EAST AI Hydraulic Manufacturer
Since 2006
Since 2006
E355 Skived and Rolled Tube is made from high-strength, low-alloy E355 (St52) steel and processed through skiving and roller burnishing, resulting in a smooth inner surface and tight dimensional tolerance. This manufacturing process improves straightness, hardness, and internal finish, making the tube ideal for hydraulic systems requiring consistent and reliable performance.
These tubes are often referred to as Skived Burnishied Tube, Skived and Roller Burnished Tube, or Finished Bore Tube, reflecting their high surface quality and application-ready finish. The inner diameter typically meets ISO H8 tolerance, while the surface roughness reaches Ra ≤ 0.4 μm, ensuring minimal wear on piston seals and smooth operation.
| Parameter | Specification |
|---|---|
| Material | E355 Alloy Steel |
| Tube Type | Skived and Rolled Tube |
| Surface Finish | Bore-Finished, Smooth |
| Diameter Tolerance | H8–H10 |
| Surface Roughness | Ra ≤ 0.4 µm |
| Straightness | 0.5/1000 |
| Maximum Length | Up to 13 meters or customized |
| Application | Hydraulic cylinders, industrial machinery, mobile equipment |
With a honed-like or better-than-honed finish, the inner bore minimizes seal friction and wear. This means less downtime and longer component life.
As a Finished Bore Tube, no additional honing is needed before assembly, reducing machining time and cost.
Skiving and rolling achieve excellent concentricity and roundness, allowing seamless integration in precision hydraulic cylinders.
E355 steel offers high strength with good elongation, making it suitable for dynamic and heavy-duty hydraulic applications.
The E355 Skived and Rolled Tube is widely used across various industries, including:
For single and double-acting hydraulic systems.
Excavators, loaders, and cranes requiring precise cylinder barrels.
Press machines, injection molding machines, and heavy-duty automation systems.
Agricultural equipment, forestry machines, and material handling vehicles.
Applications requiring long, straight, and wear-resistant hydraulic tubes.
This tube is designed for distributors, stockists, and engineering contractors who demand reliable and high-quality hydraulic components.
The E355 Skived and Rolled Tube undergoes a comprehensive production process to achieve high-quality performance:
Removes material in a controlled manner to achieve precise diameter and smooth surface.
Polishes the inner bore for low friction and excellent wear resistance.
H8-H10 tolerance ensures a perfect fit for piston rods.
Up to 13 meters or per client specifications for long-stroke cylinders.
Ra ≤ 0.4 µm for minimal friction and extended hydraulic cylinder life.
Each E355 Skived and Rolled Tube is subjected to strict quality control procedures:
Dimensional Accuracy Check
Bore diameter and straightness verified using precision gauges.
Surface Roughness Inspection
Ensures Ra ≤ 0.4 µm.
Roundness Measurement
Guarantees optimal piston rod fit and minimal leakage.
Mechanical Testing
Tensile strength and fatigue resistance validated.
Non-Destructive Testing
Optional ultrasonic or magnetic particle inspection for critical projects.
These measures ensure reliable performance, longevity, and minimal maintenance in hydraulic systems.
Quality management system certification.
Chemical composition, tensile strength, and hardness certificates.
Ensures material compliance for industrial hydraulic applications.
Diameter, roundness, surface roughness, and straightness testing.
Certificates can be displayed with images to provide trust and authenticity for distributors and engineering contractors.
For distributors, stockists, and engineering contractors seeking E355 Skived and Rolled Tube, please contact our sales team for availability, specifications, and pricing. We provide fast delivery, technical support, and customized solutions to meet your hydraulic system requirements.