Hydraulic Cylinder for Excavator Boom
A double-acting hydraulic cylinder designed to extend and retract the boom arm on heavy construction excavators. It falls under HTS 8412.21.00 as a linear acting hydraulic power engine converting fluid pressure into linear mechanical motion for heavy machinery applications.
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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 imported as replacement part without specific machinery designation
Hydraulic cylinders classified as parts of engines/motors rather than complete linear acting units fall here.
If when imported specifically as parts of excavators or bulldozers
End-use classification prevails when cylinders are dedicated components of specific earth-moving machinery.
If for semiconductor wafer grinding equipment
Precision cylinders for semiconductor manufacturing machines are classified with those machines per statistical notes.
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Import Tips & Compliance
• Verify cylinder pressure ratings and certifications like ISO 6020/6022 standards for construction equipment compatibility
• Include detailed technical specs and end-use declarations to avoid misclassification as machinery parts under 8431
• Check for country-of-origin rules as many hydraulic cylinders originate from China, Japan, or Germany
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