Analysis
NAICS 333120 is the 2022 national industry for construction machinery manufacturing, part of 33312 (Construction Machinery Manufacturing). Census lists 60 example activities under it in the official index.
County Business Patterns counts 651 US establishments in this code in 2023, employing 64,700 people at an average annual payroll of $75,407 per employee (62nd percentile of national industries). 22% of the establishments have fewer than five employees, which points to larger operations.
Between 2018 and 2023 the number of establishments fell 12% and employment rose 1%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.
Its index entries, the activities Census uses to assign businesses to this code, include aggregate spreaders manufacturing, asphalt roofing construction machinery manufacturing, augers (except mining-type) manufacturing and backhoes manufacturing, among 60 in all.
Its goods appear in 134 statistical lines of the US tariff schedule, mostly under headings 8429 (self-propelled bulldozers, angledozers, graders, levelers…), 8431 (parts suitable for use solely or principally with the…) and 8708 (parts and accessories of the motor vehicles of headings…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.
Census lists 3 related activities that belong elsewhere, most often in 33313, 33392 and 336510. Businesses that do several things are classified by their primary activity, the one that generates the most value, so check those boundaries before settling on this code.
Official definition
This industry comprises establishments primarily engaged in manufacturing construction machinery, surface mining machinery, and logging equipment.
Illustrative Examples:
Backhoes manufacturing Bulldozers manufacturing Construction and surface mining-type rock drill bits manufacturing Construction-type tractors and attachments manufacturing Off-highway trucks manufacturing Pile-driving equipment manufacturing Portable crushing, pulverizing, and screening machinery manufacturing Powered post hole diggers manufacturing Road graders manufacturing Surface mining machinery (except drilling) manufacturing
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
| The business mainly does | Use instead |
|---|---|
| Manufacturing drilling and underground mining machinery and equipment | 33313 Mining and Oil and Gas Field Machinery Manufacturing |
| Manufacturing industrial plant overhead traveling cranes and hoists, truck-type cranes and hoists, winches, aerial work platforms, and automotive wrecker hoists | 33392 Material Handling Equipment Manufacturing |
| Manufacturing rail layers, ballast distributors, and other railroad track-laying equipment | 336510 Railroad Rolling Stock Manufacturing |
Index entries (60)
- Aggregate spreaders manufacturing
- Asphalt roofing construction machinery manufacturing
- Augers (except mining-type) manufacturing
- Backhoes manufacturing
- Bits, rock drill, construction and surface mining-type, manufacturing
- Blades for graders, scrapers, bulldozers, and snowplows manufacturing
- Bucket and scarifier teeth manufacturing
- Buckets, excavating (e.g., clamshell, concrete, drag scraper, dragline, shovel), manufacturing
- Bulldozers manufacturing
- Cabs for construction machinery manufacturing
- Chippers, portable, commercial (e.g., brush, limb, log), manufacturing
- Concrete finishing machinery manufacturing
- Concrete gunning equipment manufacturing
- Concrete mixing machinery, portable, manufacturing
- Construction machinery manufacturing
- Construction-type tractors and attachments manufacturing
- Cranes, construction-type, manufacturing
- Crushing machinery, portable, manufacturing
- Crushing, pulverizing, and screening machinery, portable, manufacturing
- Ditchers and trenchers, self-propelled, manufacturing
- Draglines, crawler, manufacturing
- Drags, road construction and road maintenance equipment, manufacturing
- Dredging machinery manufacturing
- Excavators (e.g., power shovels) manufacturing
- Extractors, piling, manufacturing
- Grader attachments manufacturing
- Graders, road, manufacturing
- Hammer mill machinery (i.e., rock and ore crushing machines), portable, manufacturing
- Highway line marking machinery manufacturing
- Jack hammers manufacturing
- Land preparation machinery, construction, manufacturing
- Loaders, shovel, manufacturing
- Log debarking machinery, portable, manufacturing
- Log splitters, portable, manufacturing
- Mixers, concrete, portable, manufacturing
- Mortar mixers, portable, manufacturing
- Off-highway trucks manufacturing
- Paving machinery manufacturing
- Pile-driving equipment manufacturing
- Planers, bituminous, manufacturing