Precision Sheet Metal
FabricationCustom Metal Fabrication for the Industries Building the Future.

Laser Cutting | Forming | Welding | Machining | Assembly

100%U.S. Based

AS9100Certified

ISO 9001Certified

ITARRegistered

44,000 SQ FTState-of-the-Art Facility

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47Years in Business

80+Employees

650+Active Customers

95K+Projects Completed

44,000Sq Ft Facility

17Certifications

Welcome to MJM Manufacturing, your one-stop-shop for precision sheet metal and machining solutions. As a fully integrated company, we offer comprehensive services under one roof, ensuring reliability and efficiency throughout the manufacturing process. With over 17 independent certifications including AS9100, ISO 9001, ITAR registration, and DBE certification, you can trust us to deliver top-quality results from blueprint analysis to the final product.

What We Do

Our Services

We specialize in precision sheet metal fabrication and machining — laser cutting, forming, welding, machining, hardware insertion, and finishing — all under one roof in Miami Gardens, Florida.

View Our Services

Capabilities

Industries We Serve

AerospaceITAR registered, AS9100 certified, AWS D17.1 welding — Lockheed Martin approved. DefenseITAR & DFARS, CAGE 0YLX1. Boeing, Northrop Grumman, BAE, L3 Harris. RoboticsEnclosures, chassis & precision components for robotics and automation OEMs. OEM ManufacturingSingle-source prototype-to-production fabrication, welding, assembly & finishing. Data CentersServer rack enclosures, cable management & infrastructure, high-volume. Medical DeviceAS9100 enclosures & housings with automated CMM inspection. TransportationDBE certified. Farebox & transit components — Cubic, Miami-Dade Transit. MarineDock boxes, power enclosures & brackets in marine-grade aluminum & 316 stainless. LightingHousings, reflectors & canopies for architectural & theatrical lighting OEMs. Kiosks & Self-ServiceEnclosures for ATMs, ticketing, EV charging & self-checkout kiosks. TelecommunicationsEnclosures, chassis & RF shielding for telecom & electronics — Motorola, IBM. Energy & PowerSwitchgear, solar mounting, EV charging & battery storage. DBE certified. ArchitecturalCustom aluminum & stainless panels, cladding & specialty metalwork. Laser Cutting5 Amada fiber lasers — mild steel to 1in, stainless & aluminum to 5/8in. Tolerances & ThicknessCut capacity 16ga to 1in plate, with full tolerance specs by process.

Long-Standing

Clients

Our list of long-standing clients, and their returning business is a testament of our quality and service.

Also Trusted By

Blue Origin
•
Collins Aerospace
•
Stryker
•
HEICO
•
Elbit Systems
•
Hitachi Rail
•
Brightline
•
Sanmina
•
Astronics
•
Johnson Controls

Google Reviews

What Clients Say

    
 
 
       Posted on Google  
   
   Ronald Travieso 
 
 
 
 Trustindex verifies that the original source of the review is Google. Working with MJM Manufacturing has been one of the best vendor experiences I've had. The parts matched my samples perfectly, and even the packing was done with real care — clean, organized, and professional. Of all the vendors I've worked with, they're by far the most organized and quality-focused. Great communication from start to finish. Highly recommend them for custom fabrication work.
  
 
      Posted on Google  
   
   Robert Cooler 
 
 
 
 Trustindex verifies that the original source of the review is Google. MJM is wonderful to deal with.  They have worked diligently and have produced my projects thus far to the highest standards.
  
 
      Posted on Google  
   
   Israel Schechter 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have been ordering parts from MJM Manufacturing for many years, and they have consistently exceeded my expectations. Their quality, professionalism, and attention to detail are outstanding. Every order is handled efficiently, delivered on time, and manufactured to the highest standards.
The team at MJM is knowledgeable, responsive, and always willing to go the extra mile to ensure customer satisfaction. It is rare to find a company that maintains such a high level of consistency over many years.
I highly recommend MJM Manufacturing to anyone looking for a reliable partner for complex, precision sheet metal parts and assemblies.
I. Schechter, Former President of GBI Intralogistics Solutions, Current Owner/President of IPSTEC, Aventura, Florida
  
 
      Posted on Google  
   
   Richard Havass 
 
 
 
 Trustindex verifies that the original source of the review is Google. As a customer, I have been working with MJM Manufacturing for approximately 35 years.

The expertise of Mike Mijares and his team at MJM is top notch. Whenever I have a new part design, I typically review the design of the part with MJM to ensure that I am using the most cost-efficient manufacturing process to produce the parts as economically as possible.

There was a part that we had made years ago using a progressive die to emboss a curved channel into a sheet metal part. The cost of the progressive die for this part was $55K. The redesign of the part from MJM consisted of $1200 in tooling to make the new part profile. Parts came out great and saved tens of thousands in tooling.

Lastly, whether MJM produces a prototype or a production run, the appearance of the part is pristine, no tool marks or scratches on any part. In the 35 years that I have worked with Mike and his team, I have found them to be one big family. Mike’s love for his business is refreshing! You rarely see a person that is so charged to get up for work every day!

Richard Havass
Mechanical Engineering Manager
JCI-Sensormatic
  
 
      Posted on Google  
   
   Sulen Ojeda Fuentes 
 
 
 
 Trustindex verifies that the original source of the review is Google. Esta fábrica está llena de muy buenos profesionales son una gran familia trabajadores de años con muy buena experiencia .lo recomiendo porque son un gran equipo. Y realizan muy buen trabajo.

HOW WE DO IT

Equipment & Tools

Learn MoreLearn More

MJM Manufacturing runs one of South Florida’s most capable precision fabrication floors — over 40 machines under one roof. Our laser department includes five Amada fiber laser systems (the 4kW Ventis with Locus Beam Control plus three 3kW Ensis units and a CO2 system), cutting mild steel up to 1″ and stainless and aluminum to 5/8″. Forming runs on nine Amada press brakes, including a 240-ton, 14-foot machine, alongside Knuth plate rollers up to 7 feet and an Amada CNC turret punch. We weld with nine IPG fiber laser welders, Sciaky spot welders, and certified TIG/MIG to AWS standards, machine on a Mazak CNC center, and verify every job with Amada Fabri-Vision and Keyence CMM automated inspection — all under our AS9100 and ISO 9001 certified quality system.

Family owned and operated since 1979, when Mike Mijares started MJM in a two-car garage in Miami Gardens. Today the second generation runs a 44,000 sq ft facility with more than 80 employees. Read our story.

Common Questions

Frequently Asked Questions

What industries does MJM Manufacturing serve?

MJM serves aerospace, defense, robotics, data centers, medical device, transportation, marine, lighting, kiosks, telecommunications, energy & power, architectural, and general OEM manufacturing across the United States.

Is MJM Manufacturing ITAR registered and AS9100 certified?

Yes. MJM is ITAR registered, AS9100 and ISO 9001 certified, and holds 17 independent certifications including AWS D17.1 welding, DBE, and MIL-I-45208A. CAGE Code 0YLX1, SAM.gov registered.

What materials and thicknesses can you laser cut?

Our five Amada fiber laser systems cut mild steel up to 1″, and stainless steel and aluminum up to 5/8″, plus copper, titanium, galvanized, and beryllium copper.

Do you handle both prototypes and production runs?

Yes. As a fully integrated single-source shop, we support everything from one-off prototypes through full-scale production — laser cutting, forming, welding, machining, hardware insertion, finishing, and assembly under one roof.

Where is MJM Manufacturing located?

We operate from a 44,000 sq ft facility at 5205 NW 161 Street, Miami Gardens, FL 33014. Call (305) 620-2020 or email info@mjmmfg.com.

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Made in USA Since 1979

Miami’s Premier Precision Sheet Metal Fabricator

MJM Manufacturing is Miami’s premier precision sheet metal fabrication and OEM manufacturing company. From our 44,000 sq ft facility in Miami Gardens, Florida, we serve aerospace, defense, robotics, data centers, medical device, transportation, marine, lighting, kiosks, telecommunications, energy and power, architectural, and OEM manufacturing industries across the United States. We offer a complete range of fabrication and machining services under one roof — laser cutting, CNC turret punching, forming, welding, machining, hardware insertion, and finishing.

Aerospace & Defense

ITAR registered, AS9100 certified, AWS D17.1 aerospace welding with Lockheed Martin program approval. CAGE Code 0YLX1, SAM.gov registered. Serving Boeing, Lockheed Martin, Northrop Grumman, BAE Systems, and L3 Harris.

Industrial & Commercial

Robotics, medical device, data center, transportation, marine, lighting, kiosk, telecom, energy, and architectural fabrication. DBE certified for transit and clean energy programs. Long-standing clients including Motorola, IBM, Cubic Transportation, and Miami-Dade Transit.

Certifications & Capability

17 certifications including AS9100, ISO 9001, ITAR, DBE, MIL-I-45208A, and AWS D17.1 aerospace welding. Five Amada laser cutting systems, nine IPG fiber laser welders, and Amada Fabri-Vision inspection. View certifications · View equipment.

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See our latest fabrication work, behind-the-scenes content, and shop updates.

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Call Request a Quote

MJM Manufacturing fabricates commercial and non-flight-critical components to customer specifications. We do not produce FAA-certified or airworthiness-regulated aircraft parts, or weapons, munitions, or functional weapon systems. Suitability and certification for end use is the customer’s responsibility.

Ronald Travieso

Working with MJM Manufacturing has been one of the best vendor experiences I've had. The parts matched my samples perfectly, and even the packing was done with real care — clean, organized, and professional. Of all the vendors I've worked with, they're by far the most organized and quality-focused. Great communication from start to finish. Highly recommend them for custom fabrication work.

Robert Cooler

MJM is wonderful to deal with. They have worked diligently and have produced my projects thus far to the highest standards.

Israel Schechter

I have been ordering parts from MJM Manufacturing for many years, and they have consistently exceeded my expectations. Their quality, professionalism, and attention to detail are outstanding. Every order is handled efficiently, delivered on time, and manufactured to the highest standards. The team at MJM is knowledgeable, responsive, and always willing to go the extra mile to ensure customer satisfaction. It is rare to find a company that maintains such a high level of consistency over many years. I highly recommend MJM Manufacturing to anyone looking for a reliable partner for complex, precision sheet metal parts and assemblies. I. Schechter, Former President of GBI Intralogistics Solutions, Current Owner/President of IPSTEC, Aventura, Florida

Richard Havass

As a customer, I have been working with MJM Manufacturing for approximately 35 years. The expertise of Mike Mijares and his team at MJM is top notch. Whenever I have a new part design, I typically review the design of the part with MJM to ensure that I am using the most cost-efficient manufacturing process to produce the parts as economically as possible. There was a part that we had made years ago using a progressive die to emboss a curved channel into a sheet metal part. The cost of the progressive die for this part was $55K. The redesign of the part from MJM consisted of $1200 in tooling to make the new part profile. Parts came out great and saved tens of thousands in tooling. Lastly, whether MJM produces a prototype or a production run, the appearance of the part is pristine, no tool marks or scratches on any part. In the 35 years that I have worked with Mike and his team, I have found them to be one big family. Mike’s love for his business is refreshing! You rarely see a person that is so charged to get up for work every day! Richard Havass Mechanical Engineering Manager JCI-Sensormatic

Sulen Ojeda Fuentes

Esta fábrica está llena de muy buenos profesionales son una gran familia trabajadores de años con muy buena experiencia .lo recomiendo porque son un gran equipo. Y realizan muy buen trabajo.