NAICS 333519 Quarterly Industry Report
Rolling Mill and Other Metalworking Machinery Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 333519Sector: 33Updated: Q1 2026
About This Report
This Fair Market Value industry report covers NAICS 333519 (Rolling Mill and Other Metalworking Machinery Manufacturing) using the 2022 North American Industry Classification System. Data sources include the U.S. Census Bureau[5] NAICS classification, Bureau of Labor Statistics[6] manufacturing employment data, and SBA size standard tables. Content addresses industry structure, product scope, and market dynamics for establishments manufacturing metal processing equipment not classified under other specific metalworking machinery codes.
Industry Snapshot
Key metrics for the rolling mill and other metalworking machinery manufacturing industry.
Industry Definition & Overview
Rolling Mill and Other Metalworking Machinery Manufacturing (NAICS 333519) encompasses establishments primarily engaged in manufacturing rolling mill machinery, wire drawing machines, metal coil processing equipment, and other metalworking machinery not classified elsewhere. Products include rolling mill roll machines, wire drawing and fabricating equipment, coil winding machinery, coil slitting and cutting systems, and metal straightening equipment. Per the Census Bureau[5], this catch-all classification covers metalworking machinery not included in mold manufacturing, die and tool making, cutting tool production, or machine tool categories.
Manufacturing processes involve heavy steel fabrication, precision roller machining, hydraulic system integration, and electronic control system assembly. Rolling mill machinery requires large-scale manufacturing capabilities for producing heavy rollers, housings, and drive systems. Wire drawing equipment demands precision die holders, capstan assemblies, and tension control systems. Workforce requirements include mechanical engineers, heavy equipment fabricators, hydraulic technicians, and control system programmers who design and commission complex metal processing lines.
Geographic distribution follows primary metals manufacturing activity. Facilities concentrate in the industrial Midwest and Mid-Atlantic regions near steel mills, aluminum processors, and wire products manufacturers. According to BLS data[6], manufacturing employment distributes across states with established metalworking infrastructure. Customer relationships tend toward long-term partnerships, as rolling mill and wire processing equipment represents major capital investments customized for specific metal grades, dimensions, and production speeds.
What's Included in This Industry
- Rolling mill machinery and roll machines
- Wire drawing and fabricating machinery
- Metal coil winding and unwinding equipment
- Coil slitting and cutting machinery
- Metal straightening and leveling equipment
- Tube and pipe mill machinery
- Metal assembly machines
- Metal marking and engraving machinery
- Metalworking machinery parts and subassemblies
- Custom metal processing line equipment
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Machinery Manufacturing | 333 |
| Industry Group | Metalworking Machinery Manufacturing | 3335 |
| NAICS Industry | Metalworking Machinery Manufacturing | 33351 |
| National Industry | Rolling Mill and Other Metalworking Machinery Manufacturing | 333519 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 333511 | Industrial Mold Manufacturing | Manufactures industrial molds for metal casting and forming operations, sharing precision machining capabilities and metallurgical expertise with metalworking machinery producers but creating tooling rather than processing equipment |
| 333514 | Special Die and Tool, Die Set, Jig, and Fixture Manufacturing | Produces special dies, jigs, and fixtures used in metalworking operations, with die design often matched to specific rolling mill and forming equipment specifications |
| 333515 | Cutting Tool and Machine Tool Accessory Manufacturing | Manufactures cutting tools and machine tool accessories consumed by metalworking operations, sharing materials science knowledge and precision manufacturing capabilities with equipment producers |
| 333517 | Machine Tool Manufacturing | Produces metal cutting and forming machine tools as distinct categories of metalworking equipment, with machine tools classified separately from the rolling mills and processing machinery covered here |
| 332811 | Metal Heat Treating | Provides metal heat treating services for processing metalworking machinery components to achieve required hardness and wear resistance specifications for rollers and dies |
| 333995 | Fluid Power Cylinder and Actuator Manufacturing | Manufactures fluid power cylinders and actuators providing hydraulic force application essential to rolling mill operation, metal forming presses, and wire drawing machinery |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Michigan | 16.0% | 46 |
