For extruders
Machinery for working rubber or plastics or for the manufacture of products from these materials, not specified or included elsewhere in this Chapter. > Parts > Barrel screws > For extruders
Duty Rate (from China)
Products classified under Tariff item 8477.90.20.20
Chrome-Plated Single Screw for Injection Molding Barrel
A chrome-plated single screw designed for injection molding machines processing ABS and nylon resins. It is a key component of the plasticizing unit, where it rotates within the barrel to melt, mix, and convey the polymer. This screw is a part of machinery for working plastics, falling under the barrel screw tariff item.
8477.90.20Corrosion-Resistant Screw for Fluoropolymer Processing
A specially coated barrel screw resistant to corrosive fluoropolymers like PTFE and FEP, used in extrusion lines for chemical-resistant plastics processing. The coating prevents degradation from aggressive melts, ensuring long service life. This screw is a part of machinery for working plastics, classified under the barrel screw tariff item.
8477.90.20Hardened Alloy Steel Barrel Screw for Twin-Screw Extruder
A precision-ground, hardened alloy steel barrel screw for counter-rotating twin-screw extruders used in compounding thermoplastics like polypropylene. The screw's design ensures efficient mixing and conveying of the polymer melt. This screw is a part of machinery for working plastics, falling under the barrel screw tariff item.
8477.90.20High-Compression Barrier Screw for HDPE Blow Molding
A high-compression barrier screw with a Maddock mixer for HDPE blow molding parison extrusion. The barrier design prevents resin leakage and improves melt homogeneity, ensuring consistent parison quality. This screw is a part of machinery for working plastics, classified under the barrel screw tariff item.
8477.90.20High-Temperature Bimetallic Screw for PET Extrusion
A bimetallic barrel screw engineered for high-temperature extrusion of PET for bottle preforms, with enhanced wear resistance for abrasive polyester melts. The bimetallic construction provides durability in demanding applications. This screw is a part of machinery for working plastics, falling under the barrel screw tariff item.
8477.90.20Low-Shear Mixing Screw for Medical Tubing Extrusion
A low-shear barrel screw with distributive mixing sections for extruding medical-grade PVC tubing. The design ensures uniform melt without degrading heat-sensitive materials. This screw is a part of machinery for working plastics, classified under the barrel screw tariff item.
8477.90.20Modular Segmented Barrel Screw for Compounding Lines
A modular segmented barrel screw for twin-screw compounding extruders used in masterbatch production from polyethylene and additives. The modular design allows reconfiguration for different processing requirements. This screw is a part of machinery for working plastics, falling under the barrel screw tariff item.
8477.90.20Nitrided Bimetallic Barrel Screw
A high-wear-resistant barrel screw with a bimetallic liner and nitrided base material, designed for single-screw extruders processing PVC and other plastics. The bimetallic liner provides excellent wear resistance, extending the screw's service life. This screw is a part of machinery for working plastics, classified under the barrel screw tariff item.
8477.90.20Three-Zone General Purpose Barrel Screw
A standard three-zone (feed, compression, metering) barrel screw for general-purpose plastics extruders processing LDPE and PS. This cost-effective screw is suitable for multi-resin operations, providing reliable performance across various applications. This screw is a part of machinery for working plastics, falling under the barrel screw tariff item.