Raymond Mill Grinding Rollers
Rotating grinding rollers in Raymond pendulum mills crush and grind coal, limestone, or phosphate rock against a bullring. Hardfaced for mineral abrasion resistance. HTS 8474.90.0020 applies to these vertical grinding machine parts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If machine tool rollers
Rolling mills for metal classified in 8455, not mineral grinders.
If conveyor rollers for ore
Material handling rollers under 8431, not active grinding components.
If general pulleys
Flywheel-like rollers default to transmission parts in 8483.
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Import Tips & Compliance
• Include RPM and grind size capability data for technical classification
• Balance certificates needed for rotating parts to avoid vibration claims
Related Products under HTS 8474.90.00.20
Roll Crusher Tooth Segments
Segmented teeth for double roll crushers grip and crush coal, limestone, or other mineral ores in solid form for size reduction. Hardfaced for extended wear life. HTS 8474.90.0020 designates these as parts of grinding/crushing machines for mineral substances.
Grinding Mill Liner Plates
Rubber or steel liner plates for ball/rod mills protect the shell while grinding ores to fine powder in mineral processing plants. Wave or ribbed patterns enhance mineral cascading. Classified in HTS 8474.90.0020 for parts of grinding machines handling solid mineral substances.
Autogenous Grinding Mill Shell Lifters
Shell lifter bars in AG/SAG mills elevate ore charge for autogenous grinding of copper or gold ores using rocks as media. High-strength steel castings. Part of HTS 8474.90.0020 for large-scale mineral grinding machine parts.
Crusher Main Shaft Assemblies
Forged alloy main shafts with eccentric sleeves transmit gyratory motion in cone and gyratory crushers for ore crushing. Precision machined for bearing fits. HTS 8474.90.0020 covers these critical rotating parts of crushing machines.
Toggle Plate for Jaw Crushers
Toggle plates in jaw crushers convert pitman motion to crushing force while protecting against tramp iron in ore feeds. Manganese steel for impact absorption. Specific to HTS 8474.90.0020 as jaw crusher parts.
Pitman Assembly for Single Toggle Jaw Crusher
Pitman arms connect eccentric shaft to toggle in single toggle jaw crushers, providing the crushing stroke for stone and ore. Balanced counterweights reduce vibration. HTS 8474.90.0020 for these articulated crushing parts.