Corrosion-Resistant Screw for Fluoropolymer Processing
Specially coated barrel screw resistant to corrosive fluoropolymers like PTFE and FEP in extrusion lines. For plastics chemical-resistant processing machinery, under HTS 8477.90.45.01. Coating withstands aggressive melt chemistry.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for semiconductor plastics molding
Specialized cleanroom versions for semiconductor packaging fall under statistical provisions.
If ceramic-coated version for extreme abrasion
High-ceramic content shifts to Chapter 69 ceramic articles.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide coating specification sheets (e.g
• PVD nickel) for material verification
• Declare chemical resistance ratings for fluoropolymers
Related Products under HTS 8477.90.45.01
Chrome-Plated Single Screw for Injection Molding Barrel
Chrome-plated single barrel screw optimized for injection molding machines processing ABS and nylon resins. It is a key part for plastics manufacturing machinery, fitting HTS 8477.90.45.01. The plating provides corrosion resistance in high-pressure environments.
Variable Pitch Progressive Screw for Profile Extrusion
Variable pitch progressive cavity barrel screw for PVC window profile extrusion lines. Part of plastics profile shaping machinery, HTS 8477.90.45.01. Progressive design ensures consistent output for complex profiles.
Three-Zone General Purpose Barrel Screw
Standard three-zone (feed, compression, metering) barrel screw for general-purpose plastics extruders processing LDPE and PS. Fits HTS 8477.90.45.01 as universal plastics machinery part. Cost-effective for multi-resin operations.
Nitrided 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. It falls under HTS 8477.90.45.01 as a specialized part for machinery working plastics or manufacturing plastic products. The nitriding enhances durability against abrasive materials.
Hardened 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. Classified under HTS 8477.90.45.01 as a part of plastics processing machinery. Its modular design allows for high-torque plasticizing.
High-Temperature Bimetallic Screw for PET Extrusion
Bimetallic barrel screw engineered for high-temperature extrusion of PET for bottle preforms, with enhanced wear resistance for abrasive polyester melts. Falls under HTS 8477.90.45.01 as a part for plastics profile extrusion machinery. Features optimized flight geometry for shear-sensitive materials.