NAICS Code 333131

NAICS 333131

NAICS Code 333131 – Mining Machinery and Equipment Manufacturing

Definition of NAICS Code 333131: This U.S. industry comprises establishments primarily engaged in the following:

  1. Manufacturing underground mining machinery and equipment, such as coal breakers, mining cars, core drills, coal cutters, rock drills and
  2. Manufacturing mineral beneficiating machinery and equipment used in surface or underground mines.
  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 333131

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Manufacturing surface mining machinery and equipment–are classified in Industry NAICS 333120, Construction Machinery Manufacturing;
  • Manufacturing well-drilling machinery–are classified in U.S. Industry NAICS 333132, Oil and Gas Field Machinery and Equipment Manufacturing;
  • Manufacturing coal and ore conveyors–are classified in U.S. Industry NAICS 333922, Conveyor and Conveying Equipment Manufacturing; and
  • Manufacturing underground mining locomotives–are classified in Industry NAICS 336510, Railroad Rolling Stock Manufacturing.

Other Index Entries for NAICS 333131

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • 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

Suggested Insurance Conversion Table for NAICS Code 333131

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 3507NAICS 333131
  • CA WC: 3560
  • MI WC: 3507
  • NJ WC: 3507
  • NY WC: 3507
  • WY WC: 333131
  • NAICS: 333131
  • GL: 56650
  • SIC: 3532

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 333131 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
  • Subsector 333: Machinery Manufacturing
  • Industry Group 3331: Agriculture, Construction, and Mining Machinery Manufacturing
  • Industry 33313: Mining and Oil and Gas Field Machinery Manufacturing
  • 6 Digit Code(s) 333131: Mining Machinery and Equipment Manufacturing
  • 6 Digit Code(s) 333132: Oil and Gas Field Machinery and Equipment Manufacturing
Other helpful NAICS Downloads

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NAICS Code 333131