Technological Breakthrough and Application Expansion: New Trends in the Large Hydraulic Cylinder Industry

In the field of large hydraulic cylinders, multiple technological breakthroughs and high-end application achievements have emerged recently, demonstrating the innovative strength of domestic equipment. In January 2026, Jiangsu Hengli Hydraulic Co., Ltd. will launch the world's largest open and close cylinder of pile driving ship, with a cylinder diameter of 1.6 meters, a stroke of 21 meters, and a rated thrust of 5000 tons. All four indicators will be the first in the world. The energy recovery rate of its first closed energy recovery system will reach 40%, which will soon serve the important project of the "the Belt and Road". At the same time, the offshore liquid rocket launch and recovery test platform at Shandong Yantai Dongfang Aerospace Port was equipped with four large hydraulic lifting cylinders responsible for 90 ° rocket lifting operations, marking the official entry of this type of cylinder into the field of aerospace equipment support.

The synchronous acceleration of intelligent and green transformation, the integration of magnetostrictive displacement sensors with large oil cylinders, achieves high-precision displacement monitoring under high pressure and wide temperature conditions, and promotes the upgrading of oil cylinders to intelligent sensing control; The newly implemented group standard for green lubricants aims to reduce the environmental impact of equipment throughout its entire lifecycle. Under the wave of domestic substitution, leading enterprises such as Hengli Hydraulic have continued to increase research and development, with large-scale production of 35MPa high-pressure oil cylinders. The penetration rate of intelligent servo oil cylinders in shield tunneling, wind power and other scenarios has exceeded 65%, helping the domestic large-scale hydraulic oil cylinder industry move towards high-end and high-quality direction.

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