Chapter 84 is a broad category in the HS classification system covering mechanical appliances, machinery and their parts, including power machinery, agricultural machinery, machine tools, office equipment, lifting and handling equipment, etc. The core logic of this chapter is 'machines' rather than 'articles', i.e., mechanical devices with independent functions or their dedicated parts. Heading 8431, as a parts heading under this chapter, is specifically used to classify parts of various machines, but it should be noted that not all machine parts are classified under this chapter; some parts may be classified under other chapters according to material or function. Heading 8431 covers parts of various machines, including lifts, cranes, handling machinery, excavating machinery, etc. Its scope explicitly includes parts of lifts, escalators and moving walkways under subheading 8431.31. This heading emphasizes that parts must be dedicated to or mainly used with the above-mentioned machines and cannot be classified under other more specific headings. If a part has an independent function or is a general-purpose part, it may be excluded. The first 2 digits 84: represent Chapter 84, i.e., nuclear reactors, boilers, machinery, mechanical appliances and their parts. The 3rd-4th digits 31: represent heading 8431, i.e., parts suitable for use solely or principally with the machinery of headings 8425 to 8430. The 5th-6th digits 31: represent subheading 8431.31, further limited to parts of lifts, escalators and moving walkways. Therefore, the complete meaning of 843131 is: under Chapter 84, parts suitable for use solely with lifts, escalators and moving walkways. The goods are lift parts, belonging to components dedicated to lifts, meeting the description of subheading 8431.31. If a part has an independent function (such as a motor or pump), it should be classified under other headings; if it is a general-purpose part (such as bolts or springs), it should be classified according to material. Therefore, only parts dedicated to lifts and not more specifically classified elsewhere are classified under this code.
Chapter
Chapter 84 is a broad category in the HS classification system covering mechanical appliances, machinery and their parts, including power machinery, agricultural machinery, machine tools, office equipment, lifting and handling equipment, etc. The core logic of this chapter is 'machines' rather than 'articles', i.e., mechanical devices with independent functions or their dedicated parts. Heading 8431, as a parts heading under this chapter, is specifically used to classify parts of various machines, but it should be noted that not all machine parts are classified under this chapter; some parts may be classified under other chapters according to material or function.
Heading
Heading 8431 covers parts of various machines, including lifts, cranes, handling machinery, excavating machinery, etc. Its scope explicitly includes parts of lifts, escalators and moving walkways under subheading 8431.31. This heading emphasizes that parts must be dedicated to or mainly used with the above-mentioned machines and cannot be classified under other more specific headings. If a part has an independent function or is a general-purpose part, it may be excluded.
Digit Breakdown
The first 2 digits 84: represent Chapter 84, i.e., nuclear reactors, boilers, machinery, mechanical appliances and their parts. The 3rd-4th digits 31: represent heading 8431, i.e., parts suitable for use solely or principally with the machinery of headings 8425 to 8430. The 5th-6th digits 31: represent subheading 8431.31, further limited to parts of lifts, escalators and moving walkways. Therefore, the complete meaning of 843131 is: under Chapter 84, parts suitable for use solely with lifts, escalators and moving walkways.
Classification Basis
The goods are lift parts, belonging to components dedicated to lifts, meeting the description of subheading 8431.31. If a part has an independent function (such as a motor or pump), it should be classified under other headings; if it is a general-purpose part (such as bolts or springs), it should be classified according to material. Therefore, only parts dedicated to lifts and not more specifically classified elsewhere are classified under this code.
📝 Declaration Elements
Product Name: The specific name of the declared commodity, which should accurately reflect the purpose and material of the part, such as 'elevator door operator controller', 'lift guide rail', etc. Purpose: Explain what equipment the part is dedicated to, such as 'for lifts', 'for escalators', etc., which must be consistent with the HS code description. Material: The main constituent materials, such as steel, iron, plastic, rubber, etc., which affect whether classification is based on material. Brand: The manufacturer or brand name, used to identify the source of goods and intellectual property status. Model: The model or specification of the product, facilitating customs confirmation of the uniqueness of the commodity. Working Principle: Briefly explain the functional principle of the part in the equipment, such as 'controls elevator door opening and closing', 'provides lifting power', etc. Is It a Dedicated Part: Clearly declare whether the part is dedicated to lifts or can be used for other equipment. Product Name: Elevator door operator controller; Purpose: Dedicated to lift door system; Material: Plastic housing + electronic components; Brand: OTIS; Model: GECB-3; Working Principle: Receives signals to control door motor opening and closing; Is It a Dedicated Part: Yes. Incorrectly classifying general-purpose parts (such as bolts) under 843131; they should be classified according to material. Failure to clearly declare dedication, leading to customs questioning the classification. Ignoring whether the part has an independent function, such as motors which should be classified under 8501.
