1.In-depth technical docking (clarify all requirements for process, precision, and working conditions)
2.Scheme drawing confirmation (complete design, conduct joint review, and calculate safety factor)
3.Prototype trial production and verification (physical testing, performance compliance, and customer confirmation)
4.Mass order production (launch mass production, ensure consistent quality, and deliver on time)

Material Selection and Pretreatment: Select high-quality seamless steel pipes, straighten them, and cut them to fixed lengths.
Inner Hole Honing: Use CNC honing on the inner wall to achieve high precision and mirror finish, reducing wear.
Outer Circle Precision Grinding: Perform precision grinding on the outer circle to ensure dimensional accuracy, straightness, and fitting precision.
End Processing: Complete turning of steps, threading, chamfering, and drilling to ensure connection and functionality.

Functional Integration and Precision Manufacturing: For the piston rod, we adopt the "quenching and tempering + precision grinding + hard chrome plating" process to ensure its wear resistance and corrosion resistance; the piston and guide sleeve are precisely turned by CNC to ensure the dimensional accuracy of the sealing groove and installation position, achieving reliable sealing and smooth guidance.
Strength and Reliability of Structural Components: As the key parts for pressure-bearing sealing and installation of the hydraulic cylinder, the cylinder bottom and flange ensure their structural strength, the position accuracy of threaded holes, and the flatness of the sealing surface through precision processing, forming a solid framework for the hydraulic cylinder.

The core of this spraying line lies in the precise synergy of four key technologies: sandblasting creates an optimal adhesion base, cleaning ensures construction cleanliness, spraying controls the uniformity of the paint film, and constant-temperature drying guarantees complete curing of the coating.
The synergy of these four technologies ultimately achieves high-quality standards of uniform coating thickness, strong adhesion, and excellent durability, comprehensively improving the appearance quality and environmental adaptability of the hydraulic cylinder.

Youjiaxin conducts strict tensile tests on the core materials of hydraulic cylinders. Using an electronic universal testing machine, it accurately measures key mechanical properties such as yield strength and tensile strength, eliminating potential risks from the source. This ensures the products inherently possess the capability to withstand extreme working conditions and provide a solid and reliable power core for equipment.

Youjiaxin utilizes metallographic analysis technology to accurately inspect the microstructure of materials. By evaluating grain size and identifying defects, we verify the heat treatment process and ensure material performance, fundamentally guaranteeing the strength, toughness, and long-term reliability of hydraulic cylinders.

Youjiaxin conducts precise hardness testing on the core components of hydraulic cylinders. Through scientific measurement, it verifies the material strength and wear resistance, screens for heat treatment defects, ensures the products have excellent pressure resistance and wear resistance, and guarantees the durability and long-term reliability of the hydraulic cylinders.

Youjiaxin conducts a strict pressure test on each hydraulic cylinder, pressurizing it to 1.25-1.5 times the rated pressure and maintaining the pressure. This fully inspects the cylinder block's strength and sealing performance, ensuring no leakage or deformation, thereby guaranteeing the product's safety and durability.

Youjiaxin conducts professional oil analysis to accurately test key indicators of oil, such as cleanliness, viscosity, and wear particles. We systematically evaluate the oil condition, helping customers shift from passive maintenance to active prevention, which significantly improves the reliability of hydraulic systems and extends the service life of core components.

Youjiaxin adopts ultrasonic testing technology, using high-frequency sound waves to accurately detect internal defects such as slag inclusions, air holes, and microcracks in the core components of hydraulic cylinders. This ensures material and welding quality, eliminates potential safety hazards from the source, and guarantees the structural integrity and reliability of the hydraulic cylinders.