Compact Hydraulic Cylinder for Injection Molding
Precision linear acting cylinder providing clamping force for plastic injection molding machines. Classified in HTS 8412.21.00 as a hydraulic power motor essential for maintaining mold closure during high-pressure injection cycles.
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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 when supplied as complete molding machine clamp unit
Parts of plastics molding machinery take the machinery classification per Chapter 84 rules.
If piston-only assemblies without full cylinder housing
Incomplete cylinder assemblies lacking outer housing classified as hydraulic engine parts.
If high-precision servo-controlled cylinders
Automatic control-integrated cylinders may fall under control instruments if primary function changes.
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Import Tips & Compliance
• Cleanliness certifications (ISO 4406) critical for plastic molding applications to prevent contamination
• Tie-rod vs welded construction specifications affect duty treatment and must be clearly documented
• Avoid misclassification as molding machine parts under 8477 by importing cylinders separately
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