HS Code for Hydraulic ram

The classification of a hydraulic ram under HS code 8412.21 is based on its fundamental mechanical function as a linear acting hydraulic power engine. These devices, commonly referred to as hydraulic cylinders, are designed to convert the energy of pressurized hydraulic fluid into a straight-line mechanical force and motion. According to the General Rules of Interpretation (GRI), products are classified based on the terms of the headings and any relative section or chapter notes. Heading 8412 covers other engines and motors, and subheading 8412.21 specifically identifies those that are hydraulic and linear acting. This distinguishes them from rotary hydraulic motors, which would fall under a different subheading. The ram consists of a cylinder barrel, a piston, and a piston rod, and its operation is essential in various industrial sectors, including construction machinery, manufacturing presses, and aerospace actuators. Because the primary output is linear mechanical energy derived from fluid pressure, it fits perfectly within this specific HS designation.

Products Included

• Single-acting hydraulic cylinders
• Double-acting hydraulic cylinders
• Telescopic hydraulic rams
• Differential cylinders
• Plunger-type hydraulic rams

Common Misclassification

Hydraulic rams are frequently misclassified under HS code 8413. This code refers to pumps for liquids. While a pump is necessary to provide the pressurized fluid to the ram, the ram itself is an engine/motor that consumes that pressure to perform work, not a pump that creates flow. Another common error is using HS code 8412.29, which is reserved for hydraulic power engines that are not linear acting, such as hydraulic motors that produce rotary motion.

FAQ

What is the HS code for hydraulic ram?

The HS code for a linear acting hydraulic ram is 8412.21.

Does this code include the hydraulic pump?

No, hydraulic pumps are classified separately under heading 8413, as they serve a different mechanical purpose than the ram.