Product classification
HS code for Dielectric heater: 8514.40
Heating equipment, for the heat treatment of materials by induction or dielectric loss, industrial or laboratory, other than furnaces and ovens.
Classification of dielectric heater under HS 8514.40
HS code 8514.40 is designated for industrial or laboratory heating equipment that utilizes induction or dielectric loss but does not constitute a furnace or oven. This classification applies to specialized equipment used for the heat treatment of materials, such as plastic welding machines or wood drying apparatuses that rely on dielectric heating. The distinction lies in the physical configuration; while furnaces (8514.20) enclose the material in a chamber, heaters under 8514.40 are often open-frame or integrated into a production line for localized heating. This equipment uses high-frequency electromagnetic waves to generate heat directly within the material. The classification is guided by Note 2 to Chapter 85 and the specific wording of heading 8514. This code is essential for identifying machinery used in the textile, woodworking, and plastics industries where volumetric heating is required without the use of a traditional oven structure. The equipment must be for industrial or laboratory use; consumer-grade heaters are classified elsewhere. The technology involves applying a high-frequency voltage across a non-conductive material, causing molecular friction that generates heat. This method is preferred for its speed and ability to heat materials from the inside out, which is critical in processes like edge-gluing or seam-welding where surface heating would be insufficient or damaging.
- Covers
- Radio-frequency (RF) heaters
- Dielectric plastic welders
- Induction heaters for localized metal treatment
- High-frequency edge gluers for woodworking
- Dielectric pre-heaters for molding
- Also under 8514.40
- Ambrell EASYHEAT Induction Heating Systems
- Radyne Induction Hardening Systems
- GH Induction Atmospheres
- Pillar Induction Melting Systems
Codes often confused with 8514.40
Common mistake. This code is often confused with 8514.20. The primary difference is the "furnace or oven" designation; 8514.40 is for "other" equipment that does not have an enclosed heating space. It is also sometimes misclassified under 8419.89, which is a general category for machinery involving a change of temperature. However, because 8514 specifically mentions dielectric loss heating, it is more specific and thus preferred under GRI 3(a). Another error involves 8515.80 for welding machines, but if the heat is generated by dielectric loss, 8514.40 is the more accurate classification.
Top exporters and importers of HS 851440 (the code used for dielectric heater), 2025
In 2025, the largest exporter of HS 851440 (the code used for dielectric heater) in UN Comtrade data was the United States, with 27% of world exports; the largest importer in UN Comtrade data was China, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 851440, not only dielectric heater.
Top exporters 2025 · share of world exports
- 1 United States $220M 27% of world exports
- 2 Germany $97M 12% of world exports
- 3 France $80M 10.0% of world exports
World total: $804M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $82M 12% of world imports
- 2 United States $76M 11% of world imports
- 3 Taiwan* ~$43M 6.1% of world imports · partner records ↗
World total: $704M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for dielectric heater
Brazil classifies dielectric heater under NCM 8514.40.00: HS 8514.40 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about dielectric heater
What is the HS code for Dielectric heater?
The HS code for Dielectric heater is 851440 (Heating equipment; for the heat treatment of materials by induction or dielectric loss, industrial or laboratory, other than furnaces and ovens). The HS code for industrial dielectric heating equipment (other than furnaces) is 8514.40.
How do I classify Dielectric heater for customs?
Dielectric heater is classified under HS code 851440 — Heating equipment; for the heat treatment of materials by induction or dielectric loss, industrial or laboratory, other than furnaces and ovens. This is a 6-digit subheading level code.
Is a plastic welder classified as a dielectric heater?
Yes, if the plastic welder uses high-frequency dielectric loss to generate heat for the bond, it is classified under 8514.40.
Which countries are the top exporters of dielectric heater (HS 851440)?
In 2025, the top exporters of HS 851440 (the code used for dielectric heater) in UN Comtrade data were the United States ($220M, 27% of world exports), Germany ($97M) and France ($80M). World exports came to about $804M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of dielectric heater (HS 851440)?
In 2025, the top importers of HS 851440 (the code used for dielectric heater) in UN Comtrade data were China ($82M, 12% of world imports), the United States ($76M) and Taiwan (about $43M). World imports came to about $704M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Dielectric heater the same in all countries?
The base HS code 851440 for Dielectric heater is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for dielectric heater in Brazil?
In Brazil, dielectric heater (HS 851440) is classified under NCM 8514.40.00.