HS Code for Hydraulic cylinder

Hydraulic cylinders are classified under HS code 8412.21 because they are defined as linear acting hydraulic power engines. Heading 8412 encompasses other engines and motors, and the sub-heading 8412.21 specifically addresses those that operate using hydraulic fluid to produce motion in a straight line. These components are essential in fluid power systems, where they convert the hydrostatic energy of a pressurized fluid into mechanical work. The classification remains consistent whether the cylinder is single-acting, where fluid pressure acts on one side, or double-acting, where fluid acts on both sides to extend and retract. It is important to note that for a product to be classified here, it must be a complete power unit capable of performing work, rather than just a housing or a part. The linear action is the defining characteristic that separates these from rotary hydraulic motors. These cylinders are found in a vast array of machinery, from construction equipment like excavators to industrial presses and aerospace landing gear.

Products Included

• Single-acting hydraulic cylinders.
• Double-acting hydraulic cylinders.
• Telescopic hydraulic cylinders for long-stroke applications.
• Differential cylinders used in industrial machinery.
• Plunger cylinders for high-pressure lifting.

Common Misclassification

A frequent misclassification occurs with HS code 8413, which covers hydraulic pumps. While both are part of a hydraulic system, pumps move fluid, whereas cylinders (8412.21) use that fluid to create motion. Another common error is 8425.42, which is for hydraulic jacks. If a cylinder is imported as a standalone component, it is 8412.21; if it is integrated into a complete lifting jack, it takes the jack's code. Finally, parts of cylinders, such as pistons or rods, should be classified under 8412.90 rather than the code for the complete cylinder.

FAQ

What is the HS code for hydraulic cylinder?

The HS code for a linear acting hydraulic cylinder is 8412.21. This applies to both single and double-acting types used in various industrial applications.

Is a hydraulic motor classified under the same code as a cylinder?

No, while both are in heading 8412, hydraulic motors that produce rotary motion are classified under HS code 8412.29, whereas cylinders (linear motion) are 8412.21.