| 2 | Illinois | 13.2% | 38 |
| 3 | Ohio | 12.5% | 36 |
| 4 | Pennsylvania | 7.6% | 22 |
| 5 | California | 6.6% | 19 |
| 6 | Connecticut | 3.8% | 11 |
| 7 | Indiana | 3.8% | 11 |
| 8 | Texas | 3.5% | 10 |
| 9 | Wisconsin | 3.1% | 9 |
| 10 | New York | 3.1% | 9 |
% Of Establishments
0%
16%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
56
Total SBA Loans
$56.4M
Total Loan Volume
$1.0M
Average Loan Size
11 yrs
Average Loan Term
10.11%
Average Interest Rate
1,256
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The Small Business Administration[7] sets the size standard for NAICS 333519 at 500 employees. Firms averaging 500 or fewer employees over the preceding 12 months qualify as small businesses for SBA loan programs, federal contracting set-asides, and small business certifications. This threshold applies to establishments where rolling mill or other metalworking machinery production represents the primary business activity. Eligible businesses can access SBA 7(a) loans[8] for working capital, equipment, and acquisition financing, while 504 loans[9] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Live Oak Banking Company | 16 | $40.0M | $2.5M |
| 2 | U.S. Bank, National Association | 16 | $12.0M | $747K |
| 3 | Northeast Bank | 16 | $3.2M | $200K |
| 4 | Enterprise Bank | 8 | $1.2M | $150K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 333519?
NAICS 333519 classifies establishments primarily engaged in manufacturing rolling mill machinery, wire drawing equipment, coil processing systems, and other metalworking machinery not covered by more specific codes. The Census Bureau[5] distinguishes this from machine tools (NAICS 333517), industrial molds (NAICS 333511), and special dies (NAICS 333514).
How is the metalworking machinery manufacturing industry structured?
Large manufacturers produce complete rolling mill systems and integrated metal processing lines for steel and aluminum producers. Mid-size firms specialize in specific equipment categories such as wire drawing machines, coil slitting lines, or tube mills. Smaller manufacturers build custom processing equipment, replacement components, and retrofit packages for existing metalworking installations.
What is the SBA size standard for metalworking machinery manufacturers?
The SBA sets the size standard at 500 employees for NAICS 333519. Firms at or below this threshold qualify as small businesses for federal contracting preferences and SBA lending programs. Details appear in the SBA size standards table[7].
What NAICS codes are closely related to rolling mill machinery manufacturing?
NAICS 333517 covers machine tools as a separate metalworking equipment category. NAICS 333511 covers industrial molds. Market 333515 covers cutting tools. NAICS 333514 covers dies and fixtures. These adjacent codes together comprise the metalworking machinery manufacturing industry group.
What industries depend on rolling mill and metalworking machinery manufacturers?
Steel mills purchase rolling equipment for converting slabs into sheet, plate, and structural products. Wire products manufacturers invest in drawing and fabricating equipment. Per BLS data[6], primary metals manufacturing employment depends on rolling mill and processing equipment from NAICS 333519 producers.
What activities does NAICS 333519 include?
Covered products include rolling mill machinery, wire drawing equipment, coil processing lines, tube mill machinery, metal straightening equipment, and metal assembly machines. Manufacturing activities span heavy steel fabrication, precision roller machining, hydraulic system assembly, and control system integration. Excluded items include machine tools (NAICS 333517), molds (NAICS 333511), and cutting tools (NAICS 333515).
Are metalworking machinery manufacturers eligible for SBA loans?
Yes, manufacturers meeting the 500-employee threshold qualify for SBA 7(a) loans, 504 loans, and federal contracting set-asides. The SBA funding programs[10] page details eligibility for manufacturing businesses seeking capital for heavy fabrication equipment, assembly facilities, and working capital.
Where is rolling mill machinery manufacturing concentrated in the United States?
Facilities concentrate in the industrial Midwest and Mid-Atlantic regions near steel mills and primary metals processors. Ohio, Pennsylvania, and Indiana host notable concentrations of metalworking equipment manufacturers. According to BLS employment data[6], manufacturing employment clusters in states with established steel production and metalworking infrastructure supporting heavy equipment manufacturing.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]Census Bureau census.gov
- [6]BLS data bls.gov
- [7]Small Business Administration sba.gov
- [8]SBA 7(a) loans sba.gov
- [9]504 loans sba.gov
- [10]SBA funding programs sba.gov
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