The CK45 Skived and Roller Burnished Tube is a high-precision steel tube that has undergone two crucial machining processes: skiving and roller burnishing. These processes significantly enhance the tube’s surface finish, dimensional accuracy, and mechanical performance, making it ideal for high-performance hydraulic and pneumatic cylinder applications. The base material, CK45 (equivalent to DIN 1.1191 and SAE 1045), is a medium carbon steel widely recognized for its good machinability, wear resistance, and mechanical strength.

Manufactured under strict quality control standards, our CK45 tubes are produced using advanced CNC skiving machines and roller burnishing equipment to deliver a mirror-like internal surface and consistent dimensional tolerances. These tubes are widely used in hydraulic cylinders for construction machinery, agricultural equipment, material handling systems, and industrial automation.

Technical Specifications

Manufacturing Process

1. Raw Material Selection
   The manufacturing process begins with high-grade CK45 seamless steel tubes, sourced from reputable mills. Each tube is inspected for chemical composition and mechanical properties to ensure it meets international standards.
2. Cold Drawing or Honing (if applicable)
   The tubes may undergo a cold drawing or honing process to refine the initial inner diameter and surface structure before skiving.
3. Skiving
   In this process, a rotating cutting tool removes a small layer of metal from the inner surface of the tube. This creates a uniformly smooth internal surface while correcting minor geometric deviations.
4. Roller Burnishing
   Following skiving, the tube undergoes roller burnishing. This cold-working process uses hard rollers to compress the inner surface, resulting in a mirror-like finish, enhanced hardness, and improved surface integrity.
5. Final Inspection and Surface Treatment
   After machining, tubes are cleaned, dried, and coated with anti-rust oil. Every piece is checked for surface roughness, roundness, hardness, straightness, and dimensional tolerances.

Advantages of CK45 Skived and Roller Burnished Tubes

1. Superior Inner Surface Finish

The roller burnishing process reduces surface roughness to Ra ≤ 0.2 μm, resulting in a polished internal surface that minimizes friction and enhances sealing performance. This helps extend the life of the cylinder seals and improve overall efficiency.

2. Enhanced Dimensional Accuracy

The tubes maintain strict tolerance control of H8 for inner diameter, making them ideal for direct use in hydraulic and pneumatic cylinder barrels without additional machining.

3. Improved Wear Resistance

The cold working process during roller burnishing increases surface hardness and fatigue resistance, making the tubes more durable and long-lasting in demanding environments.

4. Reduced Maintenance and Downtime

Thanks to the high-quality surface finish and accurate tolerances, hydraulic systems built with CK45 skived and roller burnished tubes are less prone to leaks and component failures.

5. Ready-to-Use

These tubes are “ready for assembly”—they do not require any further honing or finishing before installation in hydraulic cylinder manufacturing.

Common Applications

Our CK45 skived and roller burnished tubes are trusted by industries across the globe for their reliability and performance. Typical applications include:

• Hydraulic Cylinders
  Used in heavy-duty machinery such as excavators, bulldozers, loaders, and cranes.
• Pneumatic Cylinders
  Suitable for fast-response automation systems and industrial robots.
• Agricultural Equipment
  Utilized in tractors, harvesters, and hydraulic lifting systems.
• Construction Machinery
  Critical for hydraulic systems in concrete pump trucks, pile drivers, and lift platforms.
• Material Handling Systems
  Found in forklifts, lifting arms, and hydraulic lifts for smooth movement and control.
• Mining Equipment
  Ideal for use in harsh environments with high-pressure hydraulic systems.

Quality Control & Testing

Our CK45 skived and roller burnished tubes are subjected to a series of stringent quality checks throughout the production cycle:

• Chemical Composition Test using spectrometers
• Ultrasonic Testing (UT) for internal defects
• Hydrostatic Pressure Testing upon request
• Surface Roughness Measurement with profilometers
• Inner Diameter Gauge with H8 tolerance check
• Straightness Check with laser or digital straightness tools
• Salt Spray Testing (upon request) for rust resistance performance

We are ISO 9001:2015 certified and follow international standards such as DIN 2391, EN 10305, and ASTM A519 in production and quality control.

Packaging & Delivery

To protect your investment and ensure safe delivery, our tubes are:

• Packed in plastic caps to protect the tube ends
• Wrapped in anti-rust VCI film or oiled paper
• Bundled with steel straps and labeled with identification tags
• Optional wooden cases or steel frames for export packaging
• Delivered with mill test certificates, inspection reports, and shipping documents

Lead times typically range from 7 to 20 days depending on order size and custom requirements. We support FOB, CIF, and DDP delivery terms.

Customization Options

We understand that your application may demand specific configurations. That’s why we offer:

• Custom lengths and diameters
• Precision cut-to-length service
• Bore honing or chrome plating (upon request)
• Welded end caps or thread machining
• Stamping and marking with heat numbers or logos

Contact our sales team for technical support or to discuss your custom needs.

Why Choose Us?

As a specialized supplier with over 20 years of experience in the hydraulic industry, we offer:

✅ Superior Raw Materials

We source CK45 steel only from certified mills with strict control over carbon content and purity.

✅ Advanced Machining Equipment

Our plant is equipped with fully automated skiving & roller burnishing machines, laser straightness testers, and CNC length cutting lines.

✅ Inventory & Capacity

Large stock availability of standard sizes and a strong monthly output capacity ensures timely delivery, even for urgent orders.

✅ Quality Assurance

Every tube is individually inspected, and we provide complete traceability with mill test certificates and dimensional reports.

✅ Export Experience

We have served customers across Europe, North America, Southeast Asia, and the Middle East, with excellent feedback on quality and service.

Get a Quote

Whether you need small-batch samples or large-scale orders, our team is ready to assist. Send us your inquiry including:

• Required OD / ID / wall thickness
• Length per piece
• Quantity
• Application details (if available)
• Surface treatment preferences

We’ll respond within 24 hours with a competitive offer.

Contact Us Today

Email: info@east-ai.com
Website: https://east-ai.com

Let us support your business with precision tubes you can rely on.