Product Name
The specific name of the declared commodity, which should accurately reflect the purpose and material of the part, such as 'elevator door operator controller', 'lift guide rail', etc.
⚠️ Writing only 'elevator parts' is too general and may require supplementation with a specific name.
Purpose
Explain what equipment the part is dedicated to, such as 'for lifts', 'for escalators', etc., which must be consistent with the HS code description.
⚠️ Incorrectly declaring as 'general-purpose mechanical parts', leading to classification disputes.
Material
The main constituent materials, such as steel, iron, plastic, rubber, etc., which affect whether classification is based on material.
⚠️ Ignoring material declaration may lead to customs questioning the classification.
Brand
The manufacturer or brand name, used to identify the source of goods and intellectual property status.
⚠️ Failure to declare the brand or inaccurate declaration may involve infringement.
Model
The model or specification of the product, facilitating customs confirmation of the uniqueness of the commodity.
⚠️ Incorrect or missing model information affects customs clearance efficiency.
Working Principle
Briefly explain the functional principle of the part in the equipment, such as 'controls elevator door opening and closing', 'provides lifting power', etc.
⚠️ The description is too simple to determine whether it is dedicated to lifts.
Is It a Dedicated Part
Clearly declare whether the part is dedicated to lifts or can be used for other equipment.
⚠️ Declaring a general-purpose part as dedicated, leading to classification errors.
Example： Product Name: Elevator door operator controller; Purpose: Dedicated to lift door system; Material: Plastic housing + electronic components; Brand: OTIS; Model: GECB-3; Working Principle: Receives signals to control door motor opening and closing; Is It a Dedicated Part: Yes.
Common Mistakes：
Incorrectly classifying general-purpose parts (such as bolts) under 843131; they should be classified according to material.
Failure to clearly declare dedication, leading to customs questioning the classification.
Ignoring whether the part has an independent function, such as motors which should be classified under 8501.
🎯 Classification Logic
The core basis for classification is whether the part is dedicated to or mainly used with lifts, escalators and moving walkways. According to the chapter notes of Chapter 84 and the heading text of 8431, only parts meeting the 'dedicated' condition are classified under 843131. If a part is general-purpose or has an independent function, it is classified under other headings. Reference should also be made to the detailed explanations of 8431 in the 'Explanatory Notes to the Harmonized Commodity Description and Coding System'. 843139 Parts of other lifting and handling equipment: 843139 covers parts of other lifting and handling equipment not elsewhere specified, such as cranes and handling machinery parts, while 843131 is limited to parts of lifts, escalators and moving walkways. 8501 Electric motors: If an electric motor is used as a lift part but has an independent function, it should be classified under 8501, not 843131. 7318 Iron or steel bolts: General-purpose fasteners, even if used in lifts, should be classified under 7318 according to material, unless they are specially shaped for specific use. 8483 Transmission devices: Transmission elements such as bearings and gears, if general-purpose, are classified under 8483; if dedicated to lifts, they may be classified under 843131. Is the part dedicated to lifts? Does the part have an independent function? Is the part a general-purpose item? Can it be classified under another more specific heading? Should it be classified according to material?
Basis
The core basis for classification is whether the part is dedicated to or mainly used with lifts, escalators and moving walkways. According to the chapter notes of Chapter 84 and the heading text of 8431, only parts meeting the 'dedicated' condition are classified under 843131. If a part is general-purpose or has an independent function, it is classified under other headings. Reference should also be made to the detailed explanations of 8431 in the 'Explanatory Notes to the Harmonized Commodity Description and Coding System'.
