2022 NAICS national industry in sector 31-33 Manufacturing
333519 Rolling Mill and Other Metalworking Machinery Manufacturing
NAICS 333519 is the US industry code for rolling mill and other metalworking machinery manufacturing. This U.S.
- Code
- 333519 (2022 NAICS)
- Title
- Rolling Mill and Other Metalworking Machinery Manufacturing
- Part of
- Metalworking Machinery Manufacturing
- SBA small business limit
- Up to 500 employees
- Closest UK SIC
- 28220, 28230 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing rolling mill machinery and equipment and/or other metalworking machinery (except industrial molds; special dies and tools, die sets, jigs, and fixtures; cutting tools and machine tool accessories; and machine tools).
Examples Census gives
- Assembly machines (i.e., wire making equipment) manufacturing
- Cradle assembly machinery (i.e., wire making equipment) manufacturing
- Metalworking coil winding and cutting machinery manufacturing
- Rolling mill roll machines, metalworking, manufacturing
- Wire drawing and fabricating machinery and equipment (except dies) manufacturing
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing industrial molds are classified in U.S. Industry 333511, Industrial Mold Manufacturing.
- Manufacturing metal cutting and metal forming machine tools are classified in U.S. Industry 333517, Machine Tool Manufacturing.
- Manufacturing special dies and tools, die sets, jigs, and fixtures are classified in U.S. Industry 333514, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing.
- Manufacturing accessories and attachments for metal cutting and forming machine tools (except saw blades) are classified in U.S. Industry 333515, Cutting Tool and Machine Tool Accessory Manufacturing.
Activities listed under 333519
The Census index assigns these 25 activities to this code. If your business matches one, this is your code.
- Assembly machines (i.e., wire making equipment) manufacturing
- Bar mill machinery, metalworking, manufacturing
- Billet mill machinery, metalworking, manufacturing
- Blooming and slabbing mill machinery, metalworking, manufacturing
- Coil winding and cutting machinery, metalworking, manufacturing
- Cold rolling mill machinery, metalworking, manufacturing
- Cradle assembly machinery (i.e., wire making equipment) manufacturing
- Draw bench machines manufacturing
- Galvanizing machinery manufacturing
- Hot strip mill machinery, metalworking, manufacturing
- Hot-rolling mill machinery, metalworking, manufacturing
- Marking machines, metal, manufacturing
- Picklers and pickling machinery, metalworking, manufacturing
- Pipe and tube rolling mill machinery, metalworking, manufacturing
- Plate rolling mill machinery, metalworking, manufacturing
- Propeller straightening presses manufacturing
- Rod rolling mill machinery, metalworking, manufacturing
- Rolling mill machinery and equipment, metalworking, manufacturing
- Rolling mill roll machines, metalworking, manufacturing
- Scarfing units, rolling mill machinery, metalworking, manufacturing
- Screwdowns and boxes machinery, metal, manufacturing
- Screwdriving machines manufacturing
- Structural rolling mill machinery, metalworking, manufacturing
- Tube rolling mill machinery, metalworking, manufacturing
- Wire drawing and fabricating machinery and equipment (except dies) manufacturing
SBA size standard for 333519
To count as a small business for SBA loans and federal contracts under NAICS 333519, your business (including affiliates) must not exceed 500 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2822, 2823), so treat them as a starting point and check the definition.
- 28220Manufacture of lifting and handling equipmentUK SIC
- 28230Manufacture of office machinery and equipment (except computers and peripheral equipment)UK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.