Hammermill Breaker Plates
Hammermill breaker plates are perforated plates that regulate particle size during grinding of ores, limestone, or biomass minerals. They are impact-resistant and feature precise hole patterns to control output. As parts of mineral grinding machinery, they are classified under tariff item 8474.90.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the breaker plates are imported with a new hammermill as original equipment
Original parts presented with a complete machine are classified with that machine.
If the plates are wire products not identifiable as machine parts
Articles of iron or steel wire may fall under this heading when not machine parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify breaker plates as parts of hammermills under 8474.90.00; the CBSA may request the mill model and plate specifications
• Ensure the plates are described as impact-resistant and perforated for mineral grinding, not as general-purpose screens
• If the plates are made of special alloys, provide the material certificate to support the classification
Related Products under Tariff item 8474.90.00
Aggregate Washing Plant Pump Impellers
Abrasion-resistant impellers designed for slurry pumps used in aggregate washing plants. These parts are integral to the washing machinery that cleans earth, stone, or ores, ensuring efficient handling of sand, gravel, and water mixtures.
Autogenous Grinding Mill Shell Lifters
Shell lifter bars are high-strength steel castings installed inside autogenous (AG) and semi-autogenous (SAG) mills. They elevate the ore charge so that rocks cascade and grind copper or gold ores without additional media. As replacement parts for mineral grinding machinery, they are classified under tariff item 8474.90.00.
Ball Mill Liner Segments
High-chrome cast iron liner segments that line the interior of ball mills used for grinding mineral ores into fine powder. These sacrificial parts protect the mill shell and enhance grinding efficiency in mineral processing.
Classifying Cyclone Apex Insert
A tungsten carbide apex insert designed for classifying cyclones that separate fine mineral particles by size and weight. This wear part offers extreme abrasion resistance, making it essential for the efficient operation of mineral separating and washing machinery. It is classified under this tariff item as a part of machines for sorting, screening, separating or washing mineral substances.
Cone Crusher Mantle Bowls
Manganese steel bowl liners and mantles for cone crushers that provide secondary or tertiary crushing of mineral ores through compression. These precision-machined parts form the working surfaces of the crushing chamber.
Cone Crusher Mantle Liners
Cone crusher mantle liners are contoured wear parts made from chrome-moly alloys that protect the inner cone during ore and stone crushing. They provide the crushing surface in secondary and tertiary stages of mineral processing. As replacement parts for cone crushers, they are classified under tariff item 8474.90.00.