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.
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 lifters are sold together with a new crushing or grinding machine as an original part
Parts presented with a complete machine are classified with that machine if they are included in the machine's scope.
If the lifters are simply cast iron or steel articles not identifiable as machine parts
Grinding balls and similar cast articles of iron or steel fall under this heading when not specifically 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
• Ensure the lifters are declared as parts of mineral grinding machinery under 8474.90.00; the CBSA may request a detailed description of the mill type they fit
• Verify the steel composition and heat treatment certificates to support classification
• If the lifters are imported with the mill itself, confirm whether they should be classified separately or as part of the complete machine
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.
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.
Crusher Main Shaft Assemblies
Crusher main shaft assemblies consist of forged alloy shafts with eccentric sleeves that transmit gyratory motion in cone and gyratory crushers. They are precision machined for bearing fits and are critical rotating parts in ore crushing operations. As parts of mineral crushing machinery, they are classified under tariff item 8474.90.00.