Next, we will describe the types of establishments to which the NAICS code 333131 is dedicated, as well as their classification in the context of the various industries. On this occasion, we will explore the nature of the companies that are grouped under this code and how they are categorized within the industrial classification system.
Description NAICS Code 333131 – Mining Machinery and Equipment Manufacturing
This U.S. industry comprises establishments primarily engaged in (1) manufacturing underground mining machinery and equipment, such as coal breakers, mining cars, core drills, coal cutters, and rock drills, and (2) manufacturing mineral beneficiating machinery and equipment used in surface or underground mines.
NAICS code 333131 includes:
- Amalgamators (i.e., metallurgical and mining machinery) manufacturing
- Augers, mining-type, manufacturing
- Bits, rock drill, underground mining-type, manufacturing
- Breakers, coal, manufacturing
- Cars, mining, manufacturing
- Cleaning machinery, mining-type, manufacturing
- Coal breakers, cutters, and pulverizers manufacturing
- Concentration machinery, mining-type, manufacturing
- Core drills, underground mining-type, manufacturing
- Crushing machinery, stationary, manufacturing
- Cutters, coal, manufacturing
- Drilling equipment, underground mining-type, manufacturing
- Drills, core, underground mining-type, manufacturing
- Drills, rock, underground mining-type, manufacturing
- Dumpers, mining car, manufacturing
- Feeders, mineral beneficiating-type, manufacturing
- Flotation machinery, mining-type, manufacturing
- Hammer mill machinery (i.e., rock and ore crushing machines), stationary, manufacturing
- Loading machines, underground mining, manufacturing
- Mineral processing and beneficiating machinery manufacturing
- Mining cars manufacturing
- Ore crushing, washing, screening, and loading machinery manufacturing
- Pellet mills machinery, mining-type, manufacturing
- Quarrying machinery and equipment manufacturing
- Rock crushing machinery, stationary, manufacturing
- Rock drills, underground mining-type, manufacturing
- Scraper loaders, underground mining-type, manufacturing
- Screening machinery, stationary, manufacturing
- Sedimentary mineral machinery manufacturing
- Sieves and screening equipment, mineral beneficiating, manufacturing
- Stone beneficiating machinery manufacturing
- Underground mining machinery manufacturing
- Washers, aggregate and sand, stationary, manufacturing
NAICS Code 333131 does not include the following references:
- Manufacturing surface mining machinery and equipment–are classified in Industry 333120, Construction Machinery Manufacturing;
- Manufacturing well drilling machinery–are classified in U.S. Industry 333132, Oil and Gas Field Machinery and Equipment Manufacturing;
- Manufacturing coal and ore conveyors–are classified in U.S. Industry 333922, Conveyor and Conveying Equipment Manufacturing; and
- Manufacturing underground mining locomotives–are classified in Industry 336510, Railroad Rolling Stock Manufacturing.
