Rubber Extruder Screw Barrel Assembly
This precision-engineered screw and barrel assembly is a core part of rubber extruders used in tire manufacturing and hose production. It falls under HTS 8477.90.86.20 as it is specifically designed for extruders that process unvulcanized rubber into continuous profiles. The assembly facilitates melting, mixing, and forcing rubber through a die under high pressure.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in plastic extruders rather than rubber
Parts for plastics-processing extruders fall under separate statistical suffixes in 8477.90.
If classified primarily as a heating element or jacket
Machinery parts with dominant heat-transfer function may shift to Chapter 84 nuclear reactors/boilers.
If made predominantly of stainless steel without specific extruder design
Plain steel articles not specialized for plastics/rubber machinery classify as other steel fabrications.
Not sure which classification is right?
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Import Tips & Compliance
• Verify material compatibility certification (e.g
• for natural vs synthetic rubber) to ensure classification as extruder parts
• Include detailed engineering drawings and end-use statements to avoid misclassification as general machinery parts
Related Products under HTS 8477.90.86.20
Cable Insulation Extruder Melt Pump
Precision gear melt pump for wire/cable insulation extruders, delivering consistent polymer flow. Under HTS 8477.90.86.20 as specialized 'extruder part' for uniform coating thickness. High-pressure tolerance for LDPE compounds.
Corrugated Pipe Extruder Forming Box
Mold block forming box for HDPE corrugated pipe extruders, creating annular profile in molten plastic. HTS 8477.90.86.20 for specialized 'extruder parts' in drainage pipe production. Vacuum-assisted sizing.
Profile Extruder Calibration Table
Vacuum calibration table for plastic window profile extruders, maintaining shape during cooling. HTS 8477.90.86.20 classifies as 'extruder part' for downstream sizing. Perforated stainless deck.
Wire Coating Extruder Crosshead Die
Crosshead die assembly for wire/cable coating extruders, centering conductor in polymer jacket. Under HTS 8477.90.86.20 as precision 'part of extruders' for insulation thickness control. Interchangeable tips for gauge changes.
Plastic Profile Extruder Die Head
A customizable die head component for plastic extruders producing window profiles, pipes, and tubing from PVC or polyethylene. Classified under HTS 8477.90.86.20 as an integral part 'of extruders' for shaping molten plastic into precise cross-sections. It ensures uniform flow and profile accuracy during extrusion.
Tire Tread Rubber Extruder Feed Hopper
Heavy-duty feed hopper for rubber extruders in tire tread production, designed to handle high-viscosity compounds. HTS 8477.90.86.20 applies as a specialized part 'of extruders' for uniform material feeding into the screw. Corrosion-resistant lining prevents contamination.