Thousands of ships are competing to sail, and huge ships are traversing rivers and reaching the seas! The Pinglu Canal, the first national-level canal constructed under overall planning and spanning rivers and reaching the seas in New China, has been officially completed and opened to navigation. This century-long project, with a total length of 134.2 kilometers, has opened up a major shipping route for the southwest region and rewritten the regional shipping landscape. Under the watchful eyes of the public, behind the efficient opening and closing of the ship locks, apart from the powerful hydraulic "heart", Jiangsu Tuobo Industrial Cold Oil Generator, which ensures the stability of the entire system through its key temperature control barrier, is an indispensable hidden force for the smooth operation of major engineering projects.

The Pinglu Canal, as a strategic hub of the Western Land-Sea New Corridor, can accommodate vessels of 5,000 tons and can shorten the shipping distance for goods from the southwestern region to the sea by over 560 kilometers, reducing logistics costs by approximately 30%. As the "key passage" of the canal, the Madao Hub is a world-leading inland river water-blocking ship lock with the fastest valve opening and closing speed. It takes only 1 minute to open and only 30 seconds to close. The continuous and high-frequency opening and closing operations place extremely demanding requirements on the stability, control accuracy, and environmental durability of the entire hydraulic equipment. Any failure in any part will directly affect the navigation efficiency of the entire canal.

The precise opening and closing of the inverted gates of the ship lock and the water supply working valves are entirely powered by hydraulic lifting machines. Two hydraulic industry leaders, Bosch Rexroth (Changzhou) Hydraulic System Co., Ltd. and Jiangsu Hengli Hydraulic, provide the entire project with high-performance hydraulic lifting solutions, delivering a large number of hydraulic cylinder assemblies and core hydraulic pump stations to achieve the opening and closing performance comparable to that of the Panama Canal, while also taking into account water conservation and energy saving, and supporting the power core of the Pinglu Canal.



However, a powerful hydraulic "heart" cannot exist without a reliable temperature control "guardian". During the repetitive and high-frequency operation of the ship lock, the hydraulic pump station continuously operates at high speed, generating a large amount of heat. If the oil temperature gets out of control, it will trigger a chain reaction: the viscosity of the hydraulic oil will suddenly change, the sealing components will accelerate aging and wear, the valve group response will deviate, directly damaging the synchronization accuracy of multiple cylinders, and even causing the gate to malfunction and the equipment to stop, directly threatening the safety of the entire ship lock operation.

01 Lock the oil temperature benchmark, safeguard the core control accuracy

High-precision constant temperature regulation will firmly stabilize the hydraulic oil in the optimal working range. It eliminates the system deviation caused by oil temperature fluctuations, ensures the coordinated action of multiple hydraulic cylinders, strictly adheres to the hard engineering standard of the gate synchronization error ≤ 15mm, and ensures the smooth and precise start and stop of the hinged gates and water supply valves. This is an important prerequisite for the stable and fast opening and closing of the high-speed ship lock.

02 Resist harsh working conditions, withstand all-weather continuous tests

Special optimization is made for the special water conservancy environment of the canal, which is humid and full of water vapor. It strengthens the anti-corrosion and anti-vibration capabilities, adapts to the 24-hour continuous standby condition of the water conservancy site, and fundamentally avoids the risk of overheating and shutdown, leaving no safety hazards for the navigation operation.

03 Suppress equipment wear, extend the service life of the entire equipment

Intelligent and demand-based adjustment of cooling capacity, while achieving efficient heat dissipation, also takes energy conservation and consumption reduction into account; effectively delays the oxidation and deterioration of the hydraulic oil at high temperatures, reduces the wear of hydraulic cylinders, valve groups, and sealing components, significantly reduces the later maintenance pressure, and deeply conforms to the green and sustainable construction concept of the Pudong Grand Canal.

04
Engineering-grade reliability quality, full-link risk protection period

Equipped with complete fault warning and self-protection mechanisms, it has been rigorously tested through both factory integration and on-site working conditions. The complete system from Rexroth and Hengli Hydraulic can stably output powerful power. The reliable heat dissipation performance of Jiangsu Tuobo Industrial Cold Oil Generator is indispensable.






Every time a large vessel passes through the lock, and every time the gates open and close at high speed, behind it is Jiangsu Tuobo Industrial Cold Oil Generator continuously discharging heat and strengthening the temperature control defense line. Rexroth brings global advanced hydraulic technology, Hengli Hydraulic breaks through the technical barriers of domestic high-end hydraulic equipment, and Jiangsu Tuobo, with its indispensable temperature control supporting capabilities, guarantees the entire hydraulic solution of the two leading enterprises, jointly supporting the safe navigation of this century project.

The success of major national heavy machinery not only relies on the core strength of the main machine, but also depends on the flawless performance of every key supporting component. A small cooling process directly affects the success or failure of the entire hydraulic system.

The Pinglu Canals sailing to navigation marks a new milestone in Chinas large-scale water conservancy infrastructure. In the future, Jiangsu Tuobo will continue to delve into industrial temperature control core technologies, continuously iterate and adapt industrial cold oil generator solutions for water conservancy projects, and work together with industry upstream and downstream partners to use specialized manufacturing strength to safeguard the smooth operation of more major national heavy machinery, and empower Chinas infrastructure to advance with high quality.