NAICS 33351 - Metalworking Machinery Manufacturing
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What is NAICS 33351
NAICS code 33351 encompasses establishments primarily engaged in the manufacturing of metalworking machinery. This includes the production of both metal cutting and metal forming machine tools, along with cutting tools, accessories, special dies, jigs, fixtures, industrial molds, and machinery such as rolling mill equipment, assembly machinery, and wire drawing machines. Businesses operating in this sector range from specialized tool manufacturers to large-scale industrial machinery producers that serve a diverse set of industries including automotive, aerospace, defense, and manufacturing. Government agencies contract for these services to support defense production, infrastructure development, research and development initiatives, and maintenance of critical industrial capabilities. These contracts ensure the availability of advanced machinery essential for national security and economic development.
Industry Classification for NAICS 33351
This industry comprises establishments primarily engaged in manufacturing metalworking machinery, such as metal cutting and metal forming machine tools; cutting tools; accessories for metalworking machinery; special dies, tools, jigs, and fixtures; industrial molds; rolling mill machinery; assembly machinery; coil handling, conversion, or straightening equipment; and wire drawing and fabricating machines.
Breakdown for NAICS 33351
- Includes manufacturing of metal cutting and metal forming machine tools.
- Covers production of specialized dies, jigs, fixtures, and industrial molds.
- Encompasses rolling mill machinery and coil handling equipment.
- Involves manufacturing of assembly and wire drawing machines.
- Relevant to firms meeting SBA size standards for manufacturing.
- Supports sectors including defense, aerospace, and industrial manufacturing.
Included Activities for NAICS 33351
- Designing and producing metal cutting machine tools.
- Manufacturing metal forming machinery and accessories.
- Fabricating special dies, tools, jigs, and fixtures for metalworking.
- Producing industrial molds for metal casting and shaping.
- Building rolling mill and coil handling machinery.
- Assembling wire drawing and metal fabricating machines.
- Providing maintenance and technical support for metalworking equipment.
- Customizing machinery for specific government manufacturing requirements.
Business Types for NAICS 33351
- Industrial machinery manufacturers specializing in metalworking tools.
- Tool and die makers producing specialized dies and fixtures.
- Precision engineering firms focusing on metal cutting equipment.
- Contract manufacturers serving defense and aerospace sectors.
- Small and medium-sized enterprises with expertise in manufacturing accessories.
- Suppliers of rolling mill and coil handling machinery.
Government Buyers for NAICS 33351
Government agencies such as the Department of Defense, Department of Energy, National Aeronautics and Space Administration (NASA), and the General Services Administration (GSA) are primary buyers of metalworking machinery manufacturing products. These agencies require high-precision machining equipment and accessories to support military hardware production, aerospace research, energy infrastructure maintenance, and other federal manufacturing needs. Additionally, state and local governments may procure these products for public works and industrial development projects. The specialized nature of these machines demands reliable suppliers with proven manufacturing capabilities and compliance with federal standards.
Contract Types & Procurement for NAICS 33351
Contracts in this NAICS sector typically include firm-fixed-price, cost-reimbursement, and indefinite delivery/indefinite quantity (IDIQ) types. Procurement methods can range from competitive bids to sole-source contracts, especially when specialized technology or proprietary machinery is involved. Contract values vary widely depending on the complexity and scale of the equipment, ranging from tens of thousands of dollars for tooling accessories to multi-million dollar contracts for large industrial machinery systems. Many contracts include provisions for long-term maintenance, upgrades, and technical support to ensure operational readiness.
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