Find HS Code and trade information for compressor

Compressor

A compressor is a mechanical device that reduces the volume of a gas, thereby increasing its pressure. This process is essential in a wide range of applications, from refrigeration and air conditioning to industrial manufacturing and pneumatic systems.

Material

Compressors are constructed from a variety of materials depending on the application and the gas being compressed. Common materials include:

• Cast Iron: Often used for compressor cylinders and housings due to its durability and cost-effectiveness.
• Steel Alloys: Employed for pistons, connecting rods, and valves, offering high strength and resistance to wear.
• Aluminum: Utilized for housings and cylinders in lighter-duty applications, providing good heat dissipation and corrosion resistance.
• Polymers & Composites: Found in certain components like seals and bearings for reduced friction and noise.
• Lubricants: Mineral oil, synthetic oil, or specialized fluids are critical for reducing friction, cooling, and sealing within the compressor.

Purpose

The primary purpose of a compressor is to increase the pressure of a gas. This increased pressure enables several functionalities:

• Cooling: In refrigeration and air conditioning, compressors circulate refrigerant, enabling heat transfer.
• Pneumatic Power: Compressors provide compressed air for powering tools, machinery, and automation systems.
• Gas Transport: Compressors facilitate the efficient movement of gases through pipelines.
• Process Applications: Used in chemical processing, manufacturing, and other industries requiring controlled gas pressures.

Function

Compressors operate by reducing the volume of gas, which, according to Boyle's Law, results in an increase in pressure. The fundamental steps are:

1. Intake: The compressor draws gas into a chamber.
2. Compression: The volume of the chamber is reduced, compressing the gas.
3. Discharge: The compressed gas is expelled from the compressor at a higher pressure.

Different compressor types achieve these steps using varying mechanisms.

Usage Scenarios

Compressors are found in numerous applications:

• HVAC Systems: Refrigerators, air conditioners, heat pumps.
• Automotive: Air conditioning systems, turbochargers (using a compressor to increase engine power).
• Industrial Manufacturing: Powering pneumatic tools, operating machinery, process control.
• Oil and Gas Industry: Pipeline transport, gas processing.
• Medical: Ventilators, oxygen concentrators.
• Spray Painting: Providing compressed air for atomizing paint.
• Scuba Diving: Compressing air into tanks.

Common Types

• Reciprocating Compressors: Utilize pistons moving back and forth within cylinders to compress gas. Common in smaller applications and general-purpose use.
• Rotary Screw Compressors: Employ two intermeshing screws to compress gas. Known for efficiency and continuous operation, often used in industrial settings.
• Centrifugal Compressors: Use a rotating impeller to accelerate gas outwards, converting kinetic energy into pressure. Suitable for large-volume, high-flow applications.
• Scroll Compressors: Utilize two interleaved spiral-shaped scrolls to compress gas. Quiet operation and high efficiency, commonly found in HVAC systems.
• Axial Compressors: Employ rotating blades to compress gas along an axis. Used in jet engines and large industrial applications.
• Diaphragm Compressors: Utilize a reciprocating diaphragm to compress gas. Suitable for handling corrosive gases and high-pressure applications.
• Turbocompressors: Utilize exhaust gas to drive a turbine connected to a compressor, increasing engine power.

Based on the provided information, the following HS codes are relevant to “compressor”:

• 8479899560: Machines and mechanical appliances having individual functions, not specified or included elsewhere in this chapter; parts thereof: Other machines and mechanical appliances: Other: Other Automotive maintenance machines. This code covers machines and appliances with specific functions, not detailed elsewhere. Specifically, it includes automotive maintenance machines.

  • 84: Chapter 84 – Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 79: Heading 79 – Machinery for the working of stone, earth, metal, and other materials; parts thereof.
  • 89: Subheading 89 – Other machines and mechanical appliances.
  • 95: Further breakdown specifying other automotive maintenance machines.
  • 60: Specific code for this category.

• 8479899560: Machines and mechanical appliances having individual functions, not specified or included elsewhere in this chapter; parts thereof: Other machines and mechanical appliances: Other: Other Automotive maintenance machines. This is a duplicate entry, reinforcing the classification of automotive maintenance machines. The tax details are: Basic tariff: 2.5%, Additional tariff: 0.0%, Additional tariff after 2025.4.2: 30.0%. Total tariff: 32.5%.

Regarding HS code 8479899560, please note that it specifically relates to automotive maintenance machines. Ensure the compressor is indeed used for automotive maintenance to correctly apply this code. The total tariff is 32.5%, comprising a 2.5% basic tariff and an additional 30% tariff effective after April 2, 2025.