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FT CASTING
Marine docks are critical infrastructures that face constant exposure to saltwater, heavy mechanical...
Train Casting Steel Parts
Train Casting Steel Hydraulic Cylinder Accessories
The material of hydraulic cylinder accessories should be selected based on the specific accessory type:
Cylinder head material
Cast steel (such as ZG35, ZG45) or cast iron (such as HT200-350) is typically used. If the cylinder head also serves as the piston rod guide, cast iron is often used, with the guide surface clad with a wear-resistant material (such as brass or bronze).
Piston material
Wear-resistant cast iron (such as ductile iron), aluminum alloy, or carbon steel (such as 20#, 35#, and 45# steel) is typically used. Surface treatments (such as nylon or tin bronze alloy coatings) may be used for continuous high-load conditions.
Guide sleeve material
High-precision fit and wear resistance are required. Common materials include wear-resistant cast iron (such as QT400-18), bronze, or brass. Some newer designs use non-metallic materials for improved wear and corrosion resistance.
Other accessories
Sealing components are often made of elastomeric materials (such as K08-ES and S09-ES oil seals). The piston rod is often made of medium-carbon steel (such as 45# steel) to ensure strength and rigidity.
