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U.S. imports of industrial machinery & equipment for temperature-change material treatment (nesoi) (HS 841989) totaled $281.9M in July 2026, traded with 67 countries.
Importers of Industrial Machinery & Equipment for Temperature-Change Material Treatment (NESOI) paid $27.8M in duties in July 2026 — an effective duty rate of 14% on $205.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataSpanning a wide range of process industries, this heading covers industrial and laboratory equipment that treats materials through heating, cooling, or other temperature change — excluding domestic appliances and the food/hot-drink machinery of heading 841981. Taiwan and Mexico are the leading US import sources, with China, Canada, and Germany also significant. The US schedule draws important distinctions by end-use: dedicated lines exist for equipment cooling food and beverages (8419899520), general cooling equipment (8419899540), food and beverage temperature treatment (8419899560), and rubber and plastics processing (8419899580), with a residual NESOI line (8419899585) for other applications. Chinese-origin goods may carry Section 301 tariff exposure, and importers should verify classification carefully given the heading's broad scope.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.7K shipments/mo
Line 8419899520 is specifically for equipment designed to cool food and beverages, while 8419899560 covers broader temperature-change treatment of food and beverages not limited to cooling — such as pasteurization or heat treatment systems. The distinction turns on whether the equipment's primary designed function is cooling versus a broader thermal process, and misclassification between these lines is a common audit finding.
Taiwan has a well-developed industrial machinery manufacturing base, particularly for process equipment used in electronics, food processing, and plastics industries — all of which rely heavily on temperature-control machinery. Its competitive pricing and established export infrastructure make it a primary source for US importers of this equipment category.
HSChapter 84
Subheading 1 of 14 in heading 8419
Subheading 841989 · $281.9M of $1.0B
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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 |
|---|---|---|---|---|---|
| 8419899540 | Ind Mach, Plant Equip Design for Cooling, NESOI | $148.3M | 9.77% | 70.52% | $14.5M |
| 8419899590 | Ind Mac,Plant,Equip,Treat of Materl,Temp Chg,NESOI | $126.5M | 9.91% | 74.93% | $12.5M |
| 8419899570 | Ind Mac,Plant, Equip,Treat Rub, Plast,Temp Chg,Nes | $3.1M | 6.67% | 85.01% | $210K |
| 8419899550 | Ind Mac,Plant,Equip,Treat Food,Bev,Temp Chg,NESOI | $2.8M | 13.65% | 96.03% | $388K |
| 8419899520 | Ind Mach, Plant or Equip Des for Cool Food,Beverag | $495K | 14.65% | 69.76% | $72K |
| 8419891000 | Ind Mac Plt,Equip,Make Pulp,Paper,Paperboard,NESOI | $427K | 14.88% | 64.13% | $64K |
| 8419899510 | Heatng Mantles,Drum Htrs,Heating Blts Heatng Cont | $85K | 29.39% | 100.00% | $25K |
| 8419896000 | Ind Mac,Plant,Equip,Treat of Materl,Temp Chg,Other | $67K | 11.28% | 100.00% | $8K |
| 8419899560 | Ind Mac,Plant,Equip,Treat Food,Bev,Temp Chg,NESOI | $0 | -- | -- | -- |
| 8419899580 | Ind Mac,Plant, Equip,Treat Rub, Plast,Temp Chg,Nes | $0 | -- | -- | -- |
| 8419899585 | Ind Mac,Plant,Equip,Treat of Materl,Temp Chg,NESOI | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$281.9MYoY · Pro
Exports
$134.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Mexico and Taiwan together supply 44% of it.
customs district
destination
entry
rate provision · imports
26.5% enters free of duty; the effective duty rate is 9.86%.