Cylinder liner is a cylindrical component that forms the inner surface of an engine cylinder, providing wear resistance and heat transfer.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hardness | 180-300 HB | |
| Inner Diameter | 50-200 mm (varies by engine) | |
| Wall Thickness | 2-10 mm | |
| Surface Roughness | Ra 0.2-0.8 μm | |
| Thermal Conductivity | 40-80 W/m·K |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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The primary functions are to provide a wear-resistant surface for piston movement, transfer heat from combustion to the cooling system, maintain cylinder geometry, and ensure proper sealing of combustion gases.
Yes, worn cylinder liners can be replaced through engine rebuilding processes. This is more cost-effective than replacing entire engine blocks and extends engine service life.
Common causes include excessive wear from poor lubrication, overheating leading to thermal cracking, cavitation erosion from coolant pressure fluctuations, and corrosion from combustion byproducts.
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