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HSChapter 84
U.S. imports of grinding & polishing machines for stone, ceramics & glass (HS 846420) totaled $5.9M in June 2026, traded with 25 countries.
Importers of Grinding & Polishing Machines for Stone, Ceramics & Glass paid $894K in duties in June 2026 — an effective duty rate of 15% on $5.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Grinding & Polishing Machines for Stone, Ceramics & Glass imports of $5.9M in June 2026 ran 15% above the year-to-date monthly average of $5.2M.
Italian and German manufacturers dominate US imports of these precision machines, which split at the 10-digit level into glass-working grinding/polishing equipment (8464200110) and machines for mineral materials such as stone, ceramics, concrete, and asbestos-cement (8464200120). The glass-working lines serve architectural, automotive, and optical fabrication sectors, while the mineral-materials lines are central to countertop, tile, and precast concrete production. Imports from China are subject to Section 301 tariffs, a key cost consideration when sourcing the mineral-materials variant from that origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The HTS splits the heading at the 10-digit level: 8464200110 covers grinding or polishing machines specifically for cold working glass, while 8464200120 covers equivalent machines for stone, ceramics, concrete, and like mineral materials. The intended workpiece material — not the machine's mechanical design — drives the classification, so importers should document the machine's rated application and any manufacturer specifications that confirm the substrate.
Yes. Grinding and polishing machines for stone, ceramics, and glass originating in China are generally subject to Section 301 tariffs. Importers should verify the applicable list and any granted exclusions with a licensed customs broker before entry, as coverage and exclusion status can change.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| ITALY | $2.4M | $16K | -$2.4M |
| CZECH REPUBLIC | -- | $2.2M | +$2.2M |
| GERMANY | $1.4M | $10K | -$1.4M |
| CHINA | $772K | $94K | -$678K |
| CANADA | $58K | $680K | +$623K |
Monthly import values over time
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8464200120 | GRINDING OR POLISHING MACHINES FOR MINERAL MATL | $3.7M | 16.58% | 97.99% | $607K |
| 8464200110 | GLASS-WORKING GRINDING OR POLISHING MACHINES | $2.3M | 12.56% | 100.00% | $287K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8464200110 | GLASS-WORKING GRINDING OR POLISHING MACHINES | $2.3M |
| 8464200120 | GRINDING OR POLISHING MACHINES FOR MINERAL MATL | $1.7M |
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| Port | Imports | Exports | Balance |
|---|---|---|---|
| JFK INTERNATIONAL AIRPORT, NY | $27K | $2.2M | +$2.2M |
| NORFOLK-NEWPORT NEWS, VA | $1.0M | -- | -$1.0M |
| SAVANNAH, GA | $989K | -- | -$989K |