High-end industrial transformation and upgradingTechnical standardizationIt is imperative for XCMG to add 3 more items in the field of hydraulic core components.“New National Standard”

GB/T 43898-2024

《Precision seamless steel tube for hydraulic cylinder of engineering machinery》

This standard specifies the designation method for such steel pipes.、Order content、Size、Shape、Weight and allowable deviation、Technical requirements、Test method、Inspection rules、Packing、Mark and quality certificate, etc.，Applies toHydraulic cylinder of construction machineryWith an inner diameter of 80mmTo 500mmYesCold-drawn or cold-rolled precision seamless steel pipes。XCMG Hydraulics is the first drafter of the standard.，The standard will be implemented on November 1, 2024.。

XCMG Hydraulic Continuously Lifts RightBasic raw materials for construction machineryR & D breakthrough and deep processing capability，Provide strong support for core components to grasp market initiative，This standard is applicable to hydraulic cylinders of large and kiloton super-large construction machinery.。Since 2012，XCMG Hydraulic R & D Team Leads a Number of Large Steel Pipe Enterprises in China，CoordinatedCold drawnAnd follow upMachiningManufacturing process research，Continuously break through key materials and technologies；2018，At that time, Asia was the most automated.、The cold-drawing machine with the longest stroke was built and put into operation in XCMG Hydraulic，And that production bottleneck of the high-strength thin-wall cylinder barrel cold-drawn pipe is sol.。

GB/T 7939.1-2024

《Hydraulic fluid power connections--Test methods--Part 1：Pipe connector》

This standard specifies for use in hydraulic transmission systems.All kinds of metal pipe joints、Stud end、Flanged pipe jointTest and performance evaluation methods based on，Repetitive assembly is described、Air tightness、Withstand pressure、Blasting、Cyclic endurance pulse、Vacuum、Procedures and requirements for tests such as overload tightening and vibration。XCMG Hydraulics is the first drafter of the standard.，The standard will be implemented on October 1, 2024.。

XCMG Hydraulic Accessories Branch focuses on construction machineryHydraulic hose、Hydraulic rigid pipeAndTransition JointProduct development and manufacturing process research，Hose Assemblies Braided and Wrapped Tubing Product Coverage ID 6.3mmTo 63mm。High product processing precision，And that performance is stable，The joint shall be sealed reliably，Available according to customer needsProvide a complete set of customized solutions。In recent years，Optimization and upgrading of the hydraulic accessories industry of the Division in the hose crimping joint、Homemade hose matching、Breakthroughs have been made in the improvement of lean production.，Lay the foundation for leading the development of hydraulic accessories industry。

 

 

 

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GB/T 2879-2024

《Hydraulic fluid power-cylinders-reciprocating pistons and rods-dimensions and tolerances of one-way sealing ring grooves》

The standard is forHydraulic cylinder piston and piston rodSpecification for the establishment of dimensions and tolerances for the grooves of one-way sealing rings，Specified for cylinder bore 16mmTo 500mmAnd piston rod diameter 6mmTo 450mmDimensions and tolerances of grooves for piston and rod check seals of hydraulic cylinders。The standard will be implemented on October 1, 2024.。

This standard optimizes the dimensional and tolerance-related requirements for reciprocating piston and piston rod unidirectional seal grooves.。XCMG hydraulic cylinder is always anchored“Large tonnage、Long stroke、Thin wall and light weight”The direction of development，Use of high-end CNC scraping roller light、Grinding、Turning and other equipment to ensure product processing accuracy，Tailor-made special sealing system for hydraulic components under different working conditions，Establish a dominant position in the market with industry-leading product strength。

Technical standardization is the key to product development and quality control.，XCMG Hydraulics always grasps the necessary cable to climb the peak of quality，Attach great importance to the technical standardization of key core components。The Division has successively presided over the preparation and revision of national、15 industry standards，Promote through national standards、Product modularization and unified model building、Technical post standard ability appraisal and other series of work，Continuously improve the standard application ability of the R & D team，Build a platform for standardization system，Promote the high-end transformation and upgrading of hydraulic core parts industry with solid technical strength。