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HSChapter 84
U.S. imports of pneumatic power engines and motors, linear acting (cylinders) (HS 841231) totaled $29.2M in April 2026, traded with 47 countries.
Importers of Pneumatic Power Engines and Motors, Linear Acting (Cylinders) paid $2.1M in duties in April 2026 — an effective duty rate of 12% on $18.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPneumatic linear actuators use compressed air to generate straight-line force and are ubiquitous in factory automation, packaging machinery, and process control systems. The US schedule divides this heading between tie-rod pneumatic cylinders (8412310040) and all other linear-acting pneumatic motors excluding tie-rod construction (8412310080) — a narrower split than the hydraulic cylinder heading, reflecting the more standardized design landscape in pneumatics. Mexico leads US imports, followed by Germany and Japan, with China also a notable source. Importers sourcing from China should be aware that pneumatic components may be subject to Section 301 tariffs depending on the specific product and applicable exclusions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Pneumatic linear actuators classified under 841231 lines sourced from China may be subject to Section 301 tariffs. The applicability depends on the specific 10-digit HTS line and whether any product-specific exclusions have been granted or reinstated by USTR. Importers should check the current USTR exclusion list and CBP's Section 301 guidance at the time of entry, as exclusion status changes periodically.
Tie-rod pneumatic cylinders (8412310040) use external threaded rods running the length of the cylinder to clamp the end caps, a construction common in standard industrial automation. Non-tie-rod cylinders (8412310080) include welded, profile-barrel, and compact designs. The construction method is the controlling factor, and importers should confirm the cylinder body type from manufacturer specifications or product drawings to select the correct line.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8412310080 | LINEAR ACTING PNEUMATIC MTRS (CYLINDRS),EX TIE-ROD | $25.2M | 11.66% | $1.9M |
| 8412310040 | LINEAR ACTING PNEUMATIC MOTORS (CYLNDRS), TIE-ROD | $3.9M | 12.59% | $253K |
LINEAR ACTING PNEUMATIC MTRS (CYLINDRS),EX TIE-ROD
LINEAR ACTING PNEUMATIC MOTORS (CYLNDRS), TIE-ROD
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8412310080 | LINEAR ACTING PNEUMATIC MTRS (CYLINDRS),EX TIE-ROD | $18.6M |
| 8412310040 | LINEAR ACTING PNEUMATIC MOTORS (CYLNDRS), TIE-ROD | $2.7M |
LINEAR ACTING PNEUMATIC MTRS (CYLINDRS),EX TIE-ROD
133.5K no
LINEAR ACTING PNEUMATIC MOTORS (CYLNDRS), TIE-ROD
1.5K no
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
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $8.0M | $2.5M | -$5.5M |
| California | $779K | $4.8M | +$4.0M |
| Michigan | $3.3M | $1.1M | -$2.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $3.2M | $2.8M | -$392K |
| DEL RIO, TX | $4.0M | -- | -$4.0M |
| DETROIT, MI | $2.8M | $1.2M | -$1.6M |