Four-Roll Inverted L-Type Calender for Rubber
A four-roll calender in inverted L configuration for producing wide rubber sheets and frictioning textile fabrics with rubber compounds in conveyor belt manufacturing. Classified under HTS 8420.10.9040 for rubber calendering machines, featuring precise roll alignment for uniform thickness and adhesion. It processes soft rubber mixes through multiple roll nips.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily for coating textiles with rubber as a secondary function
Machines for continuously coating textiles with rubber may classify under Chapter 84 heading 8444 for textile machinery.
If for plastics calendering with different roll setups
Plastic-specific calenders often fall under 8477.59 for other plastics extrusion machinery if not purely rolling.
If specified for plastics rather than rubber in documentation
The subheading distinguishes rubber vs plastics calenders within the same rolling machine category.
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Import Tips & Compliance
• Include engineering drawings showing roll configuration (inverted L) and rubber-specific features like banking pins for accurate duty assessment
• Declare voltage requirements and hydraulic system details for potential electrical safety certifications during import
Related Products under HTS 8420.10.90.40
Two-Roll Rubber Calendering Machine
This machine uses two heated rolls to calender uncured rubber compounds into uniform sheets of specified thickness for tire manufacturing and rubber product production. It falls under HTS 8420.10.9040 as a calendering machine specifically designed for rubber processing, distinct from metal or glass rolling equipment. The rolls apply pressure and heat to consolidate and smooth the rubber material.
Precision Plastic Rolling Calender for Medical Films
High-precision calender with temperature-controlled rolls for rolling medical-grade plastic films used in packaging and IV bags. Under HTS 8420.10.9040 as plastics rolling machine, it achieves micron-level thickness control for sterile applications. Cleanroom-compatible design.
Tire Cord Frictioning Calender
Calender machine that applies thin rubber friction coat to tire cord fabrics for improved adhesion in tire carcasses. Classified HTS 8420.10.9040 for rubber calendering, using low-friction rolls for precise coating application. Critical for radial tire construction.
Laboratory Mini Calender for Plastics Testing
Benchtop mini-calender for R&D testing of plastic compounds, producing small sample sheets for quality control. HTS 8420.10.9040 as small-scale plastics rolling machine, with variable speed and temperature for experimental runs. Used in polymer development labs.
Silicone Rubber Calendering Machine Model SRC-800
Specialized calender for high-temperature silicone rubber sheeting used in gaskets and seals, with chrome-plated rolls resistant to silicone sticking. HTS 8420.10.9040 applies as a rolling machine for rubber (including silicone rubber), providing precise gap control for thin films. It handles viscous silicone compounds effectively.
PVC Plastic Calender Line for Film Production
Multi-roll calender line for calendering PVC plastisol into thin films for flooring and wall coverings, including cooling and embossing units. Falls under HTS 8420.10.9040 as a rolling machine for plastics, where heated rolls fuse and calendar the material into continuous sheets. Essential for flexible PVC film manufacturing.