EAST AI Hydraulic Manufacturer
Since 2006
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Q355D
EAST AI
Q355D
Max. 13m
H8~H10
0.5/1000
Hydraulic cylinders for mobile equipment, industrial machinery, and heavy-duty systems
Wooden cases
≤0.4u
Product Description
Achieves roughness up to Ra 0.2–0.4 μm, minimizing seal wear.
Tight tolerance on ID, straightness, and roundness ensures easy cylinder assembly.
Q355B steel grade provides excellent yield strength and impact resistance.
Smooth bore reduces friction and enhances efficiency.
Anti-rust oil coating and protective packaging ensure long-term storage without damage.
Available in large stock with flexible length cutting services.
Compatible with hydraulic cylinders, pneumatic cylinders, lifting equipment, and construction machinery.
The production of Skived and Roller Burnished Tubes follows a precise sequence to guarantee accuracy and quality:
High-quality Q355B seamless steel tubes are selected.
Tubes are cold drawn to achieve required size and improve strength.
Stress relieving and normalization improve toughness and durability.
Correcting bending and ensuring straightness.
Inner surface is cut to remove material and achieve initial tolerance.
Surface is compressed to achieve mirror-like finish and high dimensional accuracy.
Bore size, roundness, surface finish, and straightness are checked.
Tubes are cleaned and coated with protective oil.
Wooden cases or steel frames with plastic end caps ensure safe delivery.
This process ensures that Q355B SRB Tubes meet the strictest hydraulic cylinder requirements.
Q355B SRB Tubes are widely used in hydraulic and mechanical engineering fields, including:
Construction machinery, agricultural equipment, mining equipment.
Air compressors and automation systems.
Forklifts, aerial work platforms, cranes.
Excavators, bulldozers, loaders.
Press machines, injection molding machines.
Hydraulic systems for shipbuilding and offshore drilling platforms.
Our factory maintains a large inventory of Q355B Skived and Rolled Tubes, ensuring fast delivery and flexible supply for both small and bulk orders.
Standard dimensions are always available.
Cutting, machining, and special size production.
Advanced skiving and roller burnishing machines enable monthly production of thousands of tons.
Reliable packing methods guarantee safe transport to overseas distributors and stockists.
To ensure top quality, every batch of Q355B SRB Tubes undergoes rigorous inspections:
Outer diameter, inner diameter, and wall thickness.
Ensuring Ra ≤ 0.4 μm.
Ensuring tubes meet ISO standard.
Detecting internal defects.
Ensuring safe performance under working pressure.
For corrosion resistance evaluation.
Our Q355B Skived and Rolled Tubes are certified by international standards and classification societies, ensuring trust and reliability for global customers:
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