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HS-6 · Subheading

841231

Engines; pneumatic power engines and motors, linear acting (cylinders)

Heading 8412Engines and motors; n.e.c. (e.g. reaction engines, hydraulic power engines, pneumatic power engines)

Chapter 84: Nuclear reactors, boilers, machinery

Plain-language overview

Use HS-6 841231 when importing or exporting pneumatic power engines and motors, specifically linear acting cylinders. For instance, if you're shipping a pneumatic cylinder used in an assembly line, this is the right code.

This code is distinct from HS-6 841239, which covers other types of pneumatic engines not classified as linear acting. If your product has a different function or design, you may need to consider that code instead.

This classification includes pneumatic cylinders that convert compressed air into mechanical motion. These devices are often used in manufacturing, automation, and robotics applications.

When determining the correct classification, consider the specific design and function of your engine. For example, a double-acting pneumatic cylinder differs from a single-acting one, which may affect your HS code choice.

Keywords & topics

Useful terms traders and brokers use for this HS-6 subheading.

pneumatic power engines · linear acting cylinders · pneumatic motors · compressed air engines · industrial automation · manufacturing equipment · robotics applications · cylinder classification · engine classification · pneumatic actuators · double-acting cylinders · single-acting cylinders · shipping pneumatic engines

Examples

Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.

  • Pneumatic cylinder used in a conveyor system
  • Linear acting pneumatic actuator for robotics
  • Air-powered cylinder for automotive assembly
  • Pneumatic power engine for packaging machinery
  • Single-acting pneumatic cylinder for material handling
  • Double-acting pneumatic cylinder for industrial automation
  • Pneumatic linear motor used in CNC machines

Common questions

Frequent classification questions with short practical guidance.

What is HS code 841231 used for?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to classify pneumatic engines?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

What products fall under HS-6 841231?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Are pneumatic cylinders covered by HS-6 841231?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Differences between HS-6 841231 and 841239?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to determine the right HS code for pneumatic motors?

Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.

What are linear acting pneumatic engines?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Can I use HS-6 841231 for all pneumatic devices?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Related topics

Common real-world topics that come up during code comparison.

How to classify a pneumatic cylinder for customs?

Check the exact product specs and destination-country tariff notes before finalizing the code.

What are the requirements for HS code 841231?

Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.

Examples of products under HS-6 841231

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Differences between pneumatic and hydraulic engines HS codes

Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.

How to determine if my product is a linear acting cylinder?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

What documentation is needed for HS-6 841231?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Can I use HS-6 841231 for pneumatic actuators?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

What is the process for importing pneumatic engines?

Check the exact product specs and destination-country tariff notes before finalizing the code.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of products are classified under HS-6 841231?
HS-6 841231 covers pneumatic power engines and motors specifically designed as linear acting cylinders, often used in industrial applications.
How do I know if my pneumatic device falls under this code?
If your product is a linear acting pneumatic cylinder that converts compressed air into mechanical motion, it likely falls under HS-6 841231.
What is the difference between HS-6 841231 and HS-6 841239?
HS-6 841231 specifically refers to linear acting pneumatic engines, while HS-6 841239 includes other pneumatic engines not classified as linear acting.
Do I need special documentation for shipping under this code?
Yes, you will need to provide appropriate documentation that describes the product, its function, and its classification under HS-6 841231.
Can I use HS-6 841231 for both single and double acting cylinders?
Yes, both single-acting and double-acting pneumatic cylinders can be classified under HS-6 841231, as long as they are linear acting.
What are common applications for products under HS-6 841231?
Common applications include automation in manufacturing, robotics, and material handling systems where linear motion is required.
Is there a specific weight or size limit for products classified under this code?
There are no specific weight or size limits for HS-6 841231; however, ensure compliance with any relevant shipping regulations.
How can I ensure accurate classification for my pneumatic engine?
Review the product specifications, consult with a customs broker, or refer to official trade classification resources to ensure accurate classification.

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