Confused Codes：
843139 - Parts of other lifting and handling equipment
843139 covers parts of other lifting and handling equipment not elsewhere specified, such as cranes and handling machinery parts, while 843131 is limited to parts of lifts, escalators and moving walkways.
8501 - Electric motors
If an electric motor is used as a lift part but has an independent function, it should be classified under 8501, not 843131.
7318 - Iron or steel bolts
General-purpose fasteners, even if used in lifts, should be classified under 7318 according to material, unless they are specially shaped for specific use.
8483 - Transmission devices
Transmission elements such as bearings and gears, if general-purpose, are classified under 8483; if dedicated to lifts, they may be classified under 843131.
Self-Check：
✓ Is the part dedicated to lifts?
✓ Does the part have an independent function?
✓ Is the part a general-purpose item?
✓ Can it be classified under another more specific heading?
✓ Should it be classified according to material?
❓ FAQ
What is the difference between 843131 and 843139? 843131 specifically refers to parts of lifts, escalators and moving walkways; 843139 covers parts of other lifting and handling equipment (such as cranes and handling vehicles). Classification should be determined based on the type of main machine. Should bolts used in elevators be classified under 843131? No. Bolts are general-purpose fasteners, and even if dedicated to elevators, they should be classified under 7318 according to material. Only specially designed dedicated parts are classified under 843131. Which code should elevator motors be classified under? Elevator motors have independent functions and should be classified under 8501 as electric motors, not 843131. However, if the motor is integrated with the elevator system and cannot be separated, it may be classified as a complete machine. How to determine whether a part is 'dedicated'? Dedicated parts refer to parts that, in design, shape and performance, can only be used with or mainly used with lifts and cannot be used for other equipment. Product manuals, technical drawings and industry standards can be referenced. Should escalator handrails be classified under 843131? Yes. Handrails are dedicated to escalators and have no other more specific heading, so they should be classified under 843131. However, it should be confirmed whether the material affects classification. What are the declaration elements for 843131? Generally include product name, purpose, material, brand, model, working principle, whether it is a dedicated part, etc. Specific requirements are subject to customs; it is recommended to refer to the 'Standard Declaration Catalog'. What documents are required for importing elevator parts? Generally, contracts, invoices, packing lists, bills of lading, declaration elements, etc. are required. If 3C certification or special equipment is involved, relevant certificates are also required. How to check the tariff rate for 843131? You can log on to the website of the General Administration of Customs of China or use the 'Customs Tariff' to check. Tariff rates are adjusted with policies; it is recommended to refer to the latest publication.
Q: What is the difference between 843131 and 843139?
A: 843131 specifically refers to parts of lifts, escalators and moving walkways; 843139 covers parts of other lifting and handling equipment (such as cranes and handling vehicles). Classification should be determined based on the type of main machine.
Q: Should bolts used in elevators be classified under 843131?
A: No. Bolts are general-purpose fasteners, and even if dedicated to elevators, they should be classified under 7318 according to material. Only specially designed dedicated parts are classified under 843131.
Q: Which code should elevator motors be classified under?
A: Elevator motors have independent functions and should be classified under 8501 as electric motors, not 843131. However, if the motor is integrated with the elevator system and cannot be separated, it may be classified as a complete machine.
Q: How to determine whether a part is 'dedicated'?
A: Dedicated parts refer to parts that, in design, shape and performance, can only be used with or mainly used with lifts and cannot be used for other equipment. Product manuals, technical drawings and industry standards can be referenced.
Q: Should escalator handrails be classified under 843131?
A: Yes. Handrails are dedicated to escalators and have no other more specific heading, so they should be classified under 843131. However, it should be confirmed whether the material affects classification.
Q: What are the declaration elements for 843131?
A: Generally include product name, purpose, material, brand, model, working principle, whether it is a dedicated part, etc. Specific requirements are subject to customs; it is recommended to refer to the 'Standard Declaration Catalog'.
Q: What documents are required for importing elevator parts?
A: Generally, contracts, invoices, packing lists, bills of lading, declaration elements, etc. are required. If 3C certification or special equipment is involved, relevant certificates are also required.
Q: How to check the tariff rate for 843131?
A: You can log on to the website of the General Administration of Customs of China or use the 'Customs Tariff' to check. Tariff rates are adjusted with policies; it is recommended to refer to the latest publication.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.