Industrial Process Furnace & Oven Manufacturing
Key Figures
Figures are published for NAICS 333994 directly.
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Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing industrial process ovens, induction and dielectric heating equipment, and kilns (except cement, chemical, wood). Included in this industry are establishments manufacturing laboratory furnaces and ovens.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain.
Which code does this activity belong in?
Industrial process furnaces and ovens are classified in NAICS 333994, which covers establishments that manufacture equipment designed to heat materials through induction, dielectric means, or in kilns for industrial applications, along with laboratory furnaces and ovens. This code is distinct from welding equipment manufacturing, which produces equipment specifically for joining metals rather than general heating processes. Establishments making fluid power cylinders, pumps, or handtools are classified elsewhere, as are those manufacturing other miscellaneous general purpose machinery not specified in this category.