EAST AI Hydraulic Manufacturer
Since 2006
Since 2006
Choosing Q355B Skived and Rolled Tube comes with several advantages that make it the preferred choice for hydraulic cylinder manufacturers and engineers:
Q355B steel offers excellent yield strength and impact resistance.
Skived and roller burnished for smooth bore with Ra ≤ 0.4 μm.
≤0.5/1000mm, ensuring perfect piston rod movement.
H8 ~ H10 for accurate assembly and leak-free performance.
Reduced wear and friction, extending hydraulic system lifespan.
Available up to 13 meters or tailored to customer needs.
Perfect for distributors and stockists maintaining inventory.
The versatility of Q355B Skived and Rolled Tube makes it widely used across different industries. Its strength, precision, and performance make it suitable for:
Excavators
Loaders
Concrete pump trucks
Cranes
Hydraulic supports
Drilling rigs
Coal mining machinery
Tractors
Harvesters
Sprayers
Press machines
Injection molding machines
Lifting platforms
Deck machinery
Offshore hydraulic systems
This wide application range ensures that stockists and distributors can meet diverse customer needs with one reliable product line.
At EASTAI, we maintain large-scale production facilities and inventory warehouses to meet urgent orders for Q355B Skived and Rolled Tubes.
Skiving and roller burnishing machines, honing machines, cold drawing machines, straightening machines.
Ready stock of popular sizes for distributors and wholesalers.
From small batches for engineering projects to container-load orders for stockists.
Efficient logistics ensure timely supply worldwide.
Distributors benefit from reduced lead times, while engineering companies gain access to reliable material for ongoing projects.
High-quality seamless steel tubes are carefully selected as the base material to ensure strength, durability, and reliability.
The raw tubes undergo a cold drawing process to achieve the required dimensional accuracy and improved mechanical properties. This step ensures uniformity and precision.
After cold drawing, the tubes are heat treated in a furnace. This enhances toughness, hardness, and stress resistance, preparing the material for further machining.
The tubes are straightened using an advanced straightening machine to eliminate bending or deformation. This ensures a stable foundation for honing or skiving.
Honing: The inner bore is processed with a honing machine to achieve the required surface roughness and precise tolerance.
Skiving & Roller Burnishing: Alternatively, tubes may undergo this process, which cuts the surface and simultaneously compresses it to create an extremely smooth finish and excellent dimensional accuracy.
The inner diameter, roundness, and surface roughness are strictly checked to guarantee smooth bore quality suitable for hydraulic applications.
Comprehensive tests are performed, including dimensional inspection, hardness test, roughness measurement, and hydraulic pressure tests if required by customers.
Tubes are thoroughly cleaned to remove dust, oil, or impurities, and coated with anti-rust oil to protect the inner bore and outer surface.
Finally, honed tubes are packed in strong wooden cases or steel frames with end caps, ensuring safe transport and long-term storage.
Every Q355B Skived and Rolled Tube undergoes strict quality control:
Raw Material Testing
Chemical composition and mechanical property analysis.
Dimensional Inspection
Ensuring H8–H10 tolerance.
Surface Roughness Measurement
Guaranteeing Ra ≤ 0.4 μm.
Straightness Testing – Precision verified ≤0.5/1000mm.
Non-Destructive Testing (NDT)
Ultrasonic and eddy current testing for internal flaws.
This systematic inspection guarantees product performance and durability for end users.
To ensure global market acceptance, EASTAI Q355B Skived and Rolled Tubes comply with international standards and certifications:
These certifications build trust with distributors and stockists, proving consistent and verified quality.
Distributors, stockists, and engineering companies choose EASTAI because we provide:
We don’t just supply tubes – we deliver long-term reliability for your business.
