Hydraulic Press Return Spring
Extra-heavy helical compression spring from 11 mm wire for returning rams in H-frame hydraulic presses. Classified under HTS 7320.20.50.45 as helical spring of proper wire gauge. 50,000+ cycle fatigue rated.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts of hydraulic presses
Press-specific springs classify under machine tool parts in Chapter 84.
If tools for presses
Springs as integral die components may be tools rather than parts.
If wire <5.1mm cross-section
Smaller wire springs for lighter presses fall in different statistical note.
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Import Tips & Compliance
• Fatigue testing per ISO 16249 standards required for press applications
• Square/ground ends specification prevents end coil bind issues
• Shot peening process documentation improves perceived quality/duty treatment
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