OEM Manufacturing & Contract Sheet Metal Fabrication | MJM Manufacturing
Single-Source OEM Manufacturing in Miami, Florida Since 1979
MJM Manufacturing provides full-service OEM manufacturing — precision sheet metal fabrication, machining, welding, powder coating, assembly, and prototype-to-production support for industrial and commercial products. As a fully integrated, single-source manufacturer, MJM takes your product from blueprint to finished, assembled, ready-to-ship part without subcontracting — all under one AS9100 and ISO 9001 certified quality system in our 44,000 sq ft Miami facility. With 600+ active customers and 47 years of experience, MJM is the long-term OEM fabrication partner that engineering teams rely on.
Single-Source OEM Manufacturing
Most fabricators send work out for finishing, hardware, or assembly. MJM does it all in-house — laser cutting, forming, welding, machining, hardware insertion, finishing, and assembly under one roof and one quality system. That means tighter quality control, fewer hand-offs, shorter lead times, and a single point of accountability for your entire program. Explore our complete fabrication services and equipment capabilities.
OEM Manufacturing Capabilities
- Precision CNC laser cutting — 5 Amada fiber lasers, tolerances to ±0.005″
- CNC forming and bending — 9 Amada forming machines
- CNC turret punching — high-volume perforation and patterning
- Certified TIG and MIG welding, IPG fiber laser welding, Sciaky spot welding
- CNC machining and mechanical assemblies
- Hardware insertion — PEM fasteners, standoffs, studs
- Powder coating, plating, anodizing, silk screening, and laser marking (turn-key)
- Automated optical inspection and CMM dimensional verification
- Prototype through high-volume production manufacturing
- Design for manufacturability (DFM) engineering review
What MJM Builds for OEM Customers
- Product enclosures, housings, and chassis
- Structural frames and weldments
- Brackets, panels, and mounting hardware
- Electrical and electronics enclosures
- Control panels and equipment cabinets
- Fabricated and assembled subassemblies
- Complete build-to-print products
Materials We Fabricate
MJM Manufacturing works with the full range of OEM fabrication materials:
- Aluminum (5052, 6061, 3003)
- Stainless steel (304, 316)
- Carbon steel (CRS, HRS)
- Galvanized steel
- Copper, brass, and titanium
- Polycarbonate and non-metallic sheet materials
See our full materials list.
Industries We Serve
MJM supports OEM manufacturing across a wide range of industries:
Prototype to Production Manufacturing
MJM supports OEM customers from early prototype development through full-scale production. Many customers start with a prototype to validate form, fit, and function, then scale to ongoing production with MJM as their long-term partner — without changing vendors. DFM engineering review is included at no charge as part of our quoting process.
Why OEMs Choose MJM
- Single-source manufacturing — fabrication, welding, machining, assembly, finishing under one roof
- AS9100 & ISO 9001 certified — audited quality systems with full traceability
- ITAR registered — cleared for controlled work
- 600+ active customers — proven, dependable OEM partner
- Prototype through production — scale without re-sourcing
- 24–48 hour quote turnaround — fast, accurate computerized quoting
- 47 years & 44,000 sq ft Miami facility — Made in USA since 1979
Certifications & Compliance
MJM Manufacturing holds 17 independent certifications including AS9100, ISO 9001, ITAR registration, DBE certification, MIL-I-45208A, SAM.gov registration, and CAGE Code 0YLX1.
Frequently Asked Questions — OEM Manufacturing
Does MJM Manufacturing support prototype development?
Yes. MJM supports both prototype and production manufacturing, with DFM engineering review before the first prototype is cut.
Is MJM a single-source OEM manufacturer?
Yes. MJM performs laser cutting, forming, welding, machining, hardware insertion, finishing, and assembly in-house under one quality system — so your OEM program has a single point of accountability.
Does MJM Manufacturing provide powder coating and finishing?
Yes. We provide powder coating, plating, anodizing, silk screening, laser marking, finishing, and assembly as part of our integrated manufacturing capabilities.
What industries does MJM serve for OEM manufacturing?
MJM supports OEM manufacturing for aerospace, defense, robotics, data centers, medical device, transportation, architectural, kiosk, and commercial product manufacturers.
How do I get a quote for an OEM manufacturing project?
Email your drawings and specifications to sales@mjmmfg.com with material, gauge, quantity, and requirements, or call (305) 620-2020. Our engineering team responds within 24 to 48 hours.
Contact MJM Manufacturing to discuss your OEM manufacturing project or request a quote at sales@mjmmfg.com.
