Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled

HS v2017 Code: 846023

About machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled

hs code 846023 covers cylindrical grinding machines, a critical component of modern manufacturing processes. These numerically controlled machine tools play a vital role in the production of high-precision parts and components across a wide range of industries, from automotive and aerospace to medical equipment and electronics. The ability to accurately grind cylindrical surfaces is essential for ensuring the proper fit, function, and performance of many engineered products, making this industry a key contributor to the broader global economy.

Production process

Cylindrical grinding machines utilize a rotating abrasive wheel to remove material from the surface of a workpiece, typically a cylindrical part. The workpiece is mounted on a spindle and rotated, while the grinding wheel is fed across the surface, removing material in a controlled and precise manner. Numerically controlled models utilize advanced computer systems to automate the grinding process, allowing for tighter tolerances, increased productivity, and reduced operator error.

Production inputs

The primary inputs for the cylindrical grinding machine industry include the grinding wheels themselves, which are composed of abrasive materials such as aluminum oxide or silicon carbide. Additionally, these machines require high-quality bearings, motors, and other mechanical components to ensure smooth and accurate operation. The workpieces being ground may be made from a variety of materials, including metals, ceramics, and composites, depending on the specific application.

Production outputs

The primary output of the cylindrical grinding machine industry is, of course, the grinding machines themselves, which are then utilized by a wide range of manufacturing sectors. The parts and components produced using these machines may be found in 870323 Motor vehicles for the transport of persons, with spark-ignition engine of a cylinder capacity exceeding 1,500 cc but not exceeding 3,000 cc, 841191 Parts suitable for use solely or principally with the engines of heading 8411, and 901890 Instruments and appliances used in medical, surgical or veterinary sciences, n.e.s., among others.

Revisions to 846023

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 846023. The most recent 1 version of this code (846023) is in the HS v2022 system:

This page shows a legacy version of code 846023 ( HS v2017).

Older versions

Family tree for machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled

    graph LR
    A["<a href='/classifications/hs/v2017/84'>84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/8460'>8460: Machine-tools; for deburring, sharpening, grinding, honing, lapping, polishing or otherwise finishing metal, sintered metal carbides or cermets by means of grinding stones, abrasives or polishing products</a>"]
B --> C["<a href='/classifications/hs/v2017/846023'>846023: Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled</a>"]

    B --> D["<a href='/classifications/hs/v2017/846012'>846012: Machine-tools; flat-surface grinding machines, numerically controlled</a>"]
B --> E["<a href='/classifications/hs/v2017/846019'>846019: Machine-tools; flat-surface grinding machines, other than numerically controlled</a>"]
B --> F["<a href='/classifications/hs/v2017/846022'>846022: Machine-tools; grinding machines (excluding flat-surface), centreless, numerically controlled</a>"]
B --> G["<a href='/classifications/hs/v2017/846024'>846024: Machine-tools; grinding machines (excluding flat-surface, cylindrical and centreless), numerically controlled</a>"]
B --> H["<a href='/classifications/hs/v2017/846029'>846029: Machine-tools; grinding machines (excluding flat-surface), other than numerically controlled</a>"]
B --> I["<a href='/classifications/hs/v2017/846031'>846031: Machine-tools; sharpening (tool or cutter grinding) machines, numerically controlled</a>"]
B --> J["<a href='/classifications/hs/v2017/846039'>846039: Machine-tools; sharpening (tool or cutter grinding) machines, other than numerically controlled</a>"]
B --> K["<a href='/classifications/hs/v2017/846040'>846040: Machine-tools; for honing or lapping</a>"]
B --> L["<a href='/classifications/hs/v2017/846090'>846090: Machine-tools; for deburring, grinding, polishing or otherwise finishing metal, sintered metal carbides or cermets by means of grinding stones, abrasives or polishing products, n.e.c. in heading no. 8460</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight