Stainless Steel/Steel Hydraulic Cylinder Hollow Piston Rod

The hollow oil pipe is a precision-engineered tube designed to combine high structural strength with efficient fluid transmission. It is widely used in hydraulic systems, construction machinery, petroleum equipment, and other industrial applications where stable oil flow and pressure resistance are critical.
A variety of high-quality materials are available, including 45# steel, 40Cr, 42CrMo, and stainless steel. These material options allow the hollow oil pipe to achieve an optimal balance of strength, toughness, and wear resistance, ensuring reliable performance under high pressure, cyclic loads, and demanding operating conditions.
With accuracy grades ranging from F5 to F9, the hollow oil pipe features strict dimensional control on both inner and outer diameters. Excellent straightness and roundness ensure precise fitting, reliable sealing, and long-term stability in high-precision hydraulic and oil transfer systems.
The outer surface can be hard chrome plated with a thickness from 0.010mm to 0.10mm. This surface treatment significantly enhances wear resistance, corrosion resistance, and surface smoothness, making the product especially suitable for harsh environments involving high friction, contamination, or corrosive media.
The hollow oil pipe is available in diameters from Φ20 to Φ500, covering a wide range of specifications. Precision machining according to customer drawings is supported, allowing customized dimensions, tolerances, and structures to meet specific application and engineering requirements.