HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
6804224000 | Doc | 55.0% | CN | US | 2025-05-12 |
6804226000 | Doc | 55.0% | CN | US | 2025-05-12 |
6815910011 | Doc | 55.0% | CN | US | 2025-05-12 |
6815910071 | Doc | 55.0% | CN | US | 2025-05-12 |
8205595560 | Doc | 60.3% | CN | US | 2025-05-12 |
8205517500 | Doc | 58.7% | CN | US | 2025-05-12 |
8207907545 | Doc | 33.7% | CN | US | 2025-05-12 |
8207907585 | Doc | 33.7% | CN | US | 2025-05-12 |
Sand Ring Cap Grinding Head
A sand ring cap grinding head is a specialized abrasive tool used for deburring, grinding, and polishing various materials, particularly in confined spaces and for complex shapes.
Material:
These heads typically utilize abrasive grains bonded to a core. Common abrasive materials include:
- Aluminum Oxide: Versatile, cost-effective, suitable for general-purpose grinding and deburring of ferrous metals, carbon steel, and some non-ferrous materials.
- Silicon Carbide: Harder and more aggressive than aluminum oxide, effective on harder materials like glass, ceramics, stone, and non-ferrous metals. Also used for removing coatings.
- Ceramic: Provides a long lifespan and consistent cut, often used for high-precision applications and harder materials.
- Diamond: Used for extremely hard materials and applications requiring very high precision and durability.
The core material is often a steel shank with a rubber or resin bonding agent to hold the abrasive grains.
Purpose:
- Deburring: Removing sharp edges and burrs from machined parts, castings, and stamped components.
- Grinding: Shaping and smoothing surfaces, removing excess material.
- Polishing: Achieving a smooth, refined surface finish.
- Cleaning: Removing rust, scale, and other surface contaminants.
- Shaping: Used in mold making and similar applications to create precise shapes.
Function:
The abrasive grains, when rotated at high speed, remove material through a micro-chipping action. The “sand ring” design, usually consisting of multiple abrasive rings, provides a large surface area for efficient material removal and allows for work in hard-to-reach areas. The flexibility of the rings conforms to the workpiece shape, ensuring consistent contact and even grinding.
Usage Scenarios:
- Metal Fabrication: Deburring weld seams, removing excess material from cut edges, smoothing surfaces.
- Mold and Die Making: Shaping and polishing intricate mold cavities and die surfaces.
- Automotive Repair: Removing rust, cleaning surfaces, and preparing metal for painting.
- Aerospace: Precision deburring and finishing of aircraft components.
- Foundries: Removing gates, risers, and other imperfections from castings.
- Jewelry Making: Shaping and polishing precious metals.
- Stone and Glass Work: Smoothing and shaping edges, removing imperfections.
Common Types:
- Rubber Abrasive Heads: Feature abrasive grains embedded in a rubber matrix. Offer good flexibility and conformability, suitable for general-purpose applications.
- Resin Abrasive Heads: Utilize a resin bonding agent. Provide a more aggressive cut and longer lifespan than rubber heads.
- Diamond Abrasive Heads: Employ diamond grains for extreme hardness and durability. Used for specialized applications requiring high precision.
- Conical Heads: Shaped like a cone, ideal for reaching into tight spaces and corners.
- Cylindrical Heads: Feature a cylindrical shape, suitable for flat surfaces and larger areas.
- Flap Heads: Consist of abrasive flaps bonded to a core. Provide a smoother finish and are suitable for contour grinding.
- Mounted Points/Wheels: Smaller versions used with rotary tools for detailed work.
Based on the provided information, the following HS codes may be relevant to “sand ring cap grinding head”:
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6804224000: This HS code covers millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials. Specifically, it refers to Other millstones, grindstones, grinding wheels and the like, Of other agglomerated abrasives or of ceramics. The tax rate details are: Basic tariff: 0.0%, Additional tariff: 25.0%, Additional tariff after 2025.4.2: 30%. Total tariff: 55.0%. This could apply if the grinding head is made of agglomerated abrasives or ceramics.
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6804226000: This HS code also covers millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials. Specifically, it refers to Other millstones, grindstones, grinding wheels and the like, Of other agglomerated abrasives or of ceramics. The tax rate details are: Basic tariff: 0.0%, Additional tariff: 25.0%, Additional tariff after 2025.4.2: 30%. Total tariff: 55.0%. This is similar to 6804224000 and could apply if the grinding head is made of agglomerated abrasives or ceramics.
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8205595560: This HS code covers handtools (including glass cutters) not elsewhere specified or included; blow torches and similar self-contained torches; vises, clamps and the like, other than accessories for and parts of machine tools or water-jet cutting machines; anvils; portable forges; hand- or pedal-operated grinding wheels with frameworks; base metal parts thereof. Specifically, it refers to Other handtools (including glass cutters) and parts thereof, Other, Of iron or steel Other (including parts). The tax rate details are: Basic tariff: 5.3%, Additional tariff: 25.0%, Additional tariff after 2025.4.2: 30%. Total tariff: 60.3%. This could apply if the grinding head is considered a handtool made of iron or steel.
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8207907545: This HS code covers interchangeable tools for handtools, whether or not power operated, or for machine-tools (for example, for pressing, stamping, punching, tapping, threading, drilling, boring, broaching, milling, turning or screwdriving), including dies for drawing or extruding metal, and rock drilling or earth boring tools; base metal parts thereof. Specifically, it refers to Other interchangeable tools, and parts thereof, Other, Other, Not suitable for cutting metal, and parts thereof, Other Cutterheads with interchangeable tools. The tax rate details are: Basic tariff: 3.7%, Additional tariff: 0.0%, Additional tariff after 2025.4.2: 30%. Total tariff: 33.7%. This could apply if the grinding head is an interchangeable tool not suitable for cutting metal.
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8207907585: This HS code covers interchangeable tools for handtools, whether or not power operated, or for machine-tools (for example, for pressing, stamping, punching, tapping, threading, drilling, boring, broaching, milling, turning or screwdriving), including dies for drawing or extruding metal, and rock drilling or earth boring tools; base metal parts thereof. Specifically, it refers to Other interchangeable tools, and parts thereof, Other, Other, Other. The tax rate details are: Basic tariff: 3.7%, Additional tariff: 0.0%, Additional tariff after 2025.4.2: 30%. Total tariff: 33.7%. This could apply if the grinding head is an interchangeable tool.
It is important to determine the material composition and intended use of the "sand ring cap grinding head" to select the most appropriate HS code.