Hydraulic cylinders power a range of industries, from agriculture to mining to construction and aerospace. Because they must withstand immense pressure, the different materials they’re constructed from are solid and durable. Below are the most commonly utilized materials used in hydraulic cylinder servicing and production:
Hydraulic Cylinder Barrel
The cylinder barrel is a key component of a hydraulic cylinder, typically made from cold-rolled or honed seamless steel or carbon steel tubing. Cylinder tubes hold and contain the cylinder’s pressure and house all parts essential for its functioning.
Glands & Pistons
The style of cylinder piston rods and glands is influenced by various design requirements, loading, and pressure. The standard material used for the barrel is high-tensile SAE C1026 or St52 cold-drawn honed tubes for increased seal life. Other piston rod options include 4140, aluminum, and stainless steel.
Wiper, Rod, and Piston Seals
Pressure characteristics, durability, operating, and environmental temperatures influence the size and type of rod seal and piston seal used. Materials utilized for a static seal can range from high-performance polyurethane and nitrile rubber to fluoro rubber, ethylene propylene diene, silicone, and resin-bonded fabric composite or polyester elastomer.
Shafts
Several shaft considerations are needed, such as speed, displacement requirements, retraction forces, loads, and corrosion resistance. Various materials are available, including chrome-plated, chrome-over stainless steel, nitrided, chrome-over-nickel, and high-strength alternatives.
