Find HS Code and trade information for grinding head

Grinding Head

A grinding head is a power tool attachment used to remove material or shape objects through abrasion. It typically consists of a rotating abrasive element, coupled to a power source, and is utilized across a broad range of applications in metalworking, woodworking, construction, and automotive repair.

Material

Grinding heads utilize a variety of abrasive materials, selected based on the target material and desired outcome:

• Aluminum Oxide: Common for general-purpose grinding and blending of mild steels, alloys, and wood. Relatively inexpensive.
• Silicon Carbide: Harder and more aggressive than aluminum oxide. Effective on harder materials like stone, glass, and non-ferrous metals.
• Cubic Boron Nitride (CBN): Extremely hard, used for grinding hardened steels, cast iron, and superalloys. More expensive, offering longer life and faster cutting speeds on difficult materials.
• Diamond: The hardest abrasive, employed for grinding extremely hard materials like ceramics, glass, and carbide. Highest cost, longest life, and finest finishes.

The abrasive material is typically bonded into various forms:

• Wheels: Most common form, available in straight, cup, and conical shapes.
• Points: Used for detail work, deburring, and reaching tight spaces.
• Flap Disks: Consist of overlapping abrasive flaps, offering a flexible grinding surface for blending and contouring.
• Mounted Stones: Small abrasive shapes bonded to a shank for precision grinding.

Purpose

The primary purpose of a grinding head is material removal through abrasion. Specific applications include:

• Deburring: Removing sharp edges from metal parts.
• Shaping: Creating desired contours and profiles.
• Smoothing: Refining surfaces and removing imperfections.
• Welding Preparation: Removing weld spatter and cleaning joints.
• Rust Removal: Eliminating corrosion from metal surfaces.
• Sharpening: Restoring cutting edges to tools.

Function

Grinding heads function by rotating an abrasive element at high speed against the target material. The abrasive grains remove small particles of material through impact and friction. The rate of material removal depends on factors such as:

• Abrasive Grit Size: Coarser grits remove material faster but leave a rougher finish. Finer grits provide a smoother finish but remove material more slowly.
• Wheel Speed (RPM): Higher speeds generally increase material removal rate, but can also generate more heat.
• Pressure Applied: Greater pressure increases material removal rate, but can also lead to wheel wear and potential damage.
• Angle of Attack: The angle at which the wheel contacts the material influences the cutting action and finish quality.

Usage Scenarios

Grinding heads are used in a wide variety of settings:

• Metalworking Shops: For machining, fabrication, and repair of metal parts.
• Automotive Repair: For removing rust, grinding welds, and shaping metal.
• Construction: For cutting and grinding concrete, stone, and tile.
• Woodworking: For shaping wood, smoothing surfaces, and removing imperfections.
• DIY Projects: For a range of home repair and improvement tasks.

Common Types

• Angle Grinder Wheels: Used with angle grinders for cutting, grinding, and polishing. Available in various diameters and abrasive materials.
• Bench Grinder Wheels: Mounted on bench grinders for sharpening tools and shaping metal. Typically larger in diameter than angle grinder wheels.
• Die Grinder Wheels: Smaller wheels used with die grinders for detail work and precision grinding.
• Flap Disks: Versatile for blending, contouring, and finishing.
• Diamond Grinding Wheels: Used for grinding extremely hard materials.
• Carbide Burrs: Used with rotary tools for shaping and deburring.

The declared goods are grinding heads, which are tools used for grinding, sharpening, polishing, or cutting. They can be made of natural stone, agglomerated natural or artificial abrasives, or ceramics, and are used in various applications such as metalworking, woodworking, and stone processing.

The following HS codes are relevant to grinding heads, based on the provided reference material:

• 6804224000: This HS code falls under Chapter 68, which covers articles of stone, plaster, cement, asbestos, mica or similar materials. Specifically, it 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. The subheading 224000 specifically refers to "Other millstones, grindstones, grinding wheels and the like: Of other agglomerated abrasives or of ceramics: Other: Abrasive wheels". This code applies to abrasive wheels made of other agglomerated abrasives or ceramics.
• 6804226000: This HS code also falls under Chapter 68, covering articles of stone, plaster, cement, asbestos, mica or similar materials. It specifically 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. The subheading 226000 refers to "Other millstones, grindstones, grinding wheels and the like: Of other agglomerated abrasives or of ceramics: Other: Other". This code applies to other grinding wheels made of other agglomerated abrasives or ceramics.
• 8205100000: This HS code falls under Chapter 82, covering handtools. Specifically, it 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: Drilling, threading or tapping tools, and parts thereof. This code may apply if the grinding head is part of a hand-operated grinding wheel with a framework.

Tax Rate Information:

• 6804224000: Basic tariff: 0.0%, Additional tariff: 25.0%, Tariff after April 2, 2025: 30.0%, Total tariff: 55.0%.
• 6804226000: Basic tariff: 0.0%, Additional tariff: 25.0%, Tariff after April 2, 2025: 30.0%, Total tariff: 55.0%.
• 8205100000: Basic tariff: 6.2%, Additional tariff: 25.0%, Tariff after April 2, 2025: 30.0%, Total tariff: 61.2%.