A Wear-Resistant Inner Wall for Cylinder Systems
Cylinder systems require a strong and wear-resistant inner surface to ensure stable operation under continuous pressure. We have been manufacturing cylinder sleeves since 2011 and have supplied cylinder sleeve components for Sany Heavy Industry. Their hydraulic systems operate under high pressure and demanding working conditions.
This Automotive Cylinder Sleeve is used in hydraulic cylinders, pneumatic cylinders, compressors, and various reciprocating power systems. It is designed to provide wear resistance, sealing stability, and long service life under repeated motion and pressure cycles.
Materials include 20# steel, 45# steel, 40Cr alloy steel, ductile iron, and alloy cast iron, selected to match different strength and wear-resistance requirements.
Precision Manufacturing Data for Cylinder Applications
Inner diameter tolerance is controlled at IT5–IT7 grade to ensure precise fit and stable sealing performance.
Roundness and cylindricity are maintained within ≤0.005 mm to guarantee smooth piston movement and reduce friction.
Inner wall surface roughness is controlled at Ra ≤ 0.4–0.8 μm to improve sealing and reduce wear.
Working pressure range is 0.2 to 32 MPa, suitable for both low-pressure pneumatic and high-pressure hydraulic systems.
Operating temperature range is -40°C to 220°C, supporting both low-temperature environments and high-heat industrial operation.
Wall thickness ranges from 2 to 15 mm depending on application requirements.
Surface treatments include inner bore hardening, phosphate coating, hard chrome plating, and anti-rust treatment to enhance durability and corrosion resistance.

Durable Sleeve Solution for Fluid Power Systems
We do not only provide metal tubes-we deliver reliable structural components for fluid power systems.
This Automotive Cylinder Sleeve is widely used in hydraulic cylinders, pneumatic cylinders, air compressors, engine cylinders, and custom reciprocating equipment.
It is suitable for applications requiring high wear resistance, precise sealing, and long-term dimensional stability.
With over a decade of manufacturing experience since 2011, we focus on producing cylinder sleeves that perform reliably under high pressure and continuous operation.

Core Parameters
|
Parameter |
Specification / Range |
|
Material |
20# Steel / 45# Steel / 40Cr / Ductile Iron / Alloy Cast Iron |
|
Inner Diameter Tolerance |
IT5–IT7 Grade |
|
Roundness / Cylindricity |
≤0.005 mm |
|
Inner Wall Surface Roughness |
Ra ≤ 0.4–0.8 μm |
|
Working Pressure |
0.2–32 MPa |
|
Working Temperature |
-40°C to 220°C |
|
Wall Thickness |
2–15 mm |
|
Surface Treatment |
Inner Bore Hardening / Phosphate / Hard Chrome Plating / Anti-rust Treatment |
|
Application |
Hydraulic Cylinder / Pneumatic Cylinder / Air Compressor / Engine Cylinder / Reciprocating Systems |
|
Standard |
Industrial Cylinder Component Requirements |
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