333131 - Mining Machinery and Equipment Manufacturing

Introduction

NAICS code 333131 represents the vital industry of Mining Machinery and Equipment Manufacturing—a cornerstone in mining operations worldwide. This sector specializes in producing highly specialized machinery that supports mineral extraction, boosting efficiency and safety. Whether you’re a manufacturer, supplier, or industry analyst, understanding NAICS 333131 is essential to navigate this manufacturing sector effectively.

What is NAICS Code 333131?

NAICS 333131 comprises establishments primarily engaged in manufacturing mining machinery and equipment. This includes a broad range of machinery such as drilling machines, crushers, conveyors, and other essential mining machines. These products are designed explicitly for extracting minerals and geological materials from the earth, ensuring mining operations run smoothly and cost-effectively.

Sector Overview: Manufacturing

This industry falls within the broader Manufacturing sector, focusing on fabricating specialized equipment used in mining sectors. Manufacturers under this code develop durable, robust machinery tailored to the rigorous demands of underground and surface mining applications.

Typical Business Activities Include:

• Manufacturing drilling machines for mining applications
• Producing mining crushers and conveyor systems
• Manufacturing underground mining equipment like rock drills and scrapers
• Fabricating crushing, screening, and loading machinery
• Producing flotation and beneficiation machinery

Size Standard and Eligibility

For government contracting and regulatory purposes, the size standard or maximum number of employees for businesses under NAICS 333131 is typically 900 employees. This threshold is essential for small business eligibility when bidding on government contracts or applying for grants.

Examples of Businesses Under NAICS 333131

• Manufacturers of underground rock drills
• Producers of coal breakers and pulverizers
• Companies specializing in conveyor systems for mineral processing
• Fabricators of core drilling equipment for mining operations
• Businesses making loaders and dumpers specific to mining environments

Detailed Breakdown of Code 333131

Equipment/Machinery Type	Description
Amalgamators (metallurgical and mining machinery)	Manufacturing amalgamators used in mineral processing
Augers, mining-type	Manufacturing augers designed for mining tasks
Bits, rock drill, underground mining-type	Manufacture of rock drill bits for underground use
Breakers, coal	Coal breaker machinery manufacturing
Cars, mining	Production of mining cars
Cleaning machinery, mining-type	Mining-specific cleaning equipment manufacturing
Coal breakers, cutters, and pulverizers	Manufacturing coal crushers and related cutters
Concentration machinery, mining-type	Equipment for concentrating minerals
Core drills, underground mining-type	Core drilling machines manufacturing
Crushing machinery, stationary	Stationary crushers
Cutters, coal	Manufacture of machines that cut coal
Drilling equipment, underground mining-type	Manufacture of drilling machines for underground mining
Drills, core, underground mining-type	Core drilling equipment manufacturing
Drills, rock, underground mining-type	Rock drilling equipment
Dumpers, mining car	Mining dumper manufacturing
Feeders, mineral beneficiating-type	Mineral feeding and processing equipment
Flotation machinery, mining-type	Manufacturing flotation equipment
Hammer mill machinery (rock and ore crushers)	Crushing machinery manufacturing
Loading machines, underground mining	Equipment for loading in underground mining
Mineral processing and beneficiating machinery	Various mineral processing machines
Mining cars	Manufacturing transportation cars for mining
Ore crushing, washing, screening, and loading machinery	Equipment for crushing, washing, screening, and loading ore
Pellet mills machinery, mining-type	Manufacture of pelletizing machinery
Quarrying machinery and equipment	Quarry-specific manufacturing equipment
Rock crushing machinery, stationary	Stationary rock crushers
Rock drills, underground mining-type	Underground rock drills manufacturing
Scraper loaders, underground mining-type	Underground scraper loaders
Screening machinery, stationary	Screening equipment manufacturing
Sedimentary mineral machinery	Machinery for sedimentary mineral extraction
Sieves and screening equipment, mineral beneficiating	Mineral beneficiating sieves and screening equipment
Stone beneficiating machinery	Machinery for treating stone and aggregates
Underground mining machinery	Various machinery made specifically for underground mining
Washers, aggregate and sand, stationary	Stationary washers for aggregate and sand

Frequently Asked Questions (FAQ)

What does NAICS code 333131 cover?

It covers establishments primarily engaged in manufacturing mining machinery and equipment for mineral extraction, including drills, crushers, conveyors, and other mining-specific machinery.

Which sector does NAICS 333131 belong to?

This code is part of the Manufacturing sector.

What are some common products manufactured under this NAICS code?

Typical products include underground drilling machines, rock crushers, coal breakers, mining cars, flotation machinery, and screening equipment.

Who uses NAICS 333131 codes?

Manufacturers, suppliers, government agencies, and contractors specializing in mining machinery manufacturing use this code for classification and contracting.

What is the size standard for businesses under NAICS 333131?

The size standard is capped at 900 employees for eligibility as a small business in government and industry programs.

How does this NAICS code benefit businesses?

It helps in identifying classification for government contracting, market research, compliance, and strategic planning related to mining machinery manufacturing.

---

By understanding NAICS code 333131 - Mining Machinery and Equipment Manufacturing, companies and stakeholders can better navigate the mining equipment market, optimize operations, and identify new business opportunities in this manufacturing sector.