Caterpillar D9T Dozer-Mounted Rock Breaker

A hydraulic rock breaker attachment designed for mounting on Caterpillar D9T bulldozers, used in mining and construction for breaking large rock formations and boulders. It falls under HTS 8430.31.0040 as a self-propelled rock breaking machine due to its integration with a self-propelled dozer base for mobility in harsh terrains.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8430.49.80Same rate: 35%

If not self-propelled

Non-self-propelled rock breakers, like stationary or tractor-mounted without independent propulsion, classify under other coal/rock cutters.

8474.10.00Same rate: 35%

If for mineral crushing in processing plants

If primarily used for size reduction of mined ores in stationary crushing circuits rather than on-site breaking, it falls under crushing/grinding machines.

8431.49.90Same rate: 35%

If imported as separate hydraulic attachment only

Hydraulic breaker attachments without the self-propelled base are classified as parts of machinery in 8431, not complete machines.

Not sure which classification is right?

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Import Tips & Compliance

Verify self-propelled capability with engine specs and mobility documentation to confirm classification under 8430.31.0040

Include OEM certificates for hydraulic systems and attachments to avoid misclassification as parts under 8431

Check for EPA emissions compliance if the integrated dozer engine exceeds certain horsepower thresholds