients.
CCCC Tianjin Dredging Co., Ltd. is a subsidiary within China’s state-linked infrastructure and construction sector that provides dredging, land reclamation, and marine engineering services.
