Single Screw Extruder for Rubber Tires
A precision-engineered single screw component designed for extruders used in processing natural or synthetic rubber into tire treads and sidewalls. It falls under HTS 8477.20.00.05 as it is specifically for rubber thermosetting materials, facilitating uniform melting and shaping in extrusion lines. This part ensures high-volume production with consistent material flow.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used exclusively for thermoplastic plastics
Extruder screws for non-thermosetting plastics like PVC fall under the general parts provision, not the specific rubber/thermoset subheading.
If imported as a flywheel or pulley component
Certain grooved shafts functioning as transmission parts are classified in Chapter 84 as machinery flywheels, separate from extruder specifics.
If made primarily of stainless steel without specific extruder design
Basic steel fabricated articles not dedicated to extruders may shift to Chapter 73 for other steel articles.
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Import Tips & Compliance
• Verify the screw's material certification (e.g
• hardened steel) and compatibility with rubber thermosets to confirm classification under 8477.20.00.05
• Include detailed engineering specs and end-use declaration in import docs to avoid misclassification as general plastic parts
• Check for anti-dumping duties on machinery parts from certain origins and ensure proper marking as 'part of extruder'
Related Products under HTS 8477.20.00.05
Nitrided Single Screw for Thermoset Plastic Profiles
A nitrided steel single screw optimized for extruding thermosetting plastics like phenolic resins into profiles for electrical insulation. Classified under HTS 8477.20.00.05 due to its use in thermoset material processing equipment. The nitriding enhances wear resistance for high-temperature, abrasive thermoset extrusion.
High-Torque Single Screw for EPDM Rubber Seals
Engineered single screw for high-torque extruders processing EPDM rubber into weatherstripping and automotive seals. Falls under HTS 8477.20.00.05 for its role in thermosetting rubber extrusion machinery. Features deep channel geometry for shear-sensitive rubber compounds.
Barrier Single Screw for Melamine Extrusion
A barrier-type single screw for extruding melamine-formaldehyde thermoset resins into laminates and moldings. Classified in HTS 8477.20.00.05 for thermosetting plastics processing in dedicated extruders. The barrier design prevents resin degradation during high-heat extrusion.
Corrosion-Resistant Single Screw for Silicone Rubber Extrusion
A single screw with corrosion-resistant alloy coating for extruding liquid silicone rubber (LSR) into medical tubing and seals. It qualifies for HTS 8477.20.00.05 as it's engineered for thermosetting rubber processing in high-precision extruders. The design handles LSR's unique curing requirements during extrusion.