Find HS Code and trade information for 刀盘

刀盘

刀盘 (dāo pán) refers to a rotating cutting tool used in a variety of excavation and cutting applications, primarily in tunnel boring machines (TBMs) and other earthmoving equipment. It is a crucial component for efficiently removing rock and soil.

Material

• Cutting Tools: Typically made of hardened steel, tungsten carbide, or polycrystalline diamond compact (PDC). Tungsten carbide offers a balance of hardness and toughness, while PDC provides superior wear resistance, especially in abrasive rock formations.
• Disk Body: Usually constructed from high-strength steel to withstand substantial forces and impacts.
• Bearings: Utilize robust bearings to handle the rotational load and maintain smooth operation.

Purpose

The primary purpose of a knife disc is to break, crush, and chip away at the rock or soil face during excavation. They are designed to create a continuous cutting action, enabling the machine to advance through the material.

Function

Knife discs function through a combination of impact and abrasion. As the disc rotates against the rock face, the cutting tools create fractures and break down the material. The resulting debris is then removed by a conveying system, typically through augers or belts.

Usage Scenarios

• Tunnel Boring Machines (TBMs): The most common application. Knife discs are arranged in a circular pattern on the cutterhead of the TBM.
• Horizontal Directional Drilling (HDD): Used to cut through soil and rock for installing underground utilities.
• Road Milling Machines: Employed to remove asphalt and concrete surfaces.
• Trenching Machines: Utilized for cutting narrow trenches for pipelines and cables.
• Dredging: Some dredging applications utilize knife discs for cutting through sediment and debris.

Common Types

• Single-Edge Knife Discs: Feature cutting tools on one side, suitable for softer materials.
• Double-Edge Knife Discs: Equipped with cutting tools on both sides, providing greater cutting efficiency and versatility.
• Scraper Knife Discs: Designed to scrape and remove material, often used in conjunction with other cutting tools.
• Tungsten Carbide Knife Discs: Utilize tungsten carbide cutting tools for improved wear resistance.
• PDC Knife Discs: Employ polycrystalline diamond compact cutting tools for exceptional hardness and durability.
• Roller Cutter Discs: These are a distinct type of cutter often used alongside knife discs. They feature a rotating cone with multiple cutting teeth, offering a different cutting mechanism.
• Fixed Knife Discs: These are mounted rigidly to the cutterhead, providing a stable cutting edge.

Considerations

• Geological Conditions: The type of knife disc selected depends heavily on the hardness, abrasiveness, and fracture characteristics of the rock or soil being excavated.
• Wear Rate: Knife discs are subject to significant wear and require regular inspection and replacement.
• Spacing and Arrangement: The spacing and arrangement of knife discs on the cutterhead are critical for optimizing cutting performance and minimizing wear.
• Lubrication: Adequate lubrication is essential for reducing friction and extending the lifespan of knife discs.

刀盘的商品分类涉及多个HS编码，具体取决于其材料、用途和应用场景。以下是根据提供的参考资料，与“刀盘”相关的HS编码：

• 8208.30.00.60: 刀具和切割刀片，用于机器或机械设备及其贱金属零件；用于厨房电器或食品工业使用的机器及其零件的其他（包括零件）。基础关税为0.0%，加征关税为25.0%，2025.4.2后加征关税为30.0%，总税率为55.0%。此编码适用于作为机器零件的刀盘，特别是用于食品加工行业的刀盘。
• 8208.90.60: 刀具和切割刀片，用于机器或机械设备及其贱金属零件；其他：其他（包括零件）。基础关税为0.0%，加征关税为25.0%，2025.4.2后加征关税为30.0%，总税率为55.0%。如果刀盘不属于特定用途（如食品行业），则可能适用此编码。
• 8211.92.90.30: 刀具，带有切割刀片，带有或不带有锯齿（包括修枝刀），不属于第8208章的刀具，及其贱金属零件；其他：其他固定刀片的其他刀具：其他厨房和屠宰刀。基础关税为0.4¢ each + 6.1%，加征关税为7.5%，2025.4.2后加征关税为30.0%，总税率为0.4¢ each + 6.1%+37.5%。适用于厨房或屠宰行业使用的固定刀片刀盘。
• 8211.92.20.00: 刀具，带有切割刀片，带有或不带有锯齿（包括修枝刀），不属于第8208章的刀具，及其贱金属零件；其他：其他固定刀片的其他刀具：带有橡胶或塑料手柄：厨房和屠宰刀。基础关税为0.8¢ each + 4.6%，加征关税为7.5%，2025.4.2后加征关税为30.0%，总税率为0.8¢ each + 4.6%+37.5%。适用于带有橡胶或塑料手柄的厨房或屠宰行业使用的固定刀片刀盘。

请注意，具体选择哪个HS编码取决于刀盘的详细规格和用途。建议提供更详细的产品信息，以便更准确地进行分类。