High-Precision Air-Bearing Dividing Head
Air-bearing dividing head for 5-axis machining centers (HTS 8464-8465), offering sub-arcsecond accuracy for aerospace and semiconductor applications. Classified in 8466.30.10.00 for its dividing head function with machine tools.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly electronic servo-driven
Advanced control systems may dominate over mechanical dividing classification.
If integral to semiconductor polishers
Per Chapter 84 notes, wafer grinder/polisher components use specific provisions.
If with dominant optical encoder
Precision measuring instruments for machining feedback shift to Chapter 90.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide NIST-traceable accuracy certificates for air-bearing friction specs
• Declare cleanroom compatibility if for semiconductor end-use
• File EEI for high-value precision items regardless of simplified procedure eligibility
Related Products under HTS 8466.30.10.00
CNC Dividing Head for Milling Machines
A precision dividing head designed for use with CNC milling machines in headings 8459-8461, enabling accurate angular indexing and rotation of workpieces for machining complex geometries like gears and splines. It falls under HTS 8466.30.10.00 as a dividing head, a special attachment solely for machine tools of 8456-8465.
Manual Indexing Dividing Head BS-0 Model
The BS-0 manual dividing head is a compact accessory for vertical milling machines (HTS 8459), featuring 3-jaw chuck and worm gear for 360:1 ratio indexing in 2.5-degree increments. Classified under 8466.30.10.00 as a dividing head for machine tools.
Semi-Automatic Dividing Head with Pneumatic Clamp
This semi-automatic dividing head for horizontal boring mills (HTS 8458) includes pneumatic clamping and servo-driven indexing for high-volume production. It qualifies under HTS 8466.30.10.00 specifically for dividing heads used principally with 8456-8465 machines.
Universal Dividing Head DH-250 for Gear Cutting
The DH-250 universal dividing head supports gear hobbing and shaping machines (8456-8458), with rapid traverse and multiple spindle configurations. Falls under 8466.30.10.00 as a dedicated dividing head accessory.