Hydraulic quick coupling technology repeatedly speeds up, domestic parts accelerate the global market

As the core basic component to realize the rapid disassembly and installation of pipelines in the hydraulic system, the hydraulic quick coupling is directly related to the operation efficiency, sealing safety and operation and maintenance costs of the whole machine equipment. With the rapid development of global engineering machinery, agricultural equipment and new energy marine industry, the market has put forward higher standards for quick couplings in terms of high-pressure sealing, anti-pollution, low leakage and adaptability to extreme working conditions, and the industry has ushered in a new stage of technological upgrading and global competition.

Hydraulic quick couplings are widely used in engineering machinery, agricultural machinery and equipment, wind power equipment, marine engineering, industrial automation and other scenarios. They can complete the connection and disconnection of pipelines without tools, and play an irreplaceable role in equipment overhaul, equipment replacement and pipeline debugging. Mainstream products such as flat-head, thread-locking, pressure-removing, etc. continue to iterate. The flat-head zero-leakage quick connector has become the mainstream choice for engineering equipment due to the lack of medium overflow and strong anti-pollution ability during disassembly and installation, effectively reducing the loss of hydraulic oil, reducing the risk of system pollution, and prolonging the service life of hydraulic pumps and valves.

The global market is steadily expanding, and the Asia-Pacific region has become the core growth plate. Data shows that the global hydraulic quick coupling market has maintained steady growth, and engineering machinery is still the number one application field. New energy wind power, photovoltaic hydraulic drive and offshore equipment have become the fastest growing track. In the past, high-end quick couplings were dominated by overseas brands for a long time. In recent years, domestic leading enterprises have continued to tackle the process of material heat treatment, precision grinding, special sealing and surface coating technology. The performance of high-pressure and high-frequency plugging and unplugging products has achieved benchmarking international standards. Some models have passed ISO international standards, TÜV certification, national The process of production substitution continues to accelerate.

In the face of complex working conditions such as mines, deep sea, high and low temperature, strong corrosion, etc., the focus of industry research and development has shifted to ultra-high pressure, long life and modularization. The new generation of products optimizes the self-mating sealing structure to reduce the risk of partial wear failure; the use of high-performance coatings and special sealing materials greatly improves fatigue resistance and corrosion resistance, and the plug-in and unplug cycle life is significantly improved. At the same time, the modular integration scheme is gradually popularized, integrating the design of joints, sealing components and dust protection to help the whole machine factory improve the assembly efficiency and reduce the probability of on-site oil leakage failure. Intelligent exploration has also begun. Some new products try to integrate pressure sensing interfaces to provide data support for remote operation and maintenance and fault prediction of equipment, and promote the upgrade of simple connectors to sensing fluid connection units.

The export scale of domestic quick couplings continues to increase, the product structure continues to be optimized, and the proportion of exports of medium and high-end models is steadily increasing, and it is exported to Southeast Asia, the Middle East, Latin America, Europe and other overseas markets. However, it should also be noted that in ultra-high pressure, deep sea, aviation and other extreme high-end scenarios, domestic products still have room for improvement, and the basic research of materials and long-term reliability tests of multi-conditions still need to be precipitated.

Industry experts said that in the future, the competition of hydraulic quick joints will no longer be limited to the competition of pressure resistance parameters, but a comprehensive competition of materials, sealing, technology, standardization and full life cycle services. With the transformation of the global equipment manufacturing industry to low-carbon and high efficiency, the safe, reliable, low-leakage and easy-to-maintain hydraulic quick coupling will continue to empower the high-quality development of various global equipment